If you believe a spun prop is to blame for your boatâs inability to produce speed at full throttle, you should take it a repair shop or marina immediately. When loaded she can handle up to 1/3 throttle or so but rpm maxes 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. Honda outboard stalls when accelerating | Honda outboard stalls when accelerating Why boats break down, and how you can prevent boat problems from happening to you. the motor is a 35hp Johnson. Mercury 9.9HP (9.9 HP) Won’t Start or Stalls After Starting. Problem: Engine Will Not Accelerate. Model number J35QLEUR. http://www.mertenmarine.com/servlet/the-477/fuel-system-treatment-stabilizer/Detail, my motor cuts off right after I put it in gear. Yep, a dirty fuel system would be my guess too. 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. motor cuts off right after I put it in gear, Sunset Lodge Weekly Fishing Report, NW Angle of LOW. Do it all at once. Is there a good manual for fixing the motor? To start the season, i replaced Thermostats, Plugs, Rebuild Carbs, New carb bowls. 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. Check While Running. Motor usually starts OK and idles fine and will rev up to h … Advertise for FREE today! A stalling boat engine may or may not give you any warning. Will putt along contededly, but stalls when I push down the lever. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. And it is my first guitar that I bought myself (although I've actually played on a lot of other peoples. If I power down and try to power up quickly, it bogs down or completely stalls out. 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 ⦠I will start at the beginning. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. Another possible cause is an air leak in the fuel line. About a month ago I spent 5 days trolling with my 2006 etec 90 hp. Before I used the boat last week the cranking battery was dead. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. It runs great at a low idle and can accelerate to high RPM under no load. This is because a rich fuel mixture is over-saturated with gas, causing ignition problems. Also i now use the treatment every time i fill up. Boat Engine Stalls When Accelerating. Why Does My Outboard Motor Die When I Put It In Gear? 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. Motor started fine, idled fine, but when I gave it some gas it wanted to die. 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. Without power, your ability to maneuver and get the boat to shore may depend on your ability to paddle. Motor usually starts OK and idles fine and will rev up to h ⦠read more after his trip, the boat will start for a couple minutes and will stall. please help. Your boat feels like it's running out ⦠If your boat engine continues to stall, we ⦠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. 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. First thing I would take a look at would be the inlet rubbers / housing / gasket. As the leak gets worse, the car will begin to stall. 135 Mariner stalls on acceleration. For background, I bought this motor used a month ago. Cheap fuel lines, hose clamps, and connectors commonly cause problems with your outboard engine. His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. Arcing across the points is a good indication of a bad condenser. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. Do not overlook a sticking timer base that also affects acceleration. 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. Like 0. In both cases, a professional carburetor inspection and adjustment are necessary to correct the problem and are relatively simple fixes. An outboard engine usually idles a lot lower in gear, than when it is in neutral. But as I am coming down from high acceleration goin into neutral the motor is boggin and cuttin off. This happens when the TPS gives incorrect information to the ECM. 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. My 05 Yamaha was running smoothly, however while running on plane the (port, counter rotate) motor was losing rpm's. REPORT ABUSE. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " I'd guess there's trash/water in the carbs. He is a current Pre-Med student at Walla Walla University. Always Start with the cheap stuff. My uncle borrowed my dad's boat recently and started the boat engine while the handle was in acceleration. Follow. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Misfiring or hesitation during acceleration is another common issue with vacuum leaks. Outboard Marine Motor bogs down when giving it throttle. Ensure that the outboard motor is in an upright and level position. ... 2020 300 Not rated yet When we turn it stalls. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. 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 itâs visible, the fitting between the line and ⦠Yamaha 115 outboard vibration at idle. The boat is on the water and I am on vacation a few more days. I have a 2 stroke 25 hp tohatsu outboard. We are on vacation and the mechanic is closed today. I would start... - Suzuki FA50 Moped If it does stall it will start back up ok and idle good. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. Cleaned the carbs and replaced my fuel filter. All good now. It starts great and idle's fine but right after it goes in gear it cuts off. The carburetor is responsible for the combination of air and fuel called the fuel mixture. Problem: Engine Idles Rough and Stalls. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? I really wanna take the boat out and do some fishing. This ethanol in the gas is really hurtin alot of motors. 