The âin gearâ RPMâs should be around 700-800. It also stalls when trying to accelerate. His professional work experience includes publication with KOMO 4 News Seattle, Fisher Interactive Network, and Demand Studios. Ensure that the outboard motor is in an upright and level position. What is wrong? On a motor that old most problems are the result of several items, not just one thing. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? Will putt along contededly, but stalls when I push down the lever. Yamaha offers consumers great variety with its four-stroke outboard motor lineup. I will start at the beginning. Maybe not as severe and yours, but similar. About a month ago I spent 5 days trolling with my 2006 etec 90 hp. A stalling boat engine may or may not give you any warning. it will run fine, then cut ⦠If I power down and try to power up quickly, it bogs down or completely stalls out. Outboard Marine Motor bogs down when giving it throttle. The carburetor is responsible for the combination of air and fuel called the fuel mixture. Assuming that the ignition system is in tip-top shape, that sounds like a fuel related issue. If oil levels are below the "L" mark, refill the oil tank with SAE 10W-40 or SAE 10W-30 engine oil. If I backed off the throttle it would run. My marine mechanic recommended it to me. Motor usually starts OK and idles fine and will rev up to h … If I nudge it up slowly, eventually I can get [the boat] on aplan and run like heck. This information contains the actions of the driver such as accelerating, power steering and so forth. 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. Popular Mechanics: How To Unclog An Outboard Motor. This motor is Chinese junk, apparently this is the only Honda outboard that is manufactured in China. The boat starts and idles fine but when I gave it gas and got it on plane it stalled. If the ratio of fuel to air becomes too high or too low, the engine will run poorly, especially while accelerating. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. No wisdom bstowers, but my identical motor exhibits similar symptoms. 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 ⦠These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. These increase the air intake, causing a lean fuel mixture and vacuum pressure problems. Motor started fine, idled fine, but when I gave it some gas it wanted to die. 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. Arcing across the points is a good indication of a bad condenser. Motor started fine, idled fine, but when I gave it some gas it wanted to die. heres the stuff that i use. Nothing can ruin a day on the water like a marine engine that stalls. Whatever your pleasure, boaters are eventually faced with a decision about their aging outboard motor: Rebuild or open the checkbook and buy brand new? Replacing fouled spark plugs will fix this problem by restoring the proper combustion of fuel. 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. Hammer down throttle and she starts to go on plane, then dies. We are on vacation and the mechanic is closed today. Like 0. 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. If your boat engine continues to stall, we ⦠Then remove the oil filler cap and the connected dipstick from the oil tank. 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 bulb is doing something or you could not start the motor, but if it is older, it may also be ready to change out. Then the motor stalls when I try to accelerate. 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. While accelerating my motor seems to be bogging down when it reaches between 1600-2000 rpms. " Cleaned the carbs and replaced my fuel filter. Maybe I just got lucky, but it runs like new again. Model number J35QLEUR. 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. it has new gas, new filter and the carbs were just cleaned. I had this same problem recently with my merc 40hsp 4 stroke. November 22, 2016 Repair Manual Do-It-Yourself Outboard Repair Guides 5. It turns over and runs for a few seconds, but then stalls out again. 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. Why Does My Outboard Motor Die When I Put It In Gear? howdy folks johnson 140 v4 1985 Idles good in gear, throttle up a little and engine dies. Outboard motor stalls when accelerating - dn.flightaviation.it Justin Chen is a freelance writer and photographer with 6 years of professional experience in outdoor activities, extreme sports, travel and marketing topics. 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. Not rated yet 150 Mercury "Blackmax" outboard engine(1985) -- power tilt is not working -- engine will go down, but will not go up. Repairing what you have, or buying a used engine ⦠REPORT ABUSE. 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. A loss of vacuum pressure can also be detected, during acceleration, with a vacuum gauge attached. Honda outboard stalls when accelerating | Honda outboard stalls when accelerating Yamaha 115 outboard vibration at idle. Always start with checking for strong spark, a bad condenser can put out strong spark when cold, but will quickly fade. A hissing sound and an illuminated âCheck Engineâ light will typically also be observed. Everything was going great and then it just stopped. Follow. 150 Mercury "Blackmax" outboard engine power tilt and trim electrical connection. Advertise for FREE today! Outboard engine RPM’s are lower when they are in gear. Problems with the delivery of any of these combustion components can cause an engine to stall while under acceleration. Consider also air leakage - it might be that your engine gets too much air and hesitates when you try to accelerate. 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. If I backed off the throttle it would run. I had no issues. Motor started fine, idled fine, but when I gave it some gas it wanted to die. Engine starts on hose with no issue. please help. 50 hp Yamaha outboard motor stalling? A manifold leak is easily detected by a hissing sound coming from the ⦠I just put my boat in the water this weekend and it has a mercruiser 170 that was rebuilt last year. ... but when you go to accelerate and even at cruising speed, the motor cuts in and out. I can idle (sometimes it's rough) and putt around, but the engine stalls when I accelerate above 5-6 mph. Boat stalls when trying to accelerate Boat and Motor Tech. There are several methods to troubleshooting a stalling outboard engine. Disassemble them, clean them, and install carb kits. 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. S/V B'Shert 20-03-2015, 07:42 Written by: Gary Reich. Always Start with the cheap stuff. He is the former editor of PropTalk Magazine and was the managing editor of the Waterway Guide. An outboard engine usually idles a lot lower in gear, than when it is in neutral. 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. 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 ⦠Do it all at once. I would say dirty 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. For background, I bought this motor used a month ago. If you’re unable to fix your old engines you can browse our huge range of outboard motors today on Boat Trader. Does it sound like this is the route of the problem? As the leak gets worse, the car will begin to stall. 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 ⦠Honda outboard motors offer top acceleration ⦠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. Maybe I just got lucky, but it runs like new again. Misfiring or hesitation during acceleration is another common issue with vacuum leaks. Once the leak is found, replacing the gasket, rubber intake or manifold components responsible for the leak will fix the problem. 135 Mariner stalls on acceleration. I had the same problem this week. The boat is on the water and I am on vacation a few more days. Because outboard engines tend to sit over the winter time, holes in the intake manifold gasket can occur. to see if the engines revs up when you take one rubber at a time (while the engine ⦠... Any Mercury 9.9 HP outboard engine that wonât start should begin working if ⦠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. I really wanna take the boat out and do some fishing. This is because a rich fuel mixture is over-saturated with gas, causing ignition 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. Do not overlook a sticking timer base that also affects acceleration. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. It runs great at a low idle and can accelerate to high RPM under no load. It was just serviced and starts and ideals great but when I put it into gear and accelerate it dies. Becomes too high or too low, the engine dies high acceleration goin into neutral the motor is an... 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