Tweet. #1. 2001 90hp 2 stroke starves for gas at full throttle. 05-11-2014, 03:10 PM. Idles fine, runs full throttle about 30 seconds then tries to die and runs rough. I have changed the fuel pump, all fuel lines from the tank and the primer ball. When it starts to starve I can pump the ball and it takes off again.seumask said: Another Outboard question. I have a fairly ancient Yamaha 8 that starts fine and idles normally to start with. However as soon as it's used for a couple of minutes it wont run at low revs, cutting out and will only then start with the throttle fully open if at all. I have checked the fuel supply and made sure there is no water in ...The flywheel on an outboard will need to be removed when repairs are needed such as the motor not starting properly. In order to access the crankshaft of the motor the flywheel wil...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.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 ...By Joe McElroy. When an outboard motor runs at speed but cannot hold an idle, it usually indicates a problem with the carburetor. Outboard motor designs vary depending on make and model, but all operate on similar principles. Consult your owner's manual to check items that may be unique to your motor. Most manuals come with a troubleshooting ...Country. 7 Jun 2009. #1. I have a strimmer & hedge trimmer, both driven by a 2 stroke petrol engine. They both start but as soon as they get hot they die. They will tick over for a while longer but as soon as I touch the throttle they die. Each year I change the plug & air filter, plus when I have finished using them I drain & run them dry.615. Mar 18, 2009. #5. Re: help 30 hp 2 stroke dies after warm up. First, you should see a "pee" stream comeing out of the engine cowling in the rear. IF you don't your WP or cooling system has problems that will cause SERIOUS damage if you continue to run it. Assuming you see the stream, here is another test.36K views 3 years ago. 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 …Yamaha VZ150TLRY starts and instantly dies. Last night I changes the VST filter and paper filter in the clear fuel filter on my 2000 Vmax 150 HPDI. I changed it after this past Sunday was on the water and at high rpm's the motor started surging and doing the fuel starving thing. So I ordered the filters and last night went ahead and put them on ...Re: Why does my outboard start and runs for 1 minute then dies/shuts off? i replaced all the floats, needles, valve and seals and found two floats were kind of stuck. i did not clean throttle bodies. It stays running if i push key in and hold it (or if i give it gas). I will check the jets.Mercury outboard won't start after warmed up. My 97-98 Mercury 40hp outboard won't start after it has warmed up. It will start right away and idle when I first put it in the water (every time). It also runs very strong after it is first started. BUT when I go to restart the motor after I have been sitting in a fishing spot, it won't start.Mercury & Mariner Outboards . 2 Cycle Mercury 40HP runs then dies. Thread starter ... . 2 Cycle Mercury 40HP runs then dies. Thread starter bmitchell82; Start date May 30, 2015; B. bmitchell82 Cadet. Joined Apr 25, 2015 Messages 9. May 30, 2015 #1 1998 40 HP Mercury 2 cycle oil injected motor. SN: 0G650371 I can get the boat to start …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.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.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 ...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.Honda Outboard Forum . Honda BF20 2005 20 hp four stroke rough running & stalling. ... previously reported symptoms recurred with rough running and then stalling. Engine would restart easily only to run for a time & then stall. Any further ideas or suggestions would be appreciated. ... Honda BF20 2005 four stroke rough running & stalling.Yamaha 40 HP 2 stroke - starts, idles 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 …2 stroke 25/40 loosing power after 10-15 min (when warm) 07-03-2021, 02:29 PM. Like mentioned, I have 1996 (?) 25QEO, deristricted to full 40 hp, its loosing power when gets warm. On wot and cruising speed, it slowly slows down, till i'm not planning anymore. If i shut it off, pump it ( prime it) the pump feels full, it starts from first two ...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 cranks on 1st turn, runs well for several mins at full throttle, then dies/loses power. [repeat!]By Joe McElroy. When an outboard motor runs at speed but cannot hold an idle, it usually indicates a problem with the carburetor. Outboard motor designs vary depending on make and model, but all operate on similar principles. Consult your owner's manual to check items that may be unique to your motor. Most manuals come with a troubleshooting ...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 ...A car engine uses a four-stroke cycle -- how can two strokes accomplish the same tasks? Learn all about the two-stroke engine, where it's used and how it compares to a four-stroke....2 stroke 25/40 loosing power after 10-15 min (when warm) Like mentioned, I have 1996 (?) 25QEO, deristricted to full 40 hp, its loosing power when gets warm. On wot and cruising speed, it slowly slows down, till i'm not planning anymore. If i shut it off, pump it ( prime it) the pump feels full, it starts from first two turns, then for a minute ...Battery switch is off. If your boat has a battery switch, make sure it's set to the ON position. Kill switch disconnected. A rookie mistake just about every boater has made. Make sure the safety lanyard/kill switch is in place. Incorrect starting sequence. Follow your outboard's startup sequence. For example, if your outboard needs choke ...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 ...Yep, the high speed jet gets the high RPM's, the low speed jets, low speeds.. Make sure ALL the openings are clear (you can see thru them. If the fuel is older than a month and un-stabilized, it's likely bad. Dump it and get fresh fuel B4 trying to crank it up again. Un-less you enjoy "do-overs".Jul 18, 2021 · Old or Flooded Engine. If your 2 cycle engine starts and then stops running, then the engine may be flooded. In order to tell whether or not the engine is flooded, remove the spark plugs. If the spark plugs are wet, then the engine has flooded. If your 2 cycle engine is flooded it may be probably dead and the gaskets need to be replaced.#1. got an outboard from my dad, its been sitting unused for the last 4 years. its a 1980? 