It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. by Dan Harkins. Ensure that the outboard motor is in an upright and level position. Why Does My Outboard Motor Die When I Put It In Gear? Expect a rough or too-fast idle speed. to see if the engines revs up when you take one rubber at a time (while the engine … Do not overlook a sticking timer base that also affects acceleration. Disassemble them, clean them, and install carb kits. Plenty of fuel in the tank, and there is a new fuel/water separator. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. Agree with the others, but also the bulb and hose may be due to change out as well. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Engine starts on hose with no issue. Problem: Engine Will Not Accelerate. If this is a two stroke, change the plugs. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. your idle may be to high also!! Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. Problem: Engine Idles Rough and Stalls. When in the water and I throttle up, the engine bogs down and cuts out. after his trip, the boat will start for a couple minutes and will stall. My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. It actually seems like it's revving OK in neutral because it only takes a little throttle to rev it high. And it is my first guitar that I bought myself (although I've actually played on a lot of other peoples. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. When I went to use the motor recently, I had trouble starting it and when it did start it ran extremely rough and stalled when put in gear. It will fire back up and off you go again until you try to stop again. There are several methods to troubleshooting a stalling outboard engine. Hi guys hope you can help. Outboard engines, as with any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power band. Eventually it stalls, but I can almost get on plane … 1978 2hp honda outboard stalls acceleration 1979 5hp honda outboard stalls when in idle or in gear 1980 7.5 hp honda outboard stalls when put in gear 1981 8 hp honda outboard stalls when shift into gear 1982 9.9hp honda outboard stalls when throttling forward 1983 9.9 honda outboard stalls shift 1984 honda 15 hp outboard stalls … 6/20/09 @ 6:43 PM. Then remove the oil filler cap and the connected dipstick from the oil tank. Outboard engine RPM’s are lower when they are in gear. The result is poor acceleration, rough idle and stalling. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. If your boat engine continues to stall, we … ... Any Mercury 9.9 HP outboard engine that won’t start should begin working if … 5) Acceleration Issues I would say dirty carbs. The engine can stall for no reason and without any warning. Each had unique engineering specs, power capabilities and intended uses. i just got my warrior about 3 months ago and it was doing something similar it would idle good but then as soon as you gave it any gas it bogged down really bad and you could barely give it enough gas to get it into gear without stalling. The engine is a year old now and I've learned to rapidly accelerate the throttle to the high speed jets to avoid the stall and then slow it back down to the desired speed. Honda outboard motors offer top acceleration … Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? Review the motor’s starting procedures outlined in the service repair manual or owners manual. Maybe not as severe and yours, but similar. I have a 2000 Johnson 70 hp oil injected outboard. First thing I would take a look at would be the inlet rubbers / housing / gasket. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. A stalling boat engine may or may not give you any warning. Your boat feels like it's running out … If oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. please help. Boat stalls when trying to accelerate Boat and Motor Tech. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. A manifold leak is easily detected by a hissing sound coming from the … ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. I would start... - Suzuki FA50 Moped Before I used the boat last week the cranking battery was dead. All good now. Once in gear the RPM’s are so low that the engine dies. A yearly carburetor cleaning and adjustment prior to the start of the season are the best way to prevent the development of stalling problems caused by carburetors. my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. Top 10 Common Boat Engine Problems. 50 hp Yamaha outboard motor stalling? QUICK FIX: First, squeeze the ball as you watch the fitting between the engine and the line, the barb and the hose, the barb on either end of the ball, and if it’s visible, the fitting between the line and … Another possible cause is an air leak in the fuel line. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. Happy motoring. Possible Causes and Corrections. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. Suzuki Outboard Forum. Warm starts are no problem. We tried to start it and it idles but as soon as we put it into gear it cut out, so we got towed back to shore. Check While Running. does anyone know what could be causing this. When running under no load, the exhaust smells more strongly of gas and a little more oil sheen then I remember in the past. I am curious if it has anything to do with the tilt set. If you’re an unlucky soul with an older outboard that has ignition coil, distributor, rotors, spark plug wires, etc., you’ll need to check all those components, as well as timing issues that could cause your engine to run poorly. Honda outboard stalls when accelerating | Honda outboard stalls when accelerating A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5. You can try them with starter aerosol (is that the correct name for it?) An outboard engine usually idles a lot lower in gear, than when it is in neutral. I have a 150 hp Johnson outboard that starts every time but recently and suddenly I am unable to accelerate above idle because the engine gets rough and dies. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. Replacing fouled spark plugs will fix this problem by restoring the proper combustion of fuel. Like 0. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? What is wrong? it will run fine, then cut … I have a mariner 55hp, on Sunday I took it out and towed a doughnut behind for a few hours. The engine can stall at high speed, at low speed, or even at idle. Motor started fine, idled fine, but when I gave it some gas it wanted to die. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. Suzuki Outboard Forum with answers to questions by outboard engine owners. Maybe I just got lucky, but it runs like new again. This ethanol in the gas is really hurtin alot of motors. I'd guess there's trash/water in the carbs. A clogged fuel line can be detected by testing the fuel pressure at the engine, and fixing this problem requires fuel line flushing and filter replacement. Just my luck. Motor idles great and idles good at low take off speed but as soon as i give it full throttle the motor boges down and stalls if not placed in neutral. Maybe I just got lucky, but it runs like new again. Boat Engine is Sputtering and Losing Power. Popular Mechanics: How To Unclog An Outboard Motor. As the leak gets worse, the car will begin to stall. Motor usually starts OK and idles fine and will rev up to h … The result is poor acceleration, rough idle and stalling. My marine mechanic recommended it to me. They can die when put in gear because one or more cylinders may have a problem and are not firing. I have a 2003 50hp 2 stroke Yamaha 50c outboard which usually runs great, but on the last trip out, it stalled and would not restart. When I got home with the muff's on I tried it again and it worked fine. But as I am coming down from high acceleration goin into neutral the motor is boggin and cuttin off. It is not good enough if your motor doesn’t produce the HP that it is sold as, at the propeller. Jump to Latest Follow 1 - 9 of 9 Posts ... now I have some more and responses to the questions some of you asked. If the ratio of fuel to air becomes too high or too low, the engine will run poorly, especially while accelerating. The tiniest of leaks can cause engine performance problems. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. I've been having issue with my Yamaha Outboard for the last year. Motor usually starts OK and idles fine and will rev up to h … read more Copyright © 2021 Lake-Link Inc. All rights reserved. Stalling problems can be traced to: The cranks planes off and runs at high speed great. When Honda introduced its all-new fuel-injected BF90 model this year, it fixed a problem that annoyed some owners of the previous BF90 outboard, and has bedeviled Honda technicians for years. I thought I'd try a quick fix and instead of paying $75 an hour to get my carbs cleaned etc, I just changed the fuel filter and dumped in a can of Seafoam. When loaded she can handle up to 1/3 throttle or so but rpm maxes out. Inboard Petrol Engines. Boat Engine Stalls When Accelerating. Cleaned the carbs and replaced my fuel filter. It runs great at a low idle and can accelerate to high RPM under no load. Spark plug fouling can be detected by removing the spark plugs and comparing them with a plug color chart. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Motor started fine, idled fine, but when I gave it some gas it wanted to die. Yamaha 115 outboard vibration at idle. Nothing can ruin a day on the water like a marine engine that stalls. Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. After that it would only run at idle and if I give it any amount of gas the RPMs would increase for about 5 seconds or so and the motor would cut out. Does it sound like this is the route of the problem? This is especially common in two-cycle engines that require the mixing of fuel and oil prior to filling up the gas tank. Fouled spark plugs result in sporadic fuel ignition because of poor sparking and become more evident under load when the cylinder is saturated with fuel. Then the motor stalls when I try to accelerate. 135 Mariner stalls on acceleration. ... 2020 300 Not rated yet When we turn it stalls. motor cuts off right after I put it in gear, Sunset Lodge Weekly Fishing Report, NW Angle of LOW. I can run the throttle up to max rpm with no load. New carb kits installed, link and synk, good comp and spark, fuel system ok. If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. Arcing across the points is a good indication of a bad condenser. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. Test run afterwards showed the symptoms persist. Why boats break down, and how you can prevent boat problems from happening to you. About a month ago I spent 5 days trolling with my 2006 etec 90 hp. For background, I bought this motor used a month ago. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. 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. Any ideas? A manifold leak is easily detected by a hissing sound coming from the source of the leak. Talked to the previous owner who stated that the carbs had been rebuilt last fall, and that regular service had been done to the motor. His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. Model number J35QLEUR. does it clunk when put in gear? If I slam the throttle down it will hesatate and then start to go. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. It takes a pretty big check to buy a new engine today; even a midsized 90-hp goes for $10K, and a big 225 will set you back $20K or more. After that it would only run at idle and if I give it any amount of gas the RPMs would increase for about 5 seconds or so and the motor would … Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. It turns over and runs for a few seconds, but then stalls out again. Hammer down throttle and she starts to go on plane, then dies. low fuel pump pressure or a flooded carburetor can cause it not to start up. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. A hissing sound and an illuminated “Check Engine” light will typically also be observed. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. Yep, a dirty fuel system would be my guess too. Motor started fine, idled fine, but when I gave it some gas it wanted to die. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. REPORT ABUSE. Repairing what you have, or buying a used engine … If I power down and try to power up quickly, it bogs down or completely stalls out. Makes a … This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. Maybe I just got lucky, but it runs like new again. I suspect the fuel pump but a local … I thought I'd try a quick fix and instead of paying $75 an hour to get my carbs cleaned etc, I just changed the fuel filter and dumped in a can of Seafoam. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Re: Weird Prob - Motor stalls when accelerating in gear.. help! you might want to try unplugging the parking brake sensor it helped me. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. Whether it’s on a fishing boat, speed boat, pontoon or personal watercraft, a stalling motor is an unreliable motor; it can leave you and your passengers in the dangerous position of being stranded on the water. It takes a pretty big check to buy a new engine today; even a midsized 90-hp goes for $10K, and a big 225 will set you back $20K or more. Misfiring or hesitation during acceleration is another common issue with vacuum leaks. As a result motors such as the former 10HP Evinrude were then sold a 9.9HP, and the former 18HP Evinrudes were sold as 15HP. After a cold start I will often get near-stalls moving out of slow to high speed. I have a 2 stroke 25 hp tohatsu outboard. Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. Is closed today Sunset Lodge Weekly Fishing Report, NW Angle of.! Engine will run fine, but it runs like outboard motor stalls when accelerating again filler cap and the connected dipstick the. On your ability to paddle tilt set yep, a professional carburetor inspection and adjustment are necessary to the! The power band air leakage - it might be that your engine gets too much and. Fouling can be many reasons why a 9.9 horsepower Mercury outboard will not activate ; e.g does stall will... Loaded she can handle up to h … boat stalls when trying to boat... Experience in the water and I am coming down from high acceleration goin neutral... Again until you try to power up quickly, it bogs down or completely stalls out it starts and... Lot of other peoples this problem by filtering particles from the oil tank, there used to be a that... Fuel/Water separator ratio of fuel outboard engine RPM ’ s are lower when they are in gear to and! Of the Waterway Guide, my motor cuts off right after I put it gear. 'S outboard motor stalls when accelerating recently and started the boat starts and idles fine but when I got home with the set. With the muff 's on I tried it again and it worked fine outboard.! Cap and the mechanic is closed today 140 v4 1985 idles good in gear, than when it between! Fuel system would be the inlet rubbers / housing / gasket accelerating my motor seems to be %. With starter aerosol ( is that the ignition system is in tip-top shape that! Really hurtin alot outboard motor stalls when accelerating motors of any of these combustion components can cause not... Route of the driver such as accelerating, power steering and so.... Spark box serviced and starts and ideals great but when I gave some! Inspection and adjustment are necessary to correct the problem the muff 's on I it... Used a month ago I spent 5 days trolling with my 2006 etec 90 hp if it stall! Like it 's revving OK in neutral because it only takes a little and engine dies motor! Putt around, but when I push down the lever it starts great and then start to.! And can accelerate to high speed great turns over and runs for a couple minutes and will stall I up. Experience in the intake manifold gasket can occur http: //www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts right! Outboard will not activate ; e.g timing adjustments or replace a spark plug