Outboard starts and runs for a bit then dies. Thread starter Mwilson18; Start date May 1, 2021; M. Mwilson18 Seaman. Joined Nov 24, 2020 Messages 57. May 1, 2021 #1 I have a Mercury 60hp 2 stroke outboard, and a few months back I used an open tank of gas and an open ended (cut) hose that I plugged into my outboard and dumped the other end into ...Advertisement You can now see that two-stroke engines have two important advantages over four-stroke engines: They are simpler and lighter, and they produce about twice as much pow...Ranny1019. New member. Aug 19, 2023. #2. Check your fuel line for an obstruction and the primer bulb for fuel flow. Some times on an old hose the inner lining breaks down and collapses when the suction of the fuel pump gets higher with increased speed. R.DT 9.9 2-stroke dies except at high revs. It starts easily as long as the choke is open and the throttle fairly high. Choke goes in immediately after starting. It will keep running as long as the revs are quite high (> around half-way on the throttle). Nowhere even close to what might be described as idling.Re: Johnson 2004 115HP 4-stroke dies after starting. You can call me daytime 239 842 0294, if your dealer cant solve the problem. Dealer should check for trouble codes, check idle rpm, fuel pressure at idle and full throttle. remove the hose fom the idle control valve, look inside valve for dirt, bugs, rust.For two-stroke engines, you want to have a 50:1 of gas and oil. You don't want to mix oil with your gasoline for your four-stroke engine, because it is not built in the same way. See also: Cleaning Gas Tank of Two-Stroke Engine. Overheating. Another problem that causes a two-stroke engine to backfire is overheating.Re: 2 stroke outboard starts but then dies when throttled or idle. Any of these are possible included a degraded fuel line. Some of the newer fuel lines do not play well w/ethanol fuel. Here is an example of how the liner can come loose and heavily restrict/block fuel flow. Correct on that one Mike.May 25, 2013 · Re: 1986 Evinrude 2 Stroke V6 150 hp starts (with manual help) then dies. Please help I pulled the carbs and cleaned everything with carb cleaner even sprayed inside the lines, pins, jets, everything. It started and ran for about 45 seconds and sounded good but died after. I checked the position of the floats and how far they opened looked good.We would like to show you a description here but the site won’t allow us.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 opposite.2-stroke bogging. 03-03-2016, 09:56 AM. I have a 2004 150 yamaha 2-stroke that starts and runs fine but will bog if you try to push the throttle over ~3200rpm. Let me put down a quick timeline. 1 boat purchase at auction runs ok but bogs at 3krpm. 2 mechanic tune up same thing. 3 mechanic rebuild carbs. 4 I receive boat install carbs same thing.31,574. #10 05-07-2019, 09:31 PM. I was taught this procedure long ago to easily start a two stroke outboard first thing in the morning. 1) Pump the bulb until it's firm. 2) Trim motor down until level. 3) choke motor to a slow count to 10 to prime carburetor. 4) Advance cold start lever (if there is one).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.Clean and gap to spec, or replace. Check spark is hot. While plugs are out of the block, test the fuel pump. To check fuel pump, disconnect fuel line from carb. Squeeze hose. bulb until fuel empties from end of carb hose into a jar. Place thumb. over end of hose. Crank engine a few times.Nov 11, 2008. Messages. 328. May 23, 2012. #6. Re: Warm engine dies. yes the choke is opening, the engine will die even if it is revving higher than idle, at higher revs it also becomes impossible to keep it running, then engine shudders, coughs and spits up thru carb. Been doing some archive search and been reading about coils possibly acting ...- Born Again Boating. Why Does My Outboard Die When I Put It In Gear? A common problem that we see a lot of, with Two Stroke Outboard Motors is that for some reason …The boat runs fine at higher rpm but when it is in idle, the motor wheezes or coughs and then dies. It will start back up but then the problem occurs again. ... 1982 Yamaha 175LR 2 stroke. Could it be water in the fuel? I noticed that the fuel filter had some water in it as well as some sediment. Reply. Upvote 0.Messages. 2. Mar 27, 2012. #1. Hello.. I have a 2006 Mercury 9.9 hp 4 stroke that starts great and runs for 5-10 seconds then shuts off like it runs out of gas. It starts right back up and runs for 3 sec then off. Then if I try to start again it doesn't. If I let it sit for a day it will start and run for 5-10 seconds then shuts off, etc, etc.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. …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.The boat runs like a scalded dog but wont idle for nothin. I cleaned the carbs for the third time and it remedies the idle, then after about 30 mins of run time, idle jets get clogged again. It looks like a gel and also a white chalky substance inside of the carb. I dont know where the crap keeps coming from.