1cyl, 2-stroke, 4hp... figured it was a simple engine and nothing major would …Electric power only started making sense for land vehicles about ten years ago, but now the technology is ready to make the jump into the water. Pure Watercraft hopes that its elec...90% of the time this type of issue is due to gunk in your carb, but before you do a carb rebuild (it’s not that hard) remember this. Rule of thumb, you need compression, spark and fuel to make an engine run. Most 9.9hp are two cylinders, this procedure works for two and four stroke engines. Take out the spark plugs.Dec 18, 2013 · 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...I have just purchased a second hand 2003 2 Stroke Johnson 8hp outboard. Perfect condition, clean almost new (looking) When cold it starts and runs fine. When hot it will not idle and just cuts out. It is then impossible to restart it until it has cooled down to cold! Today (we are in spain) we ran it for 5 minutes at full throttle, it was not ...81. Sep 11, 2009. #2. Re: Suzuki DT8 2stroke -circa 1983 start/run problem. Update: We thought the spark varied in intensity and have removed, checked and cleaned the ignition coil and the sensor/trigger, resistances within spec., spark now appears consistent and strong. Problem symptoms unchanged. Fires occasionally, runs roughly for a few ...May 19, 2004. Messages. 27,468. Mar 19, 2010. #5. Re: Have to keep pumping primer bulb.. With the engine not running, give the primer a really good squeeze and look for fuel leaks... If you get them, they're air leaks when the engine is running. That would account for the symptoms you've got.In some cases, the loss of power in your outboard motor might stem from mechanical problems, such as: 1. Overheating due to a clogged or malfunctioning water pump. 2. Damaged or worn-out drive belts. 3. Issues with the boat’s propeller, such as damage or excessive wear. 4.Tweet. #1. 94' Yamaha 115 2 stroke won't idle. 08-23-2011, 11:17 PM. motor will start with choke on, off once started. have to keep fast idle around 1500 rpms to keep motor running. if i drop fast idle and put into gear quickly it will stay running but if i give it any more throttle than 1500 rpm it floods out and dies. if i go through this ...8,905. Jun 25, 2013. #5. Re: Yamaha 30HP 2-stroke with only run with choke. if you have to choke it to make it run it is running too lean on fuel and the choke richens it. Pull, take completely apart, and clean carbs better, maybe an ultrasonic bath would be good. Make sure to follow the link and sync steps in service manual after reinstalling ...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.seumask said: Another Outboard question. I have a fairly ancient Yamaha 8 that starts fine and idles normally to start with. However as soon as it's used for a couple of minutes it wont run at low revs, cutting out and will only then start with the throttle fully open if at all. I have checked the fuel supply and made sure there is no water in ...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 ...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.I have a 1990 2-stroke electric start outboard that for some reason it will only run when in full choke. When I take it off choke it sputters and then dies, like it does not have enough air. After about 30 minutes on choke it will also start having power problems. I cleaned the carb. and it looked fine.Mercury & Mariner Outboards . 2000 Mercury 200hp EFI wot intermittent problem. Thread starter cuffey100; Start date Jul 21, 2011; Status Not open for further replies. ... The motor runs great until it dies abruptly then may not crank for several tries then usually has a hesitation for a minute or so but will eventually will run on all cylinders ...The outboard might sputter and cough up a cloud of black smoke to purge out the excess fuel. Fuel additives plus running the engine hard can often fix the issue, as could cleaning the fuel injectors. Black smoke can also mean the motor is burning more fuel than it should be, which is known as running rich. Other causes of black smoke include a ...In the United States, someone has a stroke once every 40 seconds. Even worse, every four minutes, one of those strokes proves fatal. For this reason, it’s critical to know potentia...The motor is a Yamaha, V4 115 2 stroke, 1992 (TLRQ) The symptoms are that I can get it to run on muffs smoothly.. starts up everytime.. however when I take it to the launch, it will start up, but 2-3 minutes later it will sputter and die.. and never restart. When this happens, I put it back on the trailer, bring it home, back on muffs, and ...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.When it's choked, you reduce air so the mixture ratio of air to fuel is correct. Push in the choke and the mixture has too much air for the amount of fuel it's getting. Clean the carb jets. Make sure you've got adequate fuel flow from the gas tank to the fuel pump. Check the fuel pump for proper operation. Make sure the vent on the tank is open.Outboard winterizing essential partsvu Outboard cooling system clean engines Mercury outboard runs then dies / part 2 / finding the other fuel Mercury hp 90 outboard stroke four fuel water system test low stutter started has further advise bill thanks justanswer. Wiring and Engine Fix DB.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.Dirty Air Filter. Less clean air means the jetting will become more rich, which can cause your dirt bike to bog. Keep the air filter clean, whether you have a 2 stroke or a 4 stroke. Cleaning/replacing the air filter is regular maintenance that you need to be doing to any dirt bike you own.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 ...Yamaha F150 idle and stalling. 12-23-2020, 12:20 PM. F150a. Production date 07/12. 136 hrs run time. Hi everyone from the UK. I have found and read most of the issues on the Idle Speed Con*****er issues. Especially the ‘rodbolt’ adjustment for the TPS and butterflies. Did this procedure today on the engine and it enabled the tickover to be ...Before coronavirus, video conferences were a largely stale format. The global crisis has forced organizers to get creative—with intriguing results. Spring is a particularly busy ti...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...Hi all: I have a 2002 Magnum 500 RMK. I just had the car rebuilt by a Polaris dealer. It runs great. Idles perfect accelerates excellent, perfect. That is, until it dies. It acts as if it runs out of gas, OR the spark fails. I added a new fuel filter, fuel pump, and fresh gas. I saw on the Polaris site that the spark plug cap could be bought ...