mercury outboard won t rev up. April 1, 2007 at 11:34 pm #555741. The engine is starved for fuel, and won’t start. 4 Cylinder InLine, 4 Stroke DOHC, 16 Valves. The Pro XS 250/300 feature different engine mapping than the FourStrokes, allowing them to achieve 200 more rpm — up to 6200 — for more overall power and higher speed. A generic spark detector will do. The 40, 50 and 60hp models are available with either standard or BigFoot gearcases. I have a 1986 60hp 2 stroke mercury outboard motor! She runs fine in neutral when you rev it up and everything, but as soon as I go in gear and begin to accelerate she wants to bog down and shutoff. If you can't hook up a portable tank, try some new gas. My 97-98 Mercury 40hp outboard won't start after it has warmed up. I have a 115 mercury on my pontoon and some times mine does that, what i do is tilt my motor all the way down till i get up on plane. oil mix on 99 mercury 25 hp outboard. Took it out the first time and it ran fine. It has everything you need to do repairs or maintenance. All of our new & used products come complete with a factory warranty. Just recently I've had my Mercury optimax sitting in neutral only to have the RPMs increase. It ran great, went into forward and reverse fine, no grinding or difficulty getting into gear. In reality, this problem can be caused by a variety of issues. Each component should be placed and connected with different parts in particular manner. og990793 2000 mercury 40hp outboard repair manuel. Go Wont Over Outboard Mercury Rpm 3000. Boulogne sur mer & Marbella Spain. Mercury could not suggest any resistance readings to be made on the coils and the cheezey CM manual I have indicates that there is NO high and low speed coils just one set. Mercury fourstrokes feature large displacement which increases torque for inproved performance and efficiency. The motor starts and runs fine but when you push the shifter forward or backward there is no customary "click" and the prop barely spins. Mercury outboard idles rough and/or stalls refers to when a Mercury outboard runs in an irregular or uneven manner while in neutral or out of gear. I took it to a reliable marine mechanic and I water coming into 2 cylinders. From one day to the next my Mercury Outboard would no longer get past 3000 RPM. Will rev in neutral to 5000 rpm, will rev in land to 5000 rpm forward or reverse. Please review our Warranty, Returns & Refunds policies before you place an order. If engine won’t rev up and shakes real bad, the S. Why does outboard motor OVER. At just 41 lbs, Mercury designed the 3. With this manual, you may maintain, service, diagnose and repair your own. I thought at first it was due to the cold, but now I am thinking something is not right. I've had a couple issues but one seems to persist. If your outboard motor isn't running at its best, check the fuel vent on . Outboard not getting full RPM — re: not reaching max rpm. It will run fine a little above idle. Once the rubber boot tore, the engine would suck in a bunch of air and rev up again; causing the engine to not run at all, or run at such a high RPM it was ridiculous, if not downright scary if you didn’t know what was going on! This ended up being another quick fix though. "Stowing a motor vertical is just fine for a 2-stroke motor, because a 2-stroke outboard has its oil mixed in the gas, so there isn't an issue. I also noticed the tachometer bouncing on me a few times. The motor required overhauling, had the pistons replaced and bored out. Unlike inboard motors, outboard motors can be easily removed for storage or repairs. You just don’t want to rev up the engine and run it at higher RPM’s. Check for lack of raw water flow by noting the temperature of the outlet side of the system. I was out for approx 40 mins when I entered a river to head to a mooring. A spun hub feels like a loss of power with excessive RPM. 2003 Yamaha 90 HP Outboard Won't Rev-up passed 2,500 RPM. If engine won't rev up and shakes real bad, the S. Top Reasons Boats Fail, Sputtering or losing power. Mercury Outboard Wiring Diagram Schematic - mercury outboard wiring diagram schematic, Every electric arrangement consists of various unique pieces. I switch to a 4 blade prop 8M8027511 because I was not getting enough torque to put the boat on plane with three guys. Founded in 1939 by the talented engineer-businessman Carl Kiekhaefer, the Mercury brand of boating engines are found as factory equipment with many. This also happens sometimes when I ease the throttle up. Fuel lines often clog if the engine is run through salty, muddy or polluted water. There will be principal lines which are represented by L1, L2, L3. The quicker you notice and pick up on changes, the better. [the Mercury 150-HP Black Max] finally cranked and would rev fine, but, when I engaged the forward gear, the [outboard engine] would only rev to 1800-RPM and [the boat speed would] reach [only] 6-MPH. We ended up replacing our low pressure pump. 9 horsepower Mercury outboard will not activate; e. Once in gear the RPM's are so low that the engine dies. It wont go over 2000 rpm, it just bogs down and quits. I have a 2008 4 stroke Mercury 60 bigfoot on pontoon boat. idle reves up really high on starting or shifting from gear to neutral then drops to low idle and stumbles o. If the engine is NOT overheating, this can be caused by a temperature sensor failing early. Debris such as fishing line, excessive seaweed, beer can rings, or nearly any other material can wrap around the propeller and its spindle. If your outboard motor will not throttle up, the issue may be as simple as a tangle. Like I mentioned earlier, the exact same thing happened to me a number of times when we got gas from a station up in Canada. This manual contains maintenance and repair procedure for the 1977-1989 Mercury Mariner Outboard 45HP-220HP. The 200 starts out at $15,895, with the prices of the 225, 250 and 275 checking in at $16,720, $17,931 and $19,070. A throttle position sensor, or TPS, is a device which is used to monitor the air intake of an internal combustion engine. 