Jun 15, 2010. Messages. 25. Jul 9, 2010. #10. Re: Boat Runs on Ear Muffs Stalls in Water. ESAD.... first things first. if the carbs have been cleaned, put the boat in the water, set the idle up 1/4 turn on the idle screw. It's the long bolt where the throttle cable goes in the motor. You'll see that it sits against the idle stop.Jul 14, 2012. #4. Re: outboard starts, goes WOT, then dies, and wont restart. and let me clarify a little. when i start it with the choke on and throttle 1/4 past start it fires and the engine goes (not the throttle) WOT. of course the choke will not let it open up all the way, so it boggs at a certain point. open the choke and it races full ...Posts: 104. Re: Mercury 2.2 hp outboard - Dies after 5 mins. This is almost bound to be a fuel related problem. Firstly eliminate the easy issues to check. (1) there is plenty of fresh fuel in the tank (i.e. and no water). (2) is the vent working properly (you can release the main filler cap as engine faulters to check this).Fuel-related issues are a common culprit when it comes to power loss in outboard motors. Here’s how they can affect your motor’s performance: Contaminated Fuel: Old or contaminated fuel can lead to engine problems. Water, dirt, or ethanol in the fuel can cause combustion issues and power loss. Fuel Filter Blockage: The fuel filter’s role ...The world of outboard engines is vast and filled with numerous brands and models, but one that notably stands out is the Mercury 40 HP 2-stroke engine. Known for their reliability and performance, these engines have become a popular choice for boating enthusiasts worldwide. However, like any mechanical piece of equipment, there might be …01-29-2015, 11:56 AM. I have been battling a stalling out problem on my Yamaha 4 stroke 225 HP engine for years now. I'm at the end of my rope. After running the engine for awhile, it sometimes decides it wants to stall out at low idle. If I squeeze the primer bulb, it will usually restart right way and will run until it decides it wants to ...It can be frustrating, especially when you're trying to enjoy a day of boating. An outboard motor dies when put in gear mainly because the cylinders are not firing. When you shift into gear, the engine RPMs drop; if the cylinders are faulty, the engine may not generate enough power to run. This can be due to clogged fuel filters, bad fuel pumps ...Hi, I have a 40 hp 2 stroke Suzuki, the last time it was on the water it ran good, full power, for about 2 hours, then it started making this chirping sound almost like a backfire or something. Brought it home now it will on fire one time it will start and immediately die. Let it sit for a couple hours then it will do the same thing.If your 40 HP 2-stroke outboard engine runs fine but won’t reach full throttle when in gear and only revs up in neutral, there could be several potential causes for this …My engine is a 2008 Mariner 40 HP 2-stroke 2 cylinder ( Belgium version) S/N 0P550276. I bought it six months ago and tested it in a barrel and it ran like a dream on the 3rd pull. When I opened the throttle, it would always take a second or two for the engine to catch up and increase rpm. I payed no attention to this.All gauges work including oil pressure. I can rev it up to say 1100 RPM and will stay running. The accelerator pump was replaced with the rebuild kit. If I don't mess with RPM it starts and dies within a second or two. If I don't pump gas it has a bit of a extended crank then starts and dies.Nov 27, 2017 · 999. Nov 26, 2017. #3. Your problem has been going on for two years. If you would bet your life the fuel system is perfect,then. It's a wire, just a guess, anything this weird and long is usually a wire corroding almost all the way through in a wire connector. Pull all wires that go into a wire connector very hard.And,06-26-2018, 04:52 PM. I have a question for you guys about a boat I recently purchased, a 2002 Boston Whaler, with a 2003 Yamaha 90hp 2 stroke Outboard. The engine ran great the first few times I had it out, but always seemed sluggish, I was getting 4600 rpm and 36 mph at WOT, but it would take a while to get up there, it didn't seem to be very ...62,321. Aug 8, 2010. #8. Re: Motor dies when shifting into Neutral. Put in a new Mercruiser OEM new style cable, and your problems will be over. If the cable doesn't move VERY EASILY when unhooked, then it will be even worse when hooked up. You are fighting a faulty cable, that's all there is to it.2007 75hp efi runs great then powers down and dies. put in some sea foam and some tko and ran it 3/4 throttle for 20 min. ... I have a 1984 2 stroke 75 hp Mercury outboard, it runs great off the hose at home but won't get over 1500 Rpms full throttle in the lake, ...Because the concentration of oil in a 2-stroke is so low - 1:40 or even 1:50, depending on the engine, it's easy to think that it isn't necessary. Not so; it's vital. Running a 2-stroke without lubrication is not good. If your engine will still turn over, it isn't seized, and you may have dodged a bullet. Put the correct oil/fuel mix in and see ...Yamaha 40 hp 2 stroke - starts, idled shortly, then dies. I recently purchased a 15 foot whaler with a 40 hp 2 stroke Yamaha outboard. The previous owner had it regularly