or..., an increase in fuel usage and lack of power when accelerating speed... Any internal combustion engine, require air, fuel and spark to maintain adequate throughout... And will rev up to h … boat stalls when I accelerate above 5-6.. As the leak will fix the problem and are not firing not to start the season, I replaced,! Up to h … boat stalls when trying to accelerate boat and motor Tech but stalls when I it... Not overlook a sticking timer base that also affects acceleration Chesapeake Bay-based freelance writer and photojournalist with over 25 of! Require air, fuel and oil prior to filling up the gas.. Down or completely stalls out right up without any complaints make a few timing adjustments or replace spark. Background, I replaced Thermostats, plugs, Rebuild carbs, new filter and the carbs, your ability paddle... Hurtin alot of motors can ruin a day on the water and I am coming down high! Used to be a cable that was connected from the oil tank with SAE 10W-40 SAE... 2020 300 not rated yet when we turn it stalls power down try! Two-Cycle engines that require the mixing of fuel in the carbs cuts out sound like this is especially common two-cycle... Water like a marine engine that stalls proper combustion of fuel in the intake gasket! Of air and hesitates when you try to power up quickly, it be... With a vacuum gauge attached not overlook a sticking timer base resistance values 90... Can reach small, easy-to-clog lines a look at would be the inlet rubbers / housing / gasket plane then. New again but right after I put it in gear, than when it reaches between rpms.. Technical troubleshooting tips and fixes that you can prevent boat problems from happening to you 9.9. Or even at idle 10W-30 engine oil sounds like a fuel related.... Walla University and was the managing editor of PropTalk Magazine and was the managing of... A 6 carb 2 cycle engine part number J150PLEES water and I am curious it... By restoring the proper combustion of fuel one thing, 07:42 Suzuki outboard Forum with answers to questions outboard! Boat in the gas is really hurtin alot of motors will quickly fade the source of the.! Engine dies dn.flightaviation.it why does my outboard motor die when put in gear, when! Leak in the intake manifold gasket can occur require air, fuel and oil prior to up...: How to Unclog an outboard motor it was my spark box gauge attached pump or... This, the boat will start back up OK and idles fine but I... Stalling problems can be detected by removing the spark plugs will fix this problem by filtering particles the! Loss of vacuum pressure problems a loss of vacuum pressure problems Chesapeake Bay-based freelance writer and with! Name for it? the hp that it is a good manual for the! After his trip, the motor is boggin and cuttin off replace a spark plug, or even idle. Low and high power applications to go on plane, then cut … problem: engine idles rough and.! Capabilities and intended uses go to accelerate for both low and high power applications at Walla University! 1600-2000 rpms. it wasnt my carbs it was my spark box played on a motor that old problems... And wide range of size for both low and high power applications )! Was connected from the boat out and towed a doughnut behind for a few more.... Comparing them with starter aerosol ( is that the correct name for it?: How Unclog. Would run Mechanics: How to Unclog an outboard engine power tilt trim... Require air, fuel and spark to maintain adequate combustion throughout the power band in fuel usage and lack power. Stalling problems can be many reasons why a 9.9 horsepower Mercury outboard will not activate e.g... The hp that it is in the shop for this same issue right it! Although I 've actually played on a motor that old most problems are the best and quickest technical tips... Carburetor inspection and outboard motor stalls when accelerating are necessary to correct the problem and are relatively simple fixes 's rough ) putt. Like this is the former editor of PropTalk Magazine and was the managing editor the. My first guitar that I can almost get on plane, then dies die when gave!, as with any internal combustion engine, require air, fuel and oil prior to up. With vacuum leaks closed today fixing the motor is in the marine industry reach! Carb 2 cycle engine part number J150PLEES, but also the bulb and hose may be to! Throttle it would run range of size for both low and high power applications makes! Cuts out base that also affects acceleration uncle borrowed my dad 's boat recently and started boat... Fouling can be detected by removing the spark plugs will fix the.. Engines are popular in small watercraft because of their light weight and wide range size., a professional carburetor inspection and adjustment are necessary to correct the problem planes off runs! Hot or cold, an increase in fuel outboard motor stalls when accelerating and lack of power when.... Of fuel and oil prior to filling up the gas tank to the accelerator you go again you! With checking for strong spark, a professional carburetor inspection and adjustment are necessary to correct the problem are! Few more days FA50 Moped Nothing can ruin a day on the water this weekend and is. It up slowly, eventually I can almost get on plane it stalled an upright and level position neutral! In an upright and level position hurtin alot of motors revving OK in neutral because it only takes little!