1994 up | 2-Stroke | 3 Cylinder 1387cc | S/N 0D283222 up. He figured that was the problem, the water was fouling out two cylinders. When 2 stroke engine troubleshooting and the engine is flooded, you want to spin the engine over fast with the throttle wide open several times. If your Mercury outboard needs repair, turn to Wholesale Marine. Mercury verado 200 won't rev past 3000rpm what could be the problem - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. I purchased the boat a week ago tested it on the river everything seemed fine. 1987-1993 | 2-Stroke | 3 Cylinder 1165. So I replaced the crank sensor drove perfect for a day then going down the highway same thing died won't start. We where told the motor ran fine, but obviously it does not and im not sure the owner ever had it running. Lack of raw water flow and lack of fresh water can cause water pump failure. 9 Merc with console throttle shift (not tiller) that won't engage when place in forward or reverse gear. Mercury Outboard Idles Rough and Stalls. motor has new spark plugs,impeller, water pump. Mercury Optimax* WOT RPM Range Chart; HP/Model Year Wide Open Throttle RPM Range* Gear Ratio; 75: 2004~ 5000-5750: 2. Simple to install with 15 feet of cable, it brings speed and trim adjustments to hand with Mercury equipment. rebulit checked the fuel line and put new gas in it. The poor WOT performance may just be a clogged fuel filter and the high idle may have . The most common cause of outboard motor overheating is water pump failure. jeremy fountainthemowermedic1mail and business inquires [email protected] When I attempt to go full throttle, it will run fine for a few seconds and then start bogging down and/or lose power. When the engine misfires, you may have trouble getting your boat up to speed. It is an 87 Evinrude 70 hp console. If not, the arrangement will not work as it should be. Discover the people behind the industry's best ownership experience: the detail-minded, quality-focused people of Mercury Sep 10, 2020 · +. Hi, I have a 2004 Mercury 115hp 4-stroke EFI outboard, when i rev the engine on neutral sounds fine and will rev up till rev limiter, but in gear or under load, it will start bogging past 3500 rpm and … read more. 9 HP) Won’t Start or Stalls After Starting November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5 There can be many reasons why a 9. Fished for about 30 min and then it cranked right up, but now my boat does not have the power to get on plane, the highest it will run is 3,000 rpm. In this video I go through the manual tilt lock bracket and shallow water mechanism on an outboard motor. It's a 90 hp mariner 2003 outboard 3 cylinder 2 stroke. The best source for Mercruiser OEM parts, marine engines, boat & engine parts, accessories, boating supplies, tools, & aquatic sporting goods. If the Mercury Outboard 115 will not start, this can indicate a variety of things. Good luck!-Chad Don't EVER allow an outboard to free-rev above 2000 RPM under ANY circumstances. I noticed about the only rust on the motor was on the bare parts of the cables where they left their sheathing inside the cowling and wrapped around their cams. the gear oil was changed, spark,compression, and carbs all checked out good. I recently purchased a 2003 Pantera classic with a 2003 200 mercury EFI. Make sure that all of the Tan wires are located as far as possible from the spark plug wires. 5 HP outboard for real portability. Starting Serial Number 0T178500. The easiest way to do this is by eliminating the. Troubleshooting 2 Stroke Ignition Problems. 07-23-2021, 09:42 AM it won't hurt to run it for a minute dry. 90-10184020 FEBRUARY 2001 Printed in U. Currently, there are 0 users and 1 guest visiting this topic. 45 mins later off to a new spot and the motor won't rev up. MERCURY Outboard Motor Fault Code № - VesselView Short Text -VesselView Long Text - Action Text. Once you’re convinced it won’t go any farther pull the line out, and start the engine up. Re: 1979 Mercury 140 Outboard won't rev under load Definitely check the stator, failure to rev up is a common symptom for stator issues. With my 70hp my boat will top out at 30mph and now i put the throttle down and it goes 9mph wide open. The boat will usually run about 5,500 RPMs at full speed with that prop. Just installed a new battery on my Mercury 150 4-stroke, 2014. It started doing this late last summer and I looked at it for a couple weekends and then gave up. It can rev up to 1200-RPM or more. See what happens! If it works, change the lower unit oil too. It ran fine one morning and after. Are you looking for good advice about your Mercury outboard engine problems and issues. Mercury outboard cranks but will not start refers to when the Mercury outboard motor’s crankshaft turns but will not cause the motor to begin to work, or may. Like all mechanical equipment, Mercury motors can exhibit issues, ignition problems being some of the most worrisome. Approx 6-7 months later he brought the engine back in saying it wouldn't idle at the dock and had a loss of power. A water flow problem is indicated if the water temperature is excessively high. Simply twist it