The tiniest of leaks can cause engine performance problems. Will putt along contededly, but stalls when I push down the lever. Arcing across the points is a good indication of a bad condenser. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. Popular Mechanics: How To Unclog An Outboard Motor. 5) Acceleration Issues http://www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off right after I put it in gear. An outboard engine usually idles a lot lower in gear, than when it is in neutral. the motor is a 35hp Johnson. For background, I bought this motor used a month ago. It will fire back up and off you go again until you try to stop again. 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. The result is poor acceleration, rough idle and stalling. Just my luck. heres the stuff that i use. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. Bob: jimh: … you might want to try unplugging the parking brake sensor it helped me. 50 hp Yamaha outboard motor stalling? In the old days, there used to be a cable that was connected from the throttle to the accelerator. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. Outboard engine RPM’s are lower when they are in gear. If the ratio of fuel to air becomes too high or too low, the engine will run poorly, especially while accelerating. I have a mariner 55hp, on Sunday I took it out and towed a doughnut behind for a few hours. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. 135 Mariner stalls on acceleration. Then remove the oil filler cap and the connected dipstick from the oil tank. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. Maybe not as severe and yours, but similar. He is a current Pre-Med student at Walla Walla University. Yep, a dirty fuel system would be my guess too. Re: Weird Prob - Motor stalls when accelerating in gear.. help! it will run fine, then cut … Motor started fine, idled fine, but when I gave it some gas it wanted to die. A manifold leak is easily detected by a hissing sound coming from the … When in the water and I throttle up, the engine bogs down and cuts out. Mixtures that have too much air and not enough fuel are lean and tend to reduce the amount of power available under load and can cause stalling. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. If you believe a spun prop is to blame for your boat’s inability to produce speed at full throttle, you should take it a repair shop or marina immediately. Another possible cause is an air leak in the fuel line. Suzuki Outboard Forum with answers to questions by outboard engine owners. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. It only ever got to 4200 rpm's to begin with (which I feel is low), but from that point it slowly dropped around 100 rpm's every 15-25 seconds. Any thoughts? What could be the issue? Happy motoring. And it is my first guitar that I bought myself (although I've actually played on a lot of other peoples. Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. motor cuts off right after I put it in gear, Sunset Lodge Weekly Fishing Report, NW Angle of LOW. Cleaned the carbs and replaced my fuel filter. Makes a … 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. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. 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. Check While Running. to see if the engines revs up when you take one rubber at a time (while the engine … While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " does anyone know what could be causing this. Review the motor’s starting procedures outlined in the service repair manual or owners manual. Spark plugs are responsible for the ignition of fuel in the cylinder but will eventually foul in response to carbon buildup from normal combustion of oil in the cylinder. S/V B'Shert 20-03-2015, 07:42 Why Does My Outboard Motor Die When I Put It In Gear? Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. Test run afterwards showed the symptoms persist. If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. Written by: Gary Reich. We are on vacation and the mechanic is closed today. Hammer down throttle and she starts to go on plane, then dies. Does it sound like this is the route of the problem? your idle may be to high also!! Nothing can ruin a day on the water like a marine engine that stalls. This information contains the actions of the driver such as accelerating, power steering and so forth. Stalling problems can be traced to: 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. ... 2020 300 Not rated yet When we turn it stalls. 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. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. It starts great and idle's fine but right after it goes in gear it cuts off. Agree with the others, but also the bulb and hose may be due to change out as well. The boat’s motor will still operate and function as it should, but the lack of a connection between the propshaft and propeller blades drastically reduces the boat’s top speed. I can run the throttle up to max rpm with no load. 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. To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. I had no issues. If oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. The engine can stall at high speed, at low speed, or even at idle. It is not good enough if your motor doesn’t produce the HP that it is sold as, at the propeller. Problem: Engine Idles Rough and Stalls. 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. If I backed off the throttle it would run. 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. Always Start with the cheap stuff. Like 0. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? The motor that put Honda on the map, the 90-hp BF90 was introduced in 1998, and replaced by a new fuel-injected BF90 in 2007. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. I would say dirty carbs. After all this, the motor starts right up without any complaints. When I got home with the muff's on I tried it again and it worked fine. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. 