serviced and hadn’t shown an issues until today. I was out with a buddy today and it was running fine.My engine is a 2008 Mariner 40 HP 2-stroke 2 cylinder ( Belgium version) S/N 0P550276. I bought it six months ago and tested it in a barrel and it ran like a dream on the 3rd pull. When I opened the throttle, it would always take a second or two for the engine to catch up and increase rpm. I payed no attention to this.Aug 17, 2013 · However a new problem (seemingly) occurs. Poor idle, runs under load for a while then dies out. I've replaced the fuel filter, checked all hoses and everything looks in order. When it dies out, if I manually squeeze the primer bulb it will often fire back up. Maybe the fuel pump is failing or there is restricted flow leading to it.Some of the reasons why Johnson outboard motors lose power at full throttle includes overloading, overheating, use of bad fuel to oil mix ratio in the 2 stroke variant, use of bad spark plug and faulty ignition system. When these problems occur, the power generated from the outboard motor will be reduced.And whatever the power of your 2-stroke or 4-stroke engine: 6hp, 15hp, 25hp, 30hp, 50hp, 60hp, 75hp, 100hp, 150hp, 250hp, etc… What are the most common causes of an outboard motor stalling on acceleration? If none of the above assumptions apply to your situation, then your outboard motor stalls on acceleration almost always due to carburetor failure. …01-27-2007, 05:56 PM. we have a 13 year old yamaha 175. after running for about 10 minutes, engine bogs down to low rpms, sometimes stalls. runs perfectly up to that point, up to full wot rpm. comes back to higher revs briefly when we pump the bulb. replaced primer bulb, external water separator filter, and checked fuel lines for cracks. any ...#1. Hello, I've replaced the gaskets on the carb, cleaned it, rebuilt the primer/fuel pump, replaced the tank gas line, bulb and connectors. Starts easy, runs fine …Modern outboard engines have come a long way, whether you’re talking about the now-common four-stroke or modern DFI motors on up to Mercury's biggest 600-HP power plant. . In any of those cases, reliability is far better than it was in decades past, fuel efficiency has increased, and problems like smoky exhaust and ear-splitting sound levels are ancient histo01-27-2007, 05:56 PM. we have a 13 year old yamaha 175. after running for about 10 minutes, engine bogs down to low rpms, sometimes stalls. runs perfectly up to that point, up to full wot rpm. comes back to higher revs briefly when we pump the bulb. replaced primer bulb, external water separator filter, and checked fuel lines for cracks. any ...I'm still receiving my education in outboard motor troubleshooting, maintenance, and repair. issue: outboard motor (75hp mercury tracker -- 3 cylinder, 2 cycle) cranks, run well for several minutes at full throttle, then dies (or sometimes idles if I pull back the throttle when I hear the engine losing power).I prime the bulb, the motor …Because the concentration of oil in a 2-stroke is so low - 1:40 or even 1:50, depending on the engine, it's easy to think that it isn't necessary. Not so; it's vital. Running a 2-stroke without lubrication is not good. If your engine will still turn over, it isn't seized, and you may have dodged a bullet. Put the correct oil/fuel mix in and see ...Jun 27, 2012. #6. Re: Engine dies suddenly but starts right back up. That certainly is a factor. Clean or replace all of the large gage wire terminal ends, negative and positive, at the battery and the starter and the engine block. A shorted battery can drain alternator power also, cause low voltage even when running.Make sure that your carbs are clean. I have had to rebuild carbs a couple of times and mess with float levels at times before they run perfect. Tuning is only effective if all the jets and seals are working properly. persistance is sometimes the most frustrating part of tuning 2 stroke engines.When the trimmer starts and runs, replace the fuel cap with the trimmer still running. Continue to let it run for a while. If it sputters and dies with the cap on and then immediately starts and runs once the cap is removed, you most likely have a problem with the fuel tank vent. Replace the vent with a new fuel tank vent. 8. Dirty CarburetorIt will idle fairly well and then all of a sudden will start sputtering. I then took it to the lake and ran it. I was able to adjust the idle down a little (1200 driveway/1000 lake) but anything below that and it would die. The motor seems to run fine other than at idle. Sparkieboat mentioned to make sure non of the carbs are running lean.Messages. 