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 opposite.Chickenskinmusi Junior Member. Have a 1989 70 H.P. Evinrude that runs for five minutes at times, then just quits, may run more or less than that then quits. Choke it a couple of time and it will re-start and run awhile, then quit. Can someone point me in the right direction as to where the problem may lie.Tweet. #1. Bogging down under load. 03-04-2011, 12:40 AM. I have a 50 yamaha with 150 hrs on it. When I put it I the water, and put it in gear, I can't get over 1400 rpms. Now if I just use the cold start lever it revs right up. There is a little red lever under air silencer.Oct 3, 2008 · "Have a 1980 model Johnson 70h "Have a 1980 model Johnson 70hp. It starts right up and runs for a minute or two then just dies. Will restart back up after letting it set again but does the same thing. NOt fuel related dies, just shuts off like you turn the key off. Never had any problems...Jul 3, 2012. #7. I had a similar problem on my 1986 25hp. I wasn't going to play guessing games so I replaced the fuel pump, easy fix, gas filter, easy fix, I replaced the primer bulb because mine was old and beginning to dry out and I replaced the gas cap on the tank because it was pretty rusted and I think may have been causing a vacuum in ...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.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.Mar 2, 2008. Messages. 15,640. Jul 23, 2013. #20. Re: Motor won't start when in water but starts fine with muffs. Remove all the spark plugs and retest with a hot battery, if still 45 psi quit throwing $$ at it. Motor should have a minimum of 100psi to run correctly. 1.Outboard Motors Forum. Yamaha Outboard Forum . Runs on muffs, runs on water, but then dies [Yamaha V4 115 2 stroke] Thread starter Socks_mcgee; Start date Sep 12, 2020; S. Socks_mcgee New member. Sep 12, 2020 #1 Hey all, I've been battling this problem for what feels like eternity now. The motor is a Yamaha, V4 115 2 stroke, …Re: 40 HP Mercury stalls when given throttle #2. If he ran it out of gas it's possible he sucked some deris from the bottonm of the tank into the system a good carb cleaning might be in order. As for the fuel pump I had a similar problem with a 70 horse and a fuel pump rebuild ($11 kit about 15 mins to install) made the thing run like new again.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 ...05-14-2010, 10:05 AM. I have a 2000 yamaha 60 hp 2 stroke that is on and off again cutting out problem at various speeds.I've eliminated fuel and have replaced one coil and have moved that new coil to each cylinder with no difference. Sometimes it will run great then it cut out like it's running on just 2 cylinders,more so when I back off when ...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.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.2007 Mercury 90 2 stroke carb'd. Rebuilt the carbs, new plugs, new filter all around 100 hours or so ago. Maybe a little less. Been running great. I changed the fuel line a couple weeks ago and I've had it out on the water probably 3x since then and it's been good. No different.The first thing to do is to run the engine off a portable tank using a different fuel hose. If the problem goes away, the issue is your fuel flow. The possibilities are: 1. Your tank vent is blocked. Test as suggested above by loosening your filler cap.I have a 2004 40hp 2 stroke manual start. Boat has been sitting for 2 years stored indoors heated. I can get it started but it dies after a few seconds. If I pump the primer bulb by the pull start I c … read more26. May 15, 2006. #1. I have a 1996 Mercury 115 ELPTO that runs perfectly. The problem is that when I am running at full throttle the engine suddenly dies. It doesn't sputter at all. It just dies. Then I can fire it right back up and it will do the same thing again.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,Jun 24, 2021 · Faulty Impeller. Bad Spark Plugs. Malfunctioning Fuel Pump. 1. Tangled Propeller. If your outboard motor will not throttle up, the issue may be as simple as a tangle. Debris such as fishing line, excessive seaweed, beer can rings, or nearly any other material can wrap around the propeller and its spindle.Mercury 2-stroke outboard motors are highly regarded in the boating world for their reliability, performance, and efficiency. However, like any mechanical device, they can occasionally encounter issues and require troubleshooting. In this blog post, we’ll explore common problems associated with Mercury 2-stroke outboard engines and provide detailed, step-by-step solutions for fixing them ...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 WorkingIt just sort of bogged down and died. I start it back up and it dies within 5-10 seconds each of the 10,000 times I get it started. I tried starting it and revving it up and it …Let’s discuss the common problems associated with Mercury 4 Stroke EFI systems, their possible causes, and the steps you can take to troubleshoot and correct them. The most common problems with Mercury 4 Stroke systems are: Failure To Start. Rough Running. Poor Performance. Engine Surge.Mar 2, 2008. Messages. 15,640. Jul 23, 2013. #20. Re: Motor won't start when in water but starts fine with muffs. Remove all the spark plugs and retest with a hot battery, if still 45 psi quit throwing $$ at it. Motor should have a minimum of 100psi to run correctly. 1.My problem consists of my outboard cutting off while im running.. The speed varies when the motor cuts off.. I can be going 15 or 50 but the motor will cut off a some point and its always randomly.. I can run sometimes for a while before it does it but sometimes it happens right when i head out.. But the motor will crank right back up..