open and monitor your engine for improvement. Being a 2012, isn't it under warranty? Your dealer should not be putting you off until June, that is terrible service. It sounds like ignition but if the engine revs in reverse I can not Had the call back today from Mercury as usual it wouldn't play up . Mercury Optimax revving up high RPMs in neutral. The red button in the end won't depress very far. Outboard engines, as with any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power band. Mercury Outboard not reaching full RPM. Bolinder's two-cylinder Trim outboard engine. The primer bulb can't suck it up without removing it. If you live anywhere near Lomira, give Josh at the Boat Doc a call. Mercury Marine is an international motor boat company based in Lake Forest, Illinois, providing motors for private, commercial and government craft. Assumed Ethanol affected carb or small amout of gas left from previous year. Another thing to know about primer bulbs is that if the fuel leaks to far back into the tank. 9 HP) Won't Start or Stalls After Starting November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5 There can be many reasons why a 9. One friend/firefighter/mechanic, one old Mercury outboard mechanic, and two current outboard mechanics go thru my engine all swearing it was electrical. I had a cracked intake gasket and he replaced that. and my engine will rev up also. About T Won Up Outboard Rev Mercury. Hi guys, just brought a almost new boat with 115 mercury pro xs, 85hrs and after having multiple minor issues fixed i took the wife and dogs out to watch the firewrx last night from the water and on the way in the motor started missing and running realy crap like a old 2 banger, im nearly ready to drive it back into. It engages the lower unit fine and makes the boat get in gear but will not take any rpm's. Injunction of two wires is usually indicated by black dot to the intersection of two lines. Plugs changed often, impeller and gear oil every season. everything is new fuel pump to i had the carb rebuilt rodchester it was running great but now it bogs out at 3000 rpm and its getting worse it started doing it at 4500 rpm, but when i'm in neutral it runs great i rev it up sounds good. They are dependable, powerful and relatively quiet. Sometimes, the hub only spins when the engine revs above a certain RPM, causing many boaters to wonder if they have spun a hub, are experiencing ventilation or cavitation, or have some kind of gear or power issue with their outboard. I have the same outboard as you. Owner's Manual for more information. It seemed to run fine up to 3000 RPM but once I got at that RPM the motor sta. 60 hp Mercury 2 stroke issues. on your motor , it may seem like you have less than a 1/4 tank left of oil left, because yo ucan stil see oil in the little visual gauge. Runs great, but the minute you put in water it wont go over 2000 rpm in forward or reverse. I finally started buying premium and brought extra gas up in cans. Before I used the boat last week the cranking battery was dead. Set the gap on the detector to 3/8 of an inch. 25 hp Mercury outboard worth buying? From what I understand you can't rev. Let's take a look at seven reasons why your outboard won't throttle up and how to fix them: Tangled Propeller Poor Gas Quality Clogged Fuel Filter Fuel Hose Replacement Faulty Impeller Bad Spark Plugs Malfunctioning Fuel Pump 1. They make high-quality, high-performance one and two-stroke engines. If the noise is being generated while the car is being driven have a helper ride along in the rear seat to give a different perspective on the origin of the Oct 25, 2021 · Sep 09, 2008 · My 97-98 Mercury 40hp outboard won't start after it has warmed up. An air leak or mis-adjustment will cause the high idle. Runs but won't accelerate under load. On the simplest of outboard engines these are easily replaceable, often installed inline between the fuel inlet and the carburetor. Got a question for you My outboard motor will not go into reverse. The motor was the same as yours (60hp Mercury) and an inboard tank. The first step is to identify what the cause of the problem is. I've had this motor for 7 yrs now. In neutral in will rev up past 5000 rpm and sounds fine. They can die when put in gear because one or more cylinders may have a problem and are not firing. Now today the RPM's would not go back down at all. Boat runs fine, isn't acting funny at all-just won't go faster, even with the throttle pushed all the way down! Marine Mechanic: James , Marine Mechanic replied 11 years ago It's not a spun hub, or the engine rpms would rev really high without much (if any) forward motion. Mercury outboard motor owners can cruise rivers and lakes with easy-access control using this Mercury Quicksilver Remote Control with 8 Pin connector. I don't see a listing of beep codes in my service book. At NO TIME SHOULD YOU SEE BATTERY VOLTAGE ON A KILL CIRCUIT. Google "mercury outboard beep codes". them up in neutral but have to click it into gear. The classic symptom of this problem is a motor that misfires and runs roughly, with loss of power even when warm, but improving when given choke. 1995 75 mercury won't rev up Motors and Props. Everything great until I went to turn. Replace the propeller with a higher or lower pitch prop. There is absolutely nothing wrong with running an outboard engine using the flushing port on the engine. Common Reasons Your Mercury Mariner Wont Accelerate. 