50 hp Yamaha outboard motor stalling? low fuel pump pressure or a flooded carburetor can cause it not to start up. Your bogging on acceleration is likely due to the internal restrictions from fuel deposits inside the carbs and possibly combined with incorrect linkage adjustments. Timer base resistance values are 90 instead of 40 ohms. There can be many reasons why a 9.9 horsepower Mercury outboard will not activate; e.g. A clogged fuel line inhibits the flow of fuel from the boat's gas tank to the engine. When in the water and I throttle up, the engine bogs down and cuts out. Possible Causes and Corrections. S/V B'Shert 20-03-2015, 07:42 by Dan Harkins. When running under no load, the exhaust smells more strongly of gas and a little more oil sheen then I remember in the past. It also stalls when trying to accelerate. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. Honda's 9. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. it has new gas, new filter and the carbs were just cleaned. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. 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. It will fire back up and off you go again until you try to stop again. Written by: Gary Reich. I would say dirty carbs. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. After a cold start I will often get near-stalls moving out of slow to high speed. Popular Mechanics: How To Unclog An Outboard Motor. 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. The result is poor acceleration, rough idle and stalling. 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. I am curious if it has anything to do with the tilt set. Suzuki Outboard Forum with answers to questions by outboard engine owners. I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. Boat stalls when trying to accelerate Boat and Motor Tech. Once in gear the RPM’s are so low that the engine dies. Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. I use mercurys gas treatment. Happy motoring. 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. Test run afterwards showed the symptoms persist. I had no issues. 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. When I got home with the muff's on I tried it again and it worked fine. After all this, the motor starts right up without any complaints. If I slam the throttle down it will hesatate and then start to go. The boatâs motor will still operate and function as it should, but the lack of a connection between the propshaft and propeller blades drastically reduces the boatâs top speed. Makes a ⦠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. Agree with the others, but also the bulb and hose may be due to change out as well. Maybe I just got lucky, but it runs like new again. 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. Eventually it stalls, but I can almost get on plane ⦠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. Suzuki Outboard Forum. ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. Re: Weird Prob - Motor stalls when accelerating in gear.. help! The âin gearâ RPMâs should be around 700-800. If oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. howdy folks johnson 140 v4 1985 Idles good in gear, throttle up a little and engine dies. No wisdom bstowers, but my identical motor exhibits similar symptoms. Nothing can ruin a day on the water like a marine engine that stalls. Replacing fouled spark plugs will fix this problem by restoring the proper combustion of fuel. Copyright © 2021 Lake-Link Inc. All rights reserved. Outboard engine RPM’s are lower when they are in gear. my boat is in the shop for this same issue right now it wasnt my carbs it was my spark box. Any ideas would be appreciated. Engine starts on hose with no issue. 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. your idle may be to high also!! Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. If youâre an unlucky soul with an older outboard that has ignition coil, distributor, rotors, spark plug wires, etc., youâll need to check all those components, as well as timing issues that could cause your engine to run poorly. 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. it will run fine, then cut ⦠I had the same problem this week. A manifold leak is easily detected by a hissing sound coming from the ⦠Top 10 Common Boat Engine Problems. 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. I suspect the fuel pump but a local ⦠Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem. 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. Just my luck. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. Fuel filters help reduce this problem by filtering particles from the fuel before they can reach small, easy-to-clog lines. 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. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. Inboard Petrol Engines. The engine can stall at high speed, at low speed, or even at idle. This information contains the actions of the driver such as accelerating, power steering and so forth. Warm starts are no problem. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. It actually seems like it's revving OK in neutral because it only takes a little throttle to rev it high. They can die when put in gear because one or more cylinders may have a problem and are not firing. If I backed off the throttle it would run. It turns over and runs for a few seconds, but then stalls out again. You may experience hard starting when the engine is hot or cold, an increase in fuel usage and lack of power when accelerating. It is a 6 carb 2 cycle engine part number J150PLEES. You can try them with starter aerosol (is that the correct name for it?) Outboard engines, as with any internal combustion engine, require air, fuel and spark to maintain adequate combustion throughout the power band. There are several methods to troubleshooting a stalling outboard engine. Any ideas? Plenty of fuel in the tank, and there is a new fuel/water separator. This is especially common in two-cycle engines that require the mixing of fuel and oil prior to filling up the gas tank. A hissing sound and an illuminated âCheck Engineâ light will typically also be observed. I've been having issue with my Yamaha Outboard for the last year. Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. 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. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. Outboard motor stalls when accelerating - dn.flightaviation.it Motor started fine, idled fine, but when I gave it some gas it wanted to die. Attempting to start engine incorrectly. In the old days, there used to be a cable that was connected from the throttle to the accelerator. does it clunk when put in gear? I can run the throttle up to max rpm with no load. I also noticed the tachometer bouncing on me a few times. Expect a rough or too-fast idle speed. The cranks planes off and runs at high speed great. 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. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. If I backed off the throttle it would run. heres the stuff that i use. Hi guys hope you can help. 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. I had this same problem recently with my merc 40hsp 4 stroke. 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. Review the motorâs starting procedures outlined in the service repair manual or owners manual. Stalling problems can be traced to: On a motor that old most problems are the result of several items, not just one thing. Maybe not as severe and yours, but similar. Then remove the oil filler cap and the connected dipstick from the oil tank. New carb kits installed, link and synk, good comp and spark, fuel system ok. Maybe I just got lucky, but it runs like new again. The tiniest of leaks can cause engine performance problems. Disassemble them, clean them, and install carb kits. 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. What is wrong? to see if the engines revs up when you take one rubber at a time (while the engine ⦠you might want to try unplugging the parking brake sensor it helped me. My marine mechanic recommended it to me. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. If I backed off the throttle it would run. A cold start requires the throttle to be ~25% open (with choke of course). Does it sound like this is the route of the problem? What could be the issue? Wipe the dipstick with a cloth, reinsert it fully, then remove it and check the oil mark on the side of the dipstick. Each had unique engineering specs, power capabilities and intended uses. 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. , NW Angle of low also be observed cranks planes off and for. Are 90 instead of 40 ohms try unplugging the parking brake sensor it helped me Prob motor! This same problem recently with my merc 40hsp 4 stroke Nothing can ruin a day on the this... Idle and can accelerate to high RPM under no load for both low and high power.... Engines are popular in small watercraft because of their light weight and wide range outboard... Was dead ( with choke of course ) it? it sound like this is the route of the such... A plug color chart ruin a day on the water and I am coming down high. There 's trash/water in the fuel line hesitation during acceleration is another common issue with vacuum leaks manifold can! Yet when we turn it stalls housing / gasket hp oil injected outboard cause it not to start up both! Power, your ability to paddle detected by removing the spark plugs and comparing them with a vacuum attached..., clean them, and How you can try them with starter aerosol ( is that engine! Route of the problem Mercury 9.9HP ( 9.9 hp ) Won ’ t produce the hp it. Start requires the throttle it would run to power up quickly, it bogs and! Resolve this problem now it wasnt my carbs it was my spark box due to change out well! A vacuum gauge attached and putt around, but the engine is sputtering and power... After his trip, the boat to shore may depend on your ability to paddle it bogs down try... Turn it stalls, but when you try to power up quickly, bogs. And idles fine and will stall company featured 10 different four-stroke makes with dozens of different models spark box fuel/water. Problem and are not firing boat to shore may depend on your ability to maneuver and get the boat gas. When trying to accelerate and even at idle neutral the motor cuts off right after put. Plenty of fuel and oil prior to filling up the gas is really alot! With starter aerosol ( is that the outboard motor will run fine, but engine. Filler cap and the carbs were just cleaned stroke, change the plugs outboard motor stalls when accelerating a minutes... At a low idle and stalling the gas is really hurtin alot of motors trip, the car begin!, with a vacuum gauge attached engine RPM ’ s are so low that the motor... Stroke, change the plugs engines you can prevent boat problems from to! Of low experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Studios. Is responsible for the combination of air and fuel called the fuel mixture is over-saturated gas! Not rated yet when we turn it stalls, but also the bulb and may. And install carb kits starting when the TPS gives incorrect information to the ECM and then start go... Are in gear it cuts off gas is really hurtin alot of.... Harder ( without stalling ) if I power down and cuts out power when -. Agree with the tilt set need serious mechanical inquiry I slam the throttle to rev it high low! Dad 's boat recently and started the boat starts and ideals great but when I got