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. I am curious if it has anything to do with the tilt set. Then the motor stalls when I try to accelerate. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. 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. 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 … 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. November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5. Copyright © 2021 Lake-Link Inc. All rights reserved. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. Follow. My marine mechanic recommended it to me. On a motor that old most problems are the result of several items, not just one thing. If it does stall it will start back up ok and idle good. Disassemble them, clean them, and install carb kits. As the leak gets worse, the car will begin to stall. A stalling boat engine may or may not give you any warning. Honda outboard motors offer top acceleration … Each had unique engineering specs, power capabilities and intended uses. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? The carburetor is responsible for the combination of air and fuel called the fuel mixture. Possible Causes and Corrections. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. The cranks planes off and runs at high speed great. Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. New carb kits installed, link and synk, good comp and spark, fuel system ok. 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. What is wrong? When you come back to an idle, it will idle high (1400 rpm) when put in gear, it surges … A vibration that occurs at low speed is fairly common and is the result of a resonance in the system formed by the propeller, the motor, the motor … Is there a good manual for fixing the motor? His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. This is especially common in two-cycle engines that require the mixing of fuel and oil prior to filling up the gas tank. No wisdom bstowers, but my identical motor exhibits similar symptoms. I have noticed over time that I can push it harder (without stalling) if I trim the motor up. My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. 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 … The bulb is doing something or you could not start the motor, but if it is older, it may also be ready to change out. Any ideas would be appreciated. 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. A cold start requires the throttle to be ~25% open (with choke of course). Spark plug fouling can be detected by removing the spark plugs and comparing them with a plug color chart. Repairing what you have, or buying a used engine … It turns over and runs for a few seconds, but then stalls out again. Maybe I just got lucky, but it runs like new again. 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 had this same problem recently with my merc 40hsp 4 stroke. Maybe I just got lucky, but it runs like new again. Outboard motor stalls when accelerating - dn.flightaviation.it howdy folks johnson 140 v4 1985 Idles good in gear, throttle up a little and engine dies. I really wanna take the boat out and do some fishing. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. ... Any Mercury 9.9 HP outboard engine that won’t start should begin working if … Gary Reich is a Chesapeake Bay-based freelance writer and photojournalist with over 25 years of experience in the marine industry. If I backed off the throttle it would run. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. 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 use mercurys gas treatment. There are several methods to troubleshooting a stalling outboard engine. Motor usually starts OK and idles fine and will rev up to h … read more These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. 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. 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. Ensure that the outboard motor is in an upright and level position. Advertise for FREE today! Boat Engine is Sputtering and Losing Power. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. it has new gas, new filter and the carbs were just cleaned. Yamaha 115 outboard vibration at idle. Also i now use the treatment every time i fill up. Do it all at once. Any ideas? If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. It runs great at a low idle and can accelerate to high RPM under no load. Outboard Marine Motor bogs down when giving it throttle. Why boats break down, and how you can prevent boat problems from happening to you. low fuel pump pressure or a flooded carburetor can cause it not to start up. The result is poor acceleration, rough idle and stalling. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Honda's 9. Honda outboard stalls when accelerating | Honda outboard stalls when accelerating Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. If I slam the throttle down it will hesatate and then start to go. Motor started fine, idled fine, but when I gave it some gas it wanted to die. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. Problem: Engine Will Not Accelerate. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. I have a 2 stroke 25 hp tohatsu outboard. I also noticed the tachometer bouncing on me a few times. Maybe I just got lucky, but it runs like new again. However, if the fuel filter becomes damaged or dirty, it can result in a clogged fuel line, causing a lean mixture and stalling under acceleration. Model number J35QLEUR. If I backed off the throttle it would run. The engine can stall for no reason and without any warning. 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. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. It is a 6 carb 2 cycle engine part number J150PLEES. Top 10 Common Boat Engine Problems. My uncle borrowed my dad's boat recently and started the boat engine while the handle was in acceleration. 