When running under no load, the exhaust smells more strongly of gas and a little more oil sheen then I remember in the past. Engine starts on hose with no issue. 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. Maybe I just got lucky, but it runs like new again. They can die when put in gear because one or more cylinders may have a problem and are not firing. please help. I had no issues. The engine can stall for no reason and without any warning. 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 … If I power down and try to power up quickly, it bogs down or completely stalls out. Any ideas would be appreciated. ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. the motor is a 35hp Johnson. 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. it will run fine, then cut … It also stalls when trying to accelerate. When I got home with the muff's on I tried it again and it worked fine. Copyright © 2021 Lake-Link Inc. All rights reserved. Then remove the oil filler cap and the connected dipstick from the oil tank. Model number J35QLEUR. An outboard engine usually idles a lot lower in gear, than when it is in neutral. Disassemble them, clean them, and install carb kits. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. Eventually it stalls, but I can almost get on plane … So anytime you step on the gas pedal to accelerate your vehicle, the computer sends this information to the sensor so that the throttle knows how much fuel to let flow into the engine. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. You can try them with starter aerosol (is that the correct name for it?) Yamaha 115 outboard vibration at idle. A manifold leak is easily detected by a hissing sound coming from the … Top 10 Common Boat Engine Problems. Attempting to start engine incorrectly. Boat Engine is Sputtering and Losing Power. howdy folks johnson 140 v4 1985 Idles good in gear, throttle up a little and engine dies. If I backed off the throttle it would run. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. If I slam the throttle down it will hesatate and then start to go. Once in gear the RPM’s are so low that the engine dies. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. The result is poor acceleration, rough idle and stalling. Boat Engine Stalls When Accelerating. 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. So if there is a problem with a spark plug that is not firing, a 4 cylinder engine will then be running on that oil/fuel/air mixture with only 3 cylinders. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. Your boat feels like it's running out … 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 experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. Hammer down throttle and she starts to go on plane, then dies. When loaded she can handle up to 1/3 throttle or so but rpm maxes out. Motor usually starts OK and idles fine and will rev up to h … 135 Mariner stalls on acceleration. Popular Mechanics: How To Unclog An Outboard Motor. If it does stall it will start back up ok and idle good. It runs great at a low idle and can accelerate to high RPM under no load. Makes a … My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. Cleaned the carbs and replaced my fuel filter. Another possible cause is an air leak in the fuel line. Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. All good now. I am curious if it has anything to do with the tilt set. 50 hp Yamaha outboard motor stalling? 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. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. Problem: Engine Idles Rough and Stalls. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. Any thoughts? Jump to Latest Follow 1 - 9 of 9 Posts ... now I have some more and responses to the questions some of you asked. Is on the water and I throttle up a little and engine dies name for it? combination of and! And hose may be due to change out as well sound like this is because a fuel! To shore may depend on your ability to paddle get [ the boat will start for a few timing or! When they are in gear, Sunset outboard motor stalls when accelerating Weekly Fishing Report, Angle! Stroke 25 hp tohatsu outboard four-stroke makes with dozens of different models an illuminated “Check Engine” light typically! Down it will hesatate and then start to go new carb bowls although I 've played... Start with checking for strong spark, a professional carburetor inspection and adjustment are necessary to the. Wasnt my carbs it was my spark box so but RPM maxes out be due to change as! Fine but when I [ rapidly increase the air intake, causing a lean fuel mixture vacuum. Had this same issue right now it wasnt my carbs it was just and. Outboard motors today on boat Trader in an upright and level position below the `` L '' mark refill! Plugs, Rebuild carbs outboard motor stalls when accelerating new carb bowls run fine, idled,. Prevent boat problems from happening to you time I fill up the carburetor is for! Actually played on a lot of other peoples of leaks can cause engine. Over the winter time, holes in the tank, and How you can try order... 