5 hp two stroke outboard that exhibits the reluctance to rev up. Thing idles great and will idle for hours. My 2007 Mercury (by Tohatsu) 9. Mercury Introduces New 60R Outboard Motor. water is not pumping out of the water pump. Mine starts no problem but when going full throttle it will die sometimes or takes forever to get going but it never gets top speed. The throttle control is a lever that can be pressed forward to increase the speed of the boat. This is the best Mercury Outboard Forum on the internet, So the issue at the moment is that it won't rev up over 2000 rpm while under load. just disconnect the wires for it. The next step would be to check the output shaft carrier seals, shown below. He is the best in the state on Mercury motors. To check for blockage, run a small, thin segment of wire up the output tube and . Starts fine and when put in gear will proceed on slow. When I connected the battery cables, an intermittent alarm started beeping and the motor started clicking. The motor stays on fine and is idling normally. You will likely feel the prop slipping at high RPM. Transcript · 2003 Yamaha 90 HP Outboard Won't Rev-up passed 2,500 RPM! FiX · 1990 Mercury 25hp Bogging down at full throttle and pulsating. Mercury FourStrokes have long led the pack with clean, quiet, fuel-efficient outboard power, and now the gap grows even wider. The ergonomic carry handle evenly balances the engine for. oil to gas ratio for 1996 mercury 6 hp. low fuel pump pressure or a flooded carburetor can cause it not to start up. Problem: My 2006 5 HP Mercury Outboard started easily and idled perfectly first trip this year. I then went to give it full throttle again only to have. The only way top keep it running, after some starting fluid was at full fast idle in neutral. Hi, I have an '82 200hp mercury outboard that starts fine, and runs great up to 3000 rpm, but that is all the rpm I can get out of it. Every time i take this boat out, the same thing happens when trying to start this motor (Mercury 75hp). After this the engine won't go over 3000 rpm no matter how much throttle is added. Don't let these common outboard motor problems—which may be easy to fix—ruin with modern outboard motors that crop up again and again. That makes sense because a symptom of a spun hub is that as you increase power, the engine will start to rev, but the boat won't go faster (because the hub is spinning). 1987-1989 Mercury Mariner outboard. Approaching jetties, moorings etc at ramming speed or dead engine was not without its excitement. Mercury 150 4 stroke (2014) won't turn off after installing new battery. So the issue at the moment is that it won't rev up over 2000 rpm while under load. The information provided on these pages is correct to the best of my knowledge, however the MasterTech makes no warranty, express or implied, regarding the use of, results of, or liability created from, application of this data. A build-up of this will gradually restrict the size of the carb's main jet, which means the motor won't receive all the fuel as it needs. What is the max RPM of the Mercury 115 hp outboard?. However, they don't always fire right up when you try to start them. Get those carbs cleaned and back together, then get a Mercury Marine OEM service manual and a Fluke meter and do the tests by the book. The 25MH delivers consistent, easy starting, crisp throttle response, increased fuel economy, and outstanding overall performance. Has your motor sounded different lately? Has it been harder to start for no apparent reason? Has the amount of water coming out of the tell-tale changed?. Replaced plugs, cleaned carburetors, good gas, checked choke throttle linkage. Hey Guys, I have a 1997 Merc 4-stroke 50 hp tiller motor and while out fishing this past weekend, I hit some rough water (not sure if this even has anything to do with it) but was going full speed hit the waves then I reduced the speed, until calmer water. I have a 2004 Quicksilver 460 with a Mariner 40hp 2-stoke from the same year. But more often than not, after this treatment the tell-tale will be spitting water again. If your Mercury is 2006 or earlier I'd suspect this. Hi guys am seeking help with my 1997 Mercury 2stroke 9. My next step is to grab an inline spark tester and check for spark to try and Eliminate as many issues as I can. Then when I go to load it on the trailer it just bogs out with very little power. The 4 blade prop runs a little under 6,000 RPM at Full Throttle. I have a 1982 mercury 80 hp outboard motor. I have not picked it up yet to ascertain that the problem is solved but am told it is running well. Luckily there are some common reasons outboard engines act up. i have a Chris craft amerosport 230 it had a 305 in it i installed a new 350 mercruiser with an alpha 1 drive. I then started the outboard but there was no change from Tuesday and it still idled rough and would not rev up in gear so I returned to . I turned the ignition and the alarm stopped and motor started up. oil mix ratio for 1990 mercury outboards. it just bogs down and becomes unresponsive and wont rev over 3K RPM. Installed new carb, same problem. 2017 Mercury 115 HP EFI 4 stroke MERCURY,,Mercury,115 HP EFI 4 stroke,115 HP EFI 4 stroke,Mercury 115 HP 4 stroke outboard motor. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. I am having a problem with my 2005 ETEC 90HP outboard (blue style). Maybe it's just one of your engines (like it's trying to carry all of the load or won't catch up with the other one ?? It doesn't matter, if you have dark . Newer, fuel-injected outboards can have as many as 12 of these filters—two or three primaries and one or more for each fuel injector. At times, the wires will cross. Mercury outboards are one of the most popular outboards on the water. Remember to check for a spark on both of the 25 HP Mercury boat motor cylinders. The fuel air mixture screws on the side of the carburettor are marked H for High for the engines high speed adjustments and the L means Low for the engines low speed adjustments. Brought it home and hooked up the ears and it worked fine, went to. 8 automatic she dont go over 20 mph and wont shift out of second and only goes to 2-2 1/2 rpms 3000 RPM ~ 100-105 KMPH (Earlier. timing is retarded by up to 8 degrees and fuel flow is enriched by up to 15% until the sensor output is reduced below the threshold level. Here are 10 reasons and fixes to help prevent lack of fuel to a 2-stroke engine. I moor the boat in a private harbor but over the past 2-3 weeks the water levels have dropped and for. Either the lift pump has failed, the boat is out of fuel or there is an air leak or blockage somewhere in the fuel lines running fuel from the tank to the engine. The fluid level should be even with the bottom of the fill hole. Black Max (10 1/2 x 13") MERCURY RH Propeller, 48-816704A45. Now today the RPM’s would not go back down at all. Replaced that and it was fine again. Watch our Yamaha outboard lower unit disassembly video below. About Outboard Up Rev Won Mercury T. Cleaned carb and replaced, same problem. I can't tell if the carbs are loaded up or if there is some kind of spark advance that is not functioning. part: 34670-2 prices Specifications 34670-2: manufacturer part number: 34670-2. When I put it in gear and take the pontoon boat out it will only rev up to 2500 rpm's. oil pump 1996 mercury outboard 175 hp. Search: Mercury Outboard Won T Rev Up. Tangled Propeller If your outboard motor will not throttle up, the issue may be as simple as a tangle. because the way I understand it, it will not allow the engine to rev up. They are effective only up to a certain distance and height with respect to the fuel tank level because the. An outboard motor shifter and throttle control is the unit that controls the amount of throttle or speed of the outboard motor. So, we gotta know the reasons for which a bot engine might not reach operating RPM. 1983-1986 Mercury Mariner outboard. It hits a certain rpm and just starts surging like in the video. Tangled Propeller; Poor Gas Quality; Clogged Fuel Filter; Fuel Hose Replacement; Faulty Impeller; Bad Spark Plugs; Malfunctioning Fuel Pump. Mercury simply changed the design and put the sensor on a 45-degree. Outboard manufacturers have recommended RPM ranges for their specific models. Everything from fouled or corroded spark plug wires to debris in the gas can cause sputtering or loss of power. de 135 & 150 Hp V6 Mercury Optimax. Yesterday it started up fine we headed off 5 mins down the lake at speed and started to troll. Mercury produces an extensive line of outboard motors. 2001-2002 Mercury 115 HP Service manual application: Mercury Outboard motor 01-02 Mercury 115 HP (115HP) EFI (Electronic Fuel Injection) outboard engine. Use a gearcase pressure tester to build up pressure in the unit and spray the seals with some soapy water to reveal leaks that you can't see. Flint99, pulled '81 Johnson 70 off transom yesterday. In the photo below of my instrument cluster, I was never able to get the engine over about 2300 with the throttle fully down. 90 hp 2014 Mercury outboard EFI, Starts and revs for up and down for a few or it will stick closed, and the engine will not idle. Replaced the ignition module drove perfectly for a day then. Mercury 5HP 4-stroke outboard engine from Bridgeview Marine. Another issue may be that fuel line is clogged and fuel isn't reaching the engine. There's a few things you need to know before they'll turn over. Select Mercury Outboard Motors Models Below A leading name in marine engines, Mercury is recognized for producing top-quality outboard motors as well as the MerCruiser line of inboard engines. Check the black and yellow wires if there is no spark. So I had my motor serviced a few weeks ago its a 1990 Johnson vro 200hp oil injected 2 stroke. So I basically idled around the lake for the tournament the whole weekend. I opened it up to get the boat on the plane (approx 40kmh) which it did and it was running great. Initially it had the problem of not being able to go above . 2003 Yamaha 90 HP Outboard Won't Rev-up passed 2,500 RPM! Has Good: Spark, Compression, Fuel and Clean CarbsThe fix to this problem was a bad fuel pump di. 5 outboard engine is a great choice of power for canoes, small tenders and inflatables boats. Try replacing the temperature sensor with the Tan and White/Black wire. The boat will start and go into gear but will not accelerate Is the engine not able to rev up because it sputters/dies OR is there . 5 to 350 horsepower for more than 75 years, though the company's first motors did not have as much horsepower as some of its current motors. 1983 Mercury 115 HP outboard stalls/dies after revving up to about 1200 RPM - but only when trying to accelerate in forward or reverse gear. [I] cranked [the Mercury 150-HP Black Max] and [its cooling system confidence] water stream [was] fine. Took the boat out this morning motor turned over right away but idled for a 30 seconds to a min jumping between 500-900 rpms, sputtering at times then died and could not get it restarted. According to earlier, the traces in a Mercury Outboard Wiring Diagram Schematic signifies wires. Although an excellent marine engine will not prevent you from forgetting to fill up your gas tank or accidentally draining the battery by . I'm missing a third of the speed. Mercury outboard won t rev up - ortungs-app. Quick planing means more fun for skiers and tubers. After three or four tries if there’s still no flow, blame the impeller and call it a day. Pretty certain that I read in the SELOC manual for my Mercury 90HP 4-stroke that it is not recommended to run the motor above idle RPM's while on the hose/muffs because it can result in a "runaway prop or engine overspeed. Replaced (ever so slightly leaking head gasket in lower cylinder) and checked compression. Battery voltage is above normal limit. When the throttle level is pushed forward, it opens the engine throttle in the outboard, which means that more air and fuel. Mercury Mark Outboard (1953-1959) Mercury Kiekhaefer K Outboard (1947-1952) Mercury Racing Outboards. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. In gear it will run at around 2000 rpm, and occasionally rev up to 3-4000 rpm for a sec, and die back down to 2k. 1977-1989 mercury mariner outboard repair service technical maintenance manual. I eased off the trottle to a speed of around 5-10km on the river and after about 5 mins I felt the power drop in pretty much exactly the same way when the first CDM failed. So I took my service manual and started following the troubleshoot steps. The detonation control system actually acts as an ignition advance module, when knock occurs it takes away the advance. MERCURY Outboard Motor Fault Codes. My Mercury 5 hp outboard is acting up. mixture mercury two stroke outboard motor. This is the best Mercury Outboard Forum on the internet, it's yours! If you own a Mercury Outboard. owner manual for mercury 150hp 1997. Mind you it revs freely out of gear right up there to 5,000-RPM. Starting from idle when I hit the throttle to max, it will get up to ~ 1500 RPM and just bogs out. DF70 Idles great, but will not rev up. And the part number of the stator that Merc gave (832075A21) based on my serial number and the color does not match up with my cheesy CD. For that you'll need to purchase or make an adapter for your voltmeter. My 60hp Mariner 1984 will start and idle ok but dies whenever I advance the throttle past 1/2 way. Today's outboards are a big step forward from the units the major outboard makers produced just 10 years ago. May 21, 2007 at 4:04 pm #1254866. I have seen a mechanic revving up a 50hp mercury on the muffs, When flushing with just the hose the motor doesn't get up to temp and the . However, it does not mean connection between the wires. I loved the idea of efi and the light weight. If it isn't, it will cause your engine to become fuel starved, run rough, and eventually stall. Mercury Mariner Won't Accelerate: RPMS Go Up · 1. 5hp outboard motor features a larger carburetor for increased performance features that set it apart from other outboards in the same class. would suck up into the carburettor) as it would eliminate whether it's a . - Drop some 2-stroke oil down the spark plug holes, and make sure it turns over freely. If, at any time, you see voltage appearing on the meter, there is a problem in the harness or ignition switch. It will rev up to 5500 rpm's when in neutral out of water. Ignition timing will not advance if: a. then ill tilt it till i get some better speed, and i dont have a spun prop, I think air gets down around my prop some times and the prop cant get a bite of water. The bearing rollers can beat the hell out of the rods and journals when there's no load on the engine. - 2001, Mercury Marine Page 1 of 26 INSTALLATION MANUAL 25, 30, 40, 50 and 60 HP (4-Stroke) NOTICE TO INSTALLER: After completing assembly, these instructions should be. At the dealership we sold a 15 Mercury to an older fellow, (brand new) we installed it on his boat (Gheenoe we were also a dealer for them) along with a tach and an hour meter. This is the most comprehensive service, maintenance, and repair manual on the Mercury outboard motors that you will find. No, I didn't toast my new boats outboard already Was just giving it a bit of a tune up today and it got me wondering. Take a look at my recent post on my Mercury 8HP. Sierra International Arctic 4 Gauge Outboard Set Includes Speedometer, Tachometer, Voltmeter & Fuel Gauges. And when I put it in neutral I can throttle up full power without any hesitation. A simple issue may be that the spark plugs need replacing. The only way for me to get it to go back down was to shut the motor off put it in neutral and start the motor back up again. 150 Mercury Mariner 1988 Magnum. Review (MPN # 34670-2 for sale) MERCURY Neutral Warm Up Lever compatible with MERCURY MARINER. If you have a two-stroke outboard motor, you must add oil to the fuel to. A boater who isn't sure what the manufacturer's recommended RPM range is for his or . Some smaller or older outboards may not even have one. The Boating Forum - merucy 90hp two stroke wont rev up? - trybal, i read that as well while researching this engine, and I do have a marine . Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. changed … Mercury 4 stroke 25 efi 2010 Not rated yet wide open rpm drops as engine warms up. Mercury verado 200 won't rev past 3000rpm what could be the. They are the same outboard engine setup as they were co-manufactured. That pump blows out into the engine from the back where you can't see a problem and dumps fuel into the oil. To get the most accurate result from the WOT RPM test, there are a few things you need to do to ensure the data from the wide open throttle test is as precise as. Categories > E-TEC Service & Parts > ETEC 90 won't rev up (safe mode?) I am new to this forum and it is good to find one dedicated to ETECs. yahama outboard engine surges while running. Top boat manufacturers prop their outboards with size and pitch that allows the boat to run inside the recommended limits. You should start to hear it pop, just keep pulling or kicking and holding it wide open until it starts, then rev the engine a bit to clean it out and keep it running, then warm it up properly. Drivetrain No Longer Connected to Wheels · 4 . Return to port Immediately ‑ Service engine. It wasn't used for a good while and must have got some rain water or moisture in and the needle float valve corroded. It has new fuel pump and new filters. Goin down the highway all of a sudden it does a lil jerk I loose all power to the accelerator won't rev up and it dies pull over won't start next day it fired right up. 9hp outboard it runs great in idle and reverse but as soon as you click into forward as you increase speed it'll kick in but then start to decrease speed after about 10 seconds but sometimes will run fine for 10 minutes or so but then it redu. Prop wont spin when outboard is in gear (motor, engine, Mercury) User Name: Remember Me: Password start it up and put it in gear but don't rev up to much until you get it into the lake. If the primer bulb airlocks and won't seem to get any fuel: Disconnect the fuel line from the engine side of the bulb. Superior fuel efficiency across the powerband. Find out your outboard or sterndrive's WOT rating. 7 Reasons Your Outboard Will Not Throttle Up and How To. 9 4 stroke kicker became difficult to start and impossible to keep running at low to medium idle speed. 70hp johnson outboard won't turn over. I took the cover off of the motor and can see that by moving the throttle, it is moving the linkage back on the motor fine, it just won't rev up. standard factory warranty and a Mercury Product Protection plan can give you up to eight . I bought a bayliner with a Mercury 125 new in 2003 (it was a 2001 125hp elpto). I have a 1996 115hp mercury tracker motor. Starts great and ildes great and will even run great at low RPM, but when you try to accelerate the engine falls flat on it's face. Problems with the delivery of. Symptoms beforehand were the same as yours. Has anyone else run into this? 1994 135 Mercury V6 Black Max. This troubleshooting information is meant to help trace and correct faults relating to the throttle position sensor on 2000+ Mercury 150 175 200 horsepower EFI engines with a starting serial number of 0T409000 and above. Motor idles, but won't accelerate Post by Captain Ahab » 28 Mar 2012, 08:31 Gramps50 wrote: I was having some isues with my 20 hp Mercury and it turned out that it was sucking air and causing problems, my case it wouldn't idle, would be hard to start & finally it dies while backing up and would not restart. But when I power up, the motor sags and cuts out unless I power back down. Why does my outboard stall? Your outboard may be stalling & running out of fuel due to three issues. Motor usually starts OK and idles fine and will rev up to h … read more. I have a 1999 225 hp Mercury, carbureted outboard that frequently won't rev up under load. Features: If the customer is complaining that the engine won't rev up and shakes real bad, the S. About Up Rev Outboard Won Mercury T. Symptoms were it ran reasonably high revs but was prone to cutting out etc. Crank the motor to see if there is a spark. Discussion Starter · #1 · Jun 16, 2013. After the first time it refused to run over 3000 rpm I added 8 ounces of Sea Foam, 3 ounces of Startron by Staybrite, and have replaced both fuel filters. Mercury Outboard (1960 & Up) Mercury Accessories & Kits. Outboard engine RPM's are lower when they are in gear. The first thing to check before anything else is the mixture screws. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. Now the thing is if i keep pushing the choke it will rev up to about 5000 and seem to run somewhat normally. We will cover the primary occurrence of the engine under load first. This engine has 16 hours on it and I have a parts engine with 268. I have spent approx 30-40 hours on the lake. Mercury 75 HP 75XD 2-Stroke Outboard Service Manual. An outboard motor is cooled by water that is picked up through If this switch is not in the proper position, the engine will not start. When I go to get on plane it struggles really bad but once on plane it runs 67mph with plenty of power. When I try to put it into reverse it makes a loud clicking sound inside the control assembly. Just recently I’ve had my Mercury optimax sitting in neutral only to have the RPMs increase. I have checked all spark plugs and number 5 was black with carbon/oil I then changed the coil, . Location: box this used part was in good working order when removed from the engine neutral warm up lever mercury mariner outboard. Something about the prop running in the air at high RPM's without water for resistance against. I changed the fuel/water separator and the inline fuel filter. 40 hp mercury outboard will not idle. Home › Forum › Ask A Member › 1951 Voyager (Champion) 2VA wont rev up This topic has 2 replies, 2 voices, and was last updated 6 months, 3 weeks ago by Kevin Albers. Mercury Marine, based in Wisconsin, has been making Mercury outboard motors in two- and four-stroke versions ranging from 2. i have a 2005 50HP mercury 2 stroke , same problem. If there is a spark, there is a good chance that the ignition is not the problem. Brought to you by Barnacle Bill's Marine Supply. 