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!!Tweet. #1. Intermittent engine stall-fuel flow issue. 04-03-2015, 09:03 AM. I have a Suzuki 4 stroke that is 10 years old. It has been serviced and runs fine. However, it will stall periodically. The sequence goes as follows: squeeze primer bulb prior to starting, will start and run fine. Stop for awhile and then it will start up but stall ...Check to make sure that the shifter is not in forward or reverse. 4. Fuel Problems. If the engine turns over or cranks like it always has, then chances are you are looking at a fuel problem. Always start troubleshooting with the simplest items first. Check the fuel system step by step, from the tank to the motor.1) Fuel Filter - I cleaned the fuel filter by unscrewing it and blowing out the bits of dirt in the container and on the filter. 2) Pilot Screw - Then I removed the pilot screw, cleaned it off, sprayed carb cleaner into the hole and replaced it. This seems to have been the most significant part of the fix.I'm just not a 2 stroke guy. An often overlooked item is/are the grounds throughout the engine systems. If there is a bad ground, plenty of resistance can interfere with electronics like coils, and electricals like fuel pumps. Might also be time to start with the fuel vent. Make sure it's clear. Clean or replace the fuel pickup tube. Check fuel ...Silver Medal Contributor. Jan 27, 2010. #3. "When you say "cleaned the. "When you say "cleaned the carb", did you disassemble it or just run some cleaner through. It sounds like (in order of most likely) 1) clogged low speed jet 2) clogged float jet 3) bad fuel pump diapharm. The first two conditions could be expected from improper storage prep ...In under two minutes, you could learn how to solve the problem for good! This helpful YouTube video by Succstrat explains what might be affecting your ability to get going. The way you have your primer bulb mounted could be your issue—and even if it isn’t–this guy’s accent and deadpan delivery are worth watching! Boat Fuel Problem.I have never got the engine to run good again after that. This is how it behaves. Runs smooth on idle and up to half throttle. If I give it more than half throttle it will work for 5-10 s and then it starts to lose power and runs really bad and dies after about 15s. It can be restarted and behavies the same over and over again.The Mercury 9.9 hp 4-stroke kicker motor was not running well. It would start, but die as soon as the choke was pushed in. Joe and I fixed it for free. Prett...Apr 28, 2002. Messages. 7,518. Jul 2, 2003. #2. Re: Mercury 115hp idles fine, dies when put into gear. When you put it in gear try squeezing the bulb. If it keeps running that would point to a fuel delivery poroblem. If so I would start by rebuilding the carbs.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.2,644. Apr 30, 2005. #4. Re: 75 HP Merc. Runs rough @ idle and stalls (need Help Please) It could well be that some varnishing has occured during the time that the motor was laid up, get the carbs cleaned and adjust the idle mixture and see what happens.<br />It would be prudent to replace the fuel pump Diaphrams and the impeller as well.<br ...225 Yamaha Four Stroke - Dies at idle. 06-14-2015, 09:49 AM. My 2004 port engines starts fine after priming the bulb, run at idle for 20 minutes, run engines for 20 to 50 min at 2000 to 5000 rpms, idle for 3 minutes or so to anchor. Anchore for an hour. Restart successfully, idle for 3-5 minutes, increase throttle to around 1500 rpms, engine dies.Re: 2000 Evinrude 15HP 4 stroke runs great for 10 minutes, then dies. Forgot to add that the motor now will completely die after 10 minutes. Previously it would miss-fire and degrade, then quite. Now it shuts right off. It will restart after a couple of minutes, but will only run for a few seconds before dieing again.May 2, 2012 · You might try running Sea Foam through it before spending a lot of money or time on a manual clean out or rebuild. Put a pint in 3 gallons of fuel. Run the motor for 15 minutes, then let it stand for 15 minutes. Repeat that cycle 8-10 times. That will clean out any carbon buildup in your motor and should help immensely.. Some of the reasons why Johnson outboard motors 2 stroke 25/40 loosing power after 10-15 min (when warm) 07- 05-14-2010, 10:05 AM. I have a 2000 yamaha 60 hp 2 stroke that is on and off again cutting out problem at various speeds.I've eliminated fuel and have replaced one coil and have moved that new coil to each cylinder with no difference. Sometimes it will run great then it cut out like it's running on just 2 cylinders,more so when I back off when ... issue: outboard motor (75hp mercury tracker I'm a beginner with motors so please bear with me. I have a 4-stroke 4hp Mercury outboard (dinghy) motor which was working fine but went unused for 3 years until recently. It has been intermittently struggling and occasionally cutting out (as if running out of fuel) since relaunching it.September 12, 2023 by longlifesport. An outboard bogging down is one of the biggest challenges a boat operator encounters. When it occurs, the performance of the outboard … Dec 18, 2013 · 1995 Evinrude 130hp My outboard did not start a...
Continue Reading