4,087. Mar 27, 2012. #2. Re: Mercury (Classic) 40 hp loses power on full throttle. Typically when a motor starts, idles, and runs well at full throttle for a bit, and then performance dies down it is a failing ignition component. And LOL at "classic". There are some guys on here with motors from the 30's and 40's!!Modern outboard engines have come a long way, whether you're talking about the now-common four-stroke or modern DFI motors on up to Mercury's biggest 600-HP power plant. In any of those cases, reliability is far better than it was in decades past, fuel efficiency has increased, and problems like smoky exhaust and ear-splitting sound levels are ancient history.Brand new outboard with 22 hours. Runs perfect at idle and 5800 RPMs and every RPM in between. After running engine for any length of time; shut down and tilt up and then return to running position within a few minutes (or sometimes not tilt up but leave off for 30 minutes) and attempt to start and engine cranks for 10 to 15 seconds without ...Re: 4HP 1980 Mercury dies out after a few minutes and then only runs on half choke. Once warmed and running, spray propane, butane, flamable carb cleaner, something at the carb base gasket, intake, crankcase parting lines, etc., watch and listen for any change in RPM, indicating air sucking into the motor, leaning the mixture and causing a need to additional fuel thru the carb.I have an 8hp Mercury 2 stroke outboard for my dinghy and it has generally been very good, but recently after having just filled the gas with 97 Premium (at Valero) and adding the appropriate oil, it is now not running. This engine has never idled that well, but previously, as soon as it starts if I apply some throttle it is good to go. Now the exact …Most two-stroke engines have two screws that allow you to adjust the carburetor. One of these screws adjusts the mixture of the gas/oil/fuel mixture, and the other screw controls the speed of the idle. To adjust the carburetor, you need to have the engine running. Slowly turn the screws to adjust the carburetor until the engine is running smoothly.It can be frustrating, especially when you're trying to enjoy a day of boating. An outboard motor dies when put in gear mainly because the cylinders are not firing. When you shift into gear, the engine RPMs drop; if the cylinders are faulty, the engine may not generate enough power to run. This can be due to clogged fuel filters, bad fuel pumps ...Aug 9, 2009. #1. "This has been a worsening pro. "This has been a worsening problem and yesterday became unacceptable. Had to get a tow back to the mooring. It starts acceptably, then runs for a period and then dies, like it is out of fuel. Happens both at idle and at moderate throttle. It may or not restart right away, but will quickly die.8,958. Apr 28, 2014. #9. Re: Engine only runs with choke on. No it doesn't. When you pull out on the choke knob the choke plate on the carb should close, sealing off the air from the carb. When you push the choke knob in, the choke plate in the carb should be wide open, allowing air into the carb.Last year at the end of the season the boat started running bad after running it for about 30 min. I could shut the boat off and let it sit for 5 min and it would run again fine for about 5 min. then it would lose power again and would backfire when I tried opening the throttle. Well I put a new fuel filter on it and that didn't fix the problem.2008 Honda 9.9 outboard starts fine, runs fine, then quits. Starts right back up no problem. Runs for 2-3 minutes then - Answered by a verified Marine Mechanic ... Want to talk to someone experienced with 4 stroke outboard motors ... Starts easy and idles fine, when I shift to forward or reverse, it dies. Have to rev much higher than I like to ...4 Common Evinrude E Tec Problems: 1. Engine Fails To Start: The first common problem that most consumers have experienced while using Evinrude outboard engines is the starting failure. Some users even specifically mentioned that the engine cranks like normal but does not start.One problem that many boat owners come across is the outboard motor stalling while at idle. Here are 9 common reasons why an outboard dies at idle: Carburetor issues. Idle settings not configured. Water in the fuel supply. Clogged fuel tank vent. Malfunctioning idle air control valve. Fuel system issues. Faulty spark plugs.Watch out for both as temperatures spike this summer. With a record-breaking heat wave roasting the Pacific Northwest, it’s important to not only stay relatively cool but to active...11. Jul 16, 2012. #6. Re: Motor Shuts Off While Running. Well it's back at it, I have a 2005 Mercury 60hp 2-stroke 3 cyl. outboard that cranks and runs fine at idle or low rpms but when I increase throttle and boat to plane it stalls and shuts off, then is very hard to crank, if it cranks at all. I have replaced all fuel filters, hoses, bulb ...70 hp 2 stroke low throttle issue. 04-01-2018, 06:41 PM. Just put my project 1987 70 hp etlh 2 stroke engine in the water for the first time this weekend. only history i knew on the engine was that it came off of a 16 foot bass tracker and had sat unused several years. i cleaned the carbs (three times actually as i missed a jet the first two ...1995 Evinrude 130hp My outboard did not start and did not have any spark/sometimes intermittent spark. So on a hunch i decided to replace power pack (used) and sure enough that fixed the problem. Now it starts, however, it only stays for about 1 minute then shuts off. It sounds like a fuel...Then, if your engine is under 25HP, you may be able to use the emergency cord to pull-start. It’s possible to do this with up to a 50HP engine, but be aware that the higher the HP, the more difficult this will be. If this works, the battery is likely the issue. You may need to replace it. Reasons Your Mercury Outboard Still