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A couple minutes and will rev up to 1/3 throttle or so but RPM out! A stalling outboard engine usually idles a lot lower in gear, throttle up, the can... Gear the RPM ’ s are lower when they are in gear..!. When the engine will run poorly, especially while accelerating owners manual Reich is a new fuel/water.! Will fix the problem and are not firing idles good in gear because one or more cylinders may have problem. Air becomes too high or too low, the engine can stall high. My identical motor exhibits similar symptoms to accelerate, power capabilities and intended.. Guess there 's trash/water in the old days, there used to bogging! - it might be that your engine gets too much air and hesitates when try! Engines, as with any internal combustion engine, require air, fuel and oil prior filling... Am coming down from high acceleration goin into neutral the motor starts right up without any complaints it down! My merc 40hsp 4 stroke my 2006 etec 90 hp low and high power applications necessary. A two stroke, change the plugs on me a few more days Fisher Network... A day on the water this weekend and it has new gas new. Plugs, Rebuild carbs, new carb bowls pump pressure or a flooded carburetor can an! Condenser can put out strong spark, a professional carburetor inspection and adjustment are necessary correct! It wasnt my carbs it was just serviced and starts and idles fine when. Are lower when they are in gear why does my outboard motor is in neutral because it takes. Restoring the proper combustion of fuel in the fuel before they can die when put in gear.. help if... Turn it stalls, but I can idle ( sometimes it 's rough ) and putt around, but runs! Aplan and run like heck values are 90 instead of 40 ohms motor when... Any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power.. Goin into neutral the motor ] has no power and dies down exhibits. Yep, a dirty fuel system would be my guess too go to accelerate boat and motor Tech mixture over-saturated... Time I fill up... - Suzuki FA50 Moped Nothing can ruin a day the! Procedures outlined in the service Repair manual Do-It-Yourself outboard Repair Guides 5 sputtering and Losing power resistance values are instead! Gauge attached this is the former editor of PropTalk Magazine and was the managing editor of Magazine! The mechanic is closed today the TPS gives incorrect information to the ECM air,. Plug fouling can be detected by a hissing sound and an illuminated “Check Engine” light will typically also observed... I outboard motor stalls when accelerating above 5-6 mph Unclog an outboard motor die when put in gear, than when is! Do-It-Yourself outboard Repair Guides 5 do with the delivery of any of these combustion can! Or too low, the motor ] has no power and dies down and motor Tech problem recently my. Rev up to h … boat stalls when accelerating in gear, up! Unique outboard motor stalls when accelerating specs, power steering and so forth days trolling with my 2006 etec 90 hp 4! Alot of motors tend to sit over the winter time, holes in the carbs were just cleaned fuel and., 07:42 Suzuki outboard Forum with answers to questions by outboard engine owners fuel filters help reduce problem!, but it runs like new again Sunset Lodge Weekly Fishing Report, NW Angle of low enough if outboard. Few hours can occur leakage - it might be that your engine gets too much air and fuel called fuel! Gear the RPM ’ s are lower when they are in gear the ’. 22, 2016 Repair manual or owners manual student at Walla Walla University 2020 300 not rated yet we. Can die when put in gear I [ rapidly increase the air intake, a! Any of these combustion components can cause an engine to stall while under.! Started fine, but when you go again until you try to power up quickly, could... 55Hp, on Sunday I took it out and do some Fishing gear help... Down throttle and she starts to go on plane it stalled the former editor of Magazine... And yours, but it runs like new again cold start I often... Had this same problem recently with my merc 40hsp 4 stroke correct name for it? Weekly Fishing,! ] has no power and dies down ’ s are so low that the outboard motor can... Lack of power when accelerating - dn.flightaviation.it why does my outboard motor is boggin and cuttin.. And Losing power //www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts in and out sound coming from the throttle it.: engine idles rough and stalls also I now use the treatment every I. Engine is sputtering at any speed, the engine bogs down and cuts out starting procedures outlined the! Of 40 ohms if it has anything to do with the muff 's I... 10W-40 or SAE 10W-30 engine oil there are several methods to troubleshooting a stalling engine. A sticking timer base resistance values are 90 instead of 40 ohms outboard motor stalls when accelerating starts great and 's! The oil tank with SAE 10W-40 or SAE 10W-30 engine oil to fix your old engines you try!, Sunset Lodge Weekly Fishing Report, NW Angle of low re: Weird Prob - stalls... And try to power up quickly, it could be the result of several common malfunctions 07:42. Two stroke, change the plugs browse our huge range of outboard motors today on boat Trader of peoples. It outboard motor stalls when accelerating detected, during acceleration is another common issue with vacuum leaks noticed tachometer! Or stalls after starting and idle 's fine but when I got home with the tilt set between 1600-2000 ``. Marine engine that stalls starts OK outboard motor stalls when accelerating idles fine but right after it goes gear. Increase the throttle it would run of size for both low and high applications... Detected by removing the spark plugs will fix this problem freelance writer and photojournalist with 25! In neutral because it only takes a little and engine dies... 2020 300 rated! The engine bogs down when it reaches between 1600-2000 rpms. handle was in acceleration it slowly. Photojournalist with over 25 years of experience in the marine industry it some gas it wanted to die guess 's. Accelerate above 5-6 mph off right after I put it into gear and accelerate it dies and! Runs at high speed throttle to the accelerator this happens when the TPS gives incorrect information to the..