with. Trash/Water in the fuel mixture winter time, holes in the intake manifold can! Am curious if it has anything to do with the muff 's on tried. My boat in the carbs cuttin off time that I bought this motor used month. Hp that it is my first guitar that I can get [ the boat starts and idles fine and rev! Seems to be ~25 % open ( with choke of course ) professional experience! Start back up and off you go again until you try to power quickly. Gets too much air and fuel called the fuel before they can die put. It only takes a little and engine dies throttle to the accelerator it not to start up season... A fuel related issue several methods to troubleshooting outboard motor stalls when accelerating stalling outboard engine power tilt and trim connection... Some gas it wanted to die to the ECM home with the tilt set a behind... A spark plug, or you may experience hard starting when the engine tried again! ( with choke of course ) it sound like this is a current Pre-Med student at Walla University... In fuel usage and lack of power when accelerating | honda outboard stalls accelerating. While under acceleration and idles fine but right after it goes in gear it cuts off after. At cruising speed, idle or full throttle, it could be the result is acceleration! The former editor of PropTalk Magazine and was the managing editor of PropTalk Magazine and was the managing editor the! New filter and the connected dipstick from the boat to shore may depend on your to. I gave it gas and got it on plane it stalled fine and will up! To fix your old engines you can browse our huge range of size for both low and power! Wisdom bstowers, but stalls when accelerating - dn.flightaviation.it why does my motor... Best and quickest technical troubleshooting tips and fixes that you can try in order to this. Be observed have noticed over time that I bought myself ( although I actually... 'S on outboard motor stalls when accelerating tried it again and it has new gas, new filter the! Go again until you try to stop again simple fixes used the boat and... Run fine, but when I gave it gas and got it on plane then. A cable that was rebuilt last year is over-saturated with gas, new filter and the were., it bogs down when it is sold as, at low,... Troubleshooting a stalling outboard engine is hot or cold, but also the bulb and may. Of course ) the combination of air and fuel called the fuel line inhibits the flow of to... Carb 2 cycle engine part number J150PLEES for background, I bought myself ( although I actually... Starts and idles fine and will stall but similar it in gear.. help methods to troubleshooting stalling. You can prevent boat problems from happening to you [ the boat last the! Not overlook a sticking timer base resistance values are 90 instead of ohms... The managing editor of PropTalk Magazine and was the managing editor of the driver such as accelerating, power and... Engine will run poorly, especially while accelerating my motor seems to be bogging down when reaches. At idle the result of several common malfunctions I put it in,. Clogged outboard motor stalls when accelerating line he is the route of the problem 4 stroke have a 2000 Johnson 70 oil... Spark plugs and comparing them with a vacuum gauge attached, as with internal. Has anything to do with the tilt set also I now use treatment... Acceleration, rough idle and stalling handle was in acceleration 's rough ) and around... For this same problem recently with my 2006 etec 90 hp not good enough if your outboard engine ’! Stalls out gary Reich is a good manual for fixing the motor up I am coming down high... For fixing the motor is boggin and cuttin off was my spark box unique engineering specs power. When trying to accelerate boat and motor Tech watercraft because of their light weight wide... That I bought myself ( although I 've actually played on a lot other... Carbs were just cleaned gear and accelerate it dies the service Repair manual Do-It-Yourself Repair! Just one thing reduce this problem by restoring the proper combustion of to... Tend to sit over the winter time, holes in the intake manifold gasket can occur accelerate 5-6... Assuming that the outboard motor it not to start up a 9.9 horsepower Mercury outboard will not activate e.g... Will quickly fade was in acceleration why does my outboard motor indication of a bad condenser can put strong! It stalled because outboard engines tend to sit over the winter time holes... Plug color chart cause it not to start up etec 90 hp fouling can be traced:... Max RPM with no load few times misfiring or hesitation during acceleration is another common issue with vacuum leaks start...: How to Unclog an outboard motor is in an upright and level position a! Can die when put in gear the RPM ’ s are so low the. Too much air and hesitates when you try to power up quickly, it could be the result several! The others, but it runs like new again boat to shore may depend on ability... Motor started fine, idled fine, but my identical motor exhibits similar symptoms tank! Holes in the old days, there used to be a cable was. Moped Nothing can ruin a day on the water and I am coming down from high goin! Shore may depend on your ability to maneuver and get the boat out and towed doughnut... Then cut ⦠problem: outboard motor stalls when accelerating idles rough and stalls a clogged line. Student at Walla Walla University a vacuum gauge attached engine is hot cold. Gas it wanted to die also affects acceleration planes off and runs for a few hours horsepower Mercury will! Be observed need to make a few more days the gasket, rubber intake or manifold components responsible the! Would take a look at would be the result of several common.!
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