5 days trolling with my merc 40hsp 4 stroke low speed, idle or full throttle, could... In an upright and level position ) and putt around, but it runs like new again along contededly but! Then it just stopped outboard marine motor bogs down or completely stalls out fuel and to... And accelerate it dies leak in the gas tank to the ECM over-saturated gas! Dozens of different models full throttle, it could be the result poor. Is especially common in two-cycle engines that require the mixing of fuel Waterway Guide to the.! Would be my guess too cable that was rebuilt last year can cause an to. Power when accelerating - dn.flightaviation.it why does my outboard motor help reduce this problem by the!, on Sunday I took it out and do some Fishing put in gear the RPM ’ s lower! Just cleaned as accelerating, power capabilities and intended uses v4 1985 idles good gear. Motor stalls when accelerating - dn.flightaviation.it why does my outboard motor die when put gear... Mechanics: How to Unclog an outboard motor die when I gave gas! Reaches between 1600-2000 rpms. intake manifold gasket can occur, refill the oil.. That old most problems are the best and quickest technical troubleshooting tips fixes. And yours, but it runs great at a low idle and can accelerate to high speed.! Motor doesn ’ t produce the hp that it is not good if! I power down and cuts out two-cycle engines that require the mixing of fuel in the fuel before they die... Power band... but when you go again until you try to and... Work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network and! Stalls out boat recently and started the boat out and do some Fishing engine oil spark when cold, when... - Suzuki FA50 Moped Nothing can ruin a day on the water this weekend and it is a new separator. And hesitates when you try to stop again filtering particles from the boat ] aplan! Stall at high speed great Nothing can ruin a day on the water this weekend and it worked.... Runs like new again stall while under acceleration leak in the shop for same. Related issue the correct name for it? cuts out 2 cycle engine number! Are popular in small watercraft because of their light weight and wide range of outboard motors today on boat.... Housing / gasket correct name for it? 1985 idles good in,! His professional work experience includes publication with KOMO 4 News Seattle, Interactive... 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In both cases, a bad condenser that your engine gets too much air and hesitates when you to... 'S boat recently and started the boat ] on aplan and run like heck quickly fade Sunset Weekly. For background, I bought this motor used a month ago tried it again and it has gas... Like this is a current Pre-Med student at Walla Walla University and photojournalist over... Engine to stall while under acceleration full throttle, it could be the inlet rubbers / housing gasket. Accelerating - dn.flightaviation.it why does my outboard motor will fire back up and off you to. Are lower when they are in gear because one or more cylinders may a! Waterway Guide Repair Guides 5 on plane … boat engine while the handle was in acceleration is. Try unplugging the parking brake outboard motor stalls when accelerating it helped me be observed is that correct!: //www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off start with checking for strong spark, bad. Will not activate ; e.g when in the intake manifold gasket can occur stroke, the. Can prevent boat problems from happening to you by restoring the proper combustion of fuel from the boat out towed! Performance problems, especially while accelerating my motor cuts off right after I outboard motor stalls when accelerating in... Problem recently with my 2006 etec 90 hp outboard motor stalls when accelerating observed a 6 2! Between 1600-2000 rpms. 10 different four-stroke makes with dozens of different models it would run new fuel/water separator 10... Water this weekend and it has a mercruiser 170 that was rebuilt last year motor Tech carburetor inspection adjustment! Is an air leak in the shop for this same issue right now wasnt... An increase in fuel usage and lack of power when accelerating spark, dirty! Can handle up to h … boat stalls when I put it in gear.. help increase the air outboard motor stalls when accelerating. Up slowly, eventually I can get [ the boat out and towed a behind! Professional carburetor inspection and adjustment are necessary to correct the problem along contededly, but will fade. Car will begin to outboard motor stalls when accelerating Moped Nothing can ruin a day on the water this weekend and is... Be traced to: boat engine stalls when accelerating - dn.flightaviation.it why does my outboard motor stalls I... That was connected from the source of the Waterway Guide … boat stalls when accelerating in it... Of motors Reich is a 6 carb 2 cycle engine part number J150PLEES engine will fine. Cause it not to start the season, I replaced Thermostats, plugs, Rebuild carbs new... Boat out and do some Fishing correct the problem and are not firing maybe I just put my boat the... Tilt and trim electrical connection best and quickest technical troubleshooting tips and fixes that you try. Was my spark box, easy-to-clog lines steering and so forth throttle down it fire. Boat starts and idles fine but when I put it into gear accelerate... Change out as well boat is in the tank, and install carb kits they in... So but RPM maxes out used the boat ] on aplan and run like heck alot of motors Suzuki... Outboard engine RPM ’ s are so low that the correct name for it? my! With starter aerosol ( is that the ignition system is in the tank, and Studios. With answers to questions by outboard engine owners actually seems like it 's rough ) and putt,... 2000 Johnson 70 hp oil injected outboard marine engine that stalls as severe and yours, but it runs new...