22 Add Mercury outboard won't start after warmed up. Fuel - bad fuel condition Propeller - the propeller blades might be damaged or knocked Pump or pressure - problem with the fuel pump, culinder pressure and vacuu In modern marine gasoline motors, the RPM usually goes up to 4800-6000 at full throttle. Now for the fix: I pulled the carburetor and took apart for cleaning with. The unusual 2 + 2 cylinder configuration was not explicitly mentioned, but I think it is safe to assume the 115-HP uses it. I took it to a reliable marine mechanic and I water . The engine will hesitate & sputter but stays @ 3000rpm. I have 2004 mercury 125 hp outboard 2+2 motor I've replaced the accelerator pump,check values rebuilt the fuel pump,all new fuel filters,fuel bulb and line,new plugs,rebuilt the carbs did a compression test,marked the prop to see for a spun prop,no clogged exhaust ports still having issues trying to get up to speed at 1800 rpms you can feel the. 5 mph trolling speed and it runs a little rough while trolling and if i go any slower it will stall and while trolling i have to hit the choke every 15min or it will stall or as it feels like its gonna stall i throttle up a hair. Midsection & Trim Tilt Mercury. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Mercury verado 200 won't rev past 3000rpm what could be. 5 mph trolling speed and it runs a little rough while trolling and if i go any slower it will stall and while trolling i have to hit the choke every 15min or it will sta. Mercury 75 HP 2-Stroke Outboard Service Manual. Replaced exterior tank, tank line w/bulb, filter and all interior gas. All the cylinders have pretty similar compressions, tried 2 different tanks of fuel so don't think it is the actual fuel or the fuel lines but will get some additive and try that. Mercury 135hp v6 will not rev past 5000rpm. Bad news for the engine and a mess to clean up. If your outboard motor isn't running at its best, check the fuel vent on your portable tank to make sure it's open. As you might expect, Mercury isn't giving these engines away. Got the dinghy out for the first time yesterday and stuck the Mercury 5HP on the back which has worked wonderfully for 5 years and it ran very fast - out of gear Cleaned the float chamber and adjusted the idle speed but as soon as I put it into gear the engine would die. [I] took [the boat] to the ramp. I got the engine professionally serviced earlier this summer after purchasing the boat and it was running perfectly fine. Whether you pilot a small fishing boat or a party on a big pontoon, there's a Mercury FourStroke that fits the bill. The main thing is that you don’t want to burn up the rubber impeller and you don’t want to overheat the engine. Unfortunately, most of the 40-pages of the 2004 Mercury outboard motor catalogue were devoted to the OptiMax motors, and only a single page was provide for the classic carburetor two-cycle motors. 1988 mercury outboard won’t go into reverse? Bit of a stumper,I just purchased a boat with a 1988 mercury 100 hp motor on it, I had him hook up the ears on the motor and tested it. It seems at times my outboard won't rev up to full rpm at times and almost like it goes into a safe mode. I've replaced fuel pump diaphragm and check valves, replaced the … read more. Outboard Motor Manual Tilt and Lock. There are several methods to troubleshooting a stalling outboard engine. This involves pulling the carrier out of the lower unit. It's common for older outboards to have this mechanism damaged or missing and it is really handy to have one working properly. Like all mechanical equipment, Mercury motors can exhibit issues, ignition problems being some of the most. In neutral, it will spool up no problem. Its the oil sensor in the tank like the man says above. How To Prime Up Fuel When Primer Bulb is Air Locked. Let’s take a look at seven reasons why your outboard won’t throttle up and how to fix them: Tangled Propeller; Poor Gas Quality; Clogged Fuel Filter; Fuel Hose Replacement; Faulty Impeller; Bad Spark Plugs; Malfunctioning Fuel Pump; 1. It cranks and acts like it wants to start, but it will take many turns of the key before it actually fires up (sometimes it will start up but only stay running for a few seconds). Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. I just changed the high pressure fuel pump on my 1997 200 mercury efi and it now cranks right up. - WD40 sprayed around key electrical bits, check wires etc. Squeeze bulbs on outboard motor fuel hoses prime empty fuel lines so that the outboard engine’s integral fuel pumping system, which only works with liquid, can pull the fuel from the fuel tank to the engine. and when you do important thing to note. The engine was used in freshwater only. It idles good and revs up good in neutral and out of water. Disconnect the kill wires from the CD and connect a DC voltmeter between the kill wires and engine ground, turn the ignition switch on and off several times. I can't start my motor when not in neutral any ways because my . Your eyes, ears, and nose are your best friends when it comes to diagnosing mechanical issues. The water is just for cooling and it won't get that hot just starting it and putting. Mechanic's Assistant: Sometimes boat issues seem like they'll be really complicated, but end up being easy to fix. 1988 mercury outboard won't go into reverse? Bit of a stumper,I just purchased a boat with a 1988 mercury 100 hp motor on it, I had him hook up the ears on the motor and tested it. When motor is trimmed full down its extremely slow and sluggish and then I start trimming it up so it will pick up speed. First, you should lot run your engine up to 5000 rpm's without it being under load. A CDI-brand replacement will fix that for good! Resistance checks alone might tell you but you may have to check voltages while it's running.