Isn’t WorkingBoat runs fine for 5 to 10 minutes. Then it stalls and won't restart. If I wait about 20 minutes it will start and run for less than a minute and stop. Has brand new battery. I put on a new coil. Has brand new spark plugs. After it dies it won't even crank (sounds like the battery is dead). It is a 1987 Baliner Capri.Watch out for both as temperatures spike this summer. With a record-breaking heat wave roasting the Pacific Northwest, it’s important to not only stay relatively cool but to active...You can check for fuel pump by having a tote tank elevated above engine height. Sometimes the fuel connection fittings can allow air to be sucked in, too, interrupting fuel supply, when the motor bogs down, you could try having someone with you continually squeezing the primer bulb as you motor along, if it runs normally then, it would seem to ...Low speed running (1200 - 2400rpm) in forward gear is very rough, sounds like its running on 2 cylinders only and I need to throttle up to 75% throttle to clear this and as soon as she hits around 3200 rpm she signs nicely on all 3 cylinders while accelerating at this throttle setting. Once on the plane and throttling back to around 50% to hold ...Jun 25, 2013. #2. Re: Runs Great. Then Won't Start. Next Morning Starts Right Up. Pull a plug wire off when its not starting up and check for spark with a screw driver, you just stick the screw driver usually a phillips fits nicely, in next to the contact, hold the screw driver 3/8 inch from the engine and crank the engine over, you should see ...12. Aug 3, 2010. #2. Re: Honda 9.9 4 stroke dies on idle. Today I drained the carb by opening the drain screw - and even pumped a little gas through with the primer pump - that's what my mechanic told me to do - didn't do a bit of a difference. I also took a little test trip going for about 10 minutes on full throttle.If your Mercury outboard run then dies and you need to change your fuel filters on the 2005 Mercury the fuel filter is difficult to find. In this video I wil...New member. Dec 2, 2014. #1. My 2007 Tohatsu four-stroke, bought on e bay this summer, will run for only about 10 minutes before cutting out. It needs to be left for a few minutes before it will start, then dies again after a few minutes. The mechanic working on it is stumped, as he has replaced the coil and carburettor, cleaned out the fuel ...Re: 28 HP Evinrude SPL start then dies. If you have oil residue as you say then you are not running at 100:1 or your carb is a mess. I would suggest that you are running rich and flooding. OMC recanted on their 100:1 so you should run on 50:1 to preserve the motor. 2.Yamaha 2 stroke outboard motor loses power if it has problems like faulty carburettor, bad fuel to oil mix ratio, use of contaminated fuel, bad fuel line, fouled plug, bad ignition coil and overheating. when any of these problems occur in the two stroke Yamaha outboard motor, it will drastically reduce the power output of the outboard motor.Outboard engine RPM’s are lower when they are in gear. They can die when put in gear because one or more cylinders may have a problem and are not firing. Once in gear the RPM’s are so low that the engine dies. Here are the best and quickest technical troubleshooting tips and fixes that you can try in order to resolve this problem.The motor starts in about 1/2 a turn, it runs perfectly at idle. It will shift into gear but bogs down when it is under a load. It will not get past 2000 rpm's. Here are the things ive done so far. 1. cleaned carbs with cleaner and air pressure. 2x's. made sure needle was falling when float comes down 2. Drained all old gas out, put in new gas ...Summary. The most likely reason that your two-stroke engine is stalling under load is that your carburetor is dirty or dead. It is still worth it to run through the other, easier fixes of your engine, before jumping to the rebuild of the carburetor. Check your filters, gaskets, spark plugs, and vents first, as you may luck out with a simple fix .... Using new gas and new Quicksilver 2-stroke outboard oiIn some cases, the loss of power in your outboard To do this, locate both idle screws on the carburetor. One will be marked L (low) and the other will be marked H (high). Turn both screws in to shut the fuel off, then turn them back in the opposite direction 2 turns and start the engine. The engine may not run perfectly under these settings, but it should at least start up.It can be frustrating, especially when you're trying to enjoy a day of boating. An outboard motor dies when put in gear mainly because the cylinders are not firing. When you shift into gear, the engine RPMs drop; if the cylinders are faulty, the engine may not generate enough power to run. This can be due to clogged fuel filters, bad fuel pumps ... Advertisement The following animation shows a two-st 4. May 19, 2003. #1. My Mercury 2 stroke 50 hp (1988) has a continual problem starting. When in the water, it can sometimes take 5 or 10 minutes to fire, when it does eventually turn over it is totally choked up, and takes some time to clear itself. Once going it is generally fine. 2003 225hp Yamaha 4 stroke - Dies while running - Appears fuel relate...
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