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...However, if you're still stuck in the same problem, then there is a good chance that you'll need to purchase a new fuel pump. These were a few common issues you can expect with a Mercury 4-stroke EFI outboard. If you take proper care of the unit, then there is a good chance that you won't have to worry about these issues again.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".2-Stroke Outboard Loses Power at Full Throttle. In addition to the general issue of a Yamaha outboard not reaching full RPM, 2-stroke outboards may experience specific problems that result in power loss at full throttle. Common causes for this issue include: Incorrect Fuel Mixture: 2-stroke engines require a specific fuel-to-oil mixture. …Jul 19, 2017. #1. I got one of those dreaded 2000 Mercury 90hp four stroke outboards on my nitro. Starts and runs great at first. Will perform normally until gets warms (around 15 mins of run time). Spits and sputters, won't idle, dies, can restart with full throttle as it floods out once warm. I let it cool for 20 mins and it starts and runs ...Suzuki DF250A runs good and then dies. 10-18-2021, 10:23 AM. Good Morning All, I have a 2002 2800 hydra sports boat with twin 2018 DF250 engines. The boat seems to run great until I stop somewhere for a while and start back up. It will usually run for 3-5 minutes and then die. I get 3 beeps when it shuts down.Tohatsu 5hp 2 stroke runs fine for 20mins then quits and won't restart! sharpey: Engines and Propulsion Systems: 27: 14-06-2018 13:41: Tohatsu 5 2-stroke VS Tohatsu 6 4-stroke: Distant Shores: Auxiliary Equipment & Dinghy: 33: 13-04-2015 19:16: Yanmar 3gm30 dies after running: 2liveonboard: Engines and Propulsion Systems: 7: …Yamaha 200 HPDI Problems. 04-17-2019, 08:46 PM. My daughter bought a used boat with a Yamaha 200HP HPDI in February and has constantly had problems with the engine losing power. Her local marina mechanic has changed the thermostats, replaced the gaskets to the low pressure pumps and adjusted the cables. Each time he fixes something, the boat ...To repair this, replace your fuel filter. 4. Too Much Oil Can Cause the Engine to Shut Down. When there is too much engine oil in your snowblower then your engine may smoke, run terribly, and eventually may shut down. Too much engine oil can get up to your spark plug, into your cylinder, and hydro lock your engine.Hi everybody!!!. I have a tohatsu 2006 4 stroke 9.8 hp runs less than 1 minute then dies and will restart but dies again. I bought a primer bulb thinking that was the issue but still the same i think it might be a electrical issues any advice or ideas would be greatly appreciated.57K views 16 replies 4 participants last post by ATVer1992 May 31, 2013. M. mdevos Discussion starter. 9 posts · Joined 2012. #1 · Jan 18, 2012. my 02 7.3 starts idles for 5 sec. then dies when i go to re-start it i wont start...if i cycle the key on and off it will re-start idle for 5 sec. and die again...i replaced the fuel filter , cps any ...It is tight when the engine is cold but opens, ever so slightly when the engine heats up. When the gap opens, the air/fuel mixture, which passes through the crankcase on two-stroke engines, leans out to the point where the engine dies. When the engine cools and the gap tightens, the engine will run again. Maddening.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 ...May 9, 2004. #2. Re: Yamaha 200 HPDI starts and dies!! Has this boat sat up any length of time? Did you add fuel stablizer to the fuel and run it thru the system. It sounds like a fuel pressure problem. The high pressure fuel pump in the vst/fuel chamber. You need to put a fuel pressure gauge on this engine.An ignition coil (or coil pack) creates the high voltage needed by your spark plugs to create a spark. When the coil is beginning to fail, the spark it produces may be weak, or it may produce a spark intermittantly. Both scenarios can lead to a situation where your engine runs for a short period, but then dies when under load or at higher RPMs.Mar 21, 2018 · Mar 21, 2018. #1. Ok... I just purchased an older boat with a 1982 Mercury 50HP 4 cyl 2 stroke. When I first got it I had no spark so I replaced the stator. Now I have spark, it cranks for for about 3 seconds then dies. I have to choke and throttle it all the way up for it to actually crank. It cranks revs (smokes a lot) and then dies.Apr 17, 2012 · 429 posts · Joined 2011. #4 · Apr 17, 2012. tried it again to move it after it sat awhile. started up once. idled as long as i wanted. i hit throttle and it died. did that same thing 1 more time. then it started and died by itself as described above. then proceeded to not start. battery charger made no difference.Conclusion. Your outboard motor may die when shifting gears if not all cylinders are firing correctly. This is because the engine won't be generating enough RPMs to keep the motor running, so it will sputter and die. The root problem may be related to a bad spark plug, ignition coil problem, or even a fuel problem.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!]27. Aug 28, 2005. #1. Basically my 1996/1997 60hp is cutting out and refusing to restart after being run for a while. I was out and cruising along at about 25knots and I slowed down to stop and put it in neutral and it died and then refused to restart. Had to get towed in. Took it home and cleaned all the fuel system right thruogh and the carb ...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.Then it dies. This would leave you to believe the others are not firing correctly, but this isn't necessarily so. ... Hello , I have a 2004 Yamaha 2 stroke 50 hp outboard. The engine seem to run good for about 15 minutes. Only went up about 3/4 throttle.(New Boat to me). ... I have a 2 stroke Yamaha 90 outboard. The motor starts just fine and ...Re: Yamaha 150 HP V6 2 stroke outboard dies at full throttle temporarily The vent should not be covered. Try this. Get a 5 gallon container, disconnect the fuel line after the filter and stick it in the can. This way you have eliminated everything in the fuel delivery system except the primer bulb. Run it and see if you still have the same problem.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.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 guide specific to ...Re: Root cause of Mercury 2-strokes' rough idle. Rough idle is a subjective statement. If all is normal, 2-stroke idle is acceptable. Sometimes near as good as a 4-stroke. Many things can affect idle quality. Probably too many to mention. The one that we fear the most is uneven compression. C.Nov 21, 2013 · 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 histoPosted March 11, 2009. The bike hasn't been running to my knowledge for 4-5 months. Prior to my purchase the previous owner, a friend, said he cleaned the carbs. Basically, she'll start up fine and idle around 1500-2000 rpm (full choke) but upon going to 1/2 choke or giving her any throttle, she dies. I assume it's due for a carb adjustment of ...I have a 1994 or 95 150 hp Evinrude outboard that shuts off after about 10-15 minutes. It fires just fine when cold but after running a little bit it just completely shuts off, no sputtering or anything just dead. It will not restart for a while afterwards, After giving it 30-45 minutes it...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.Re: '01 Yamaha 115 2 stroke starting problem. rodbolt said: once you make sure the choke linkage and the throttle linkage is properly adjusted, simply TRY the correct starting procedure for a 2 stroke 115 yamaha. with engine down pump fuel primer to insure fuel is avalible in the fuel bowls, thats ALL the primer does.Step Six: Reconnect the Fuel Line. The last thing you do before getting out on the water is reconnect all the fuel lines to the boat carburetor. Once all the fuel lines are connected, start the engine and let it run for several minutes. If the bog is fixed, the engine should run smoothly, and you can get back on the water!Nov 21, 2006. #6. Re: Yamaha 30HP 2 Stroke Running Problems. Alarms go off because of overtemperature or an oil related problem. A thermostat stuck shut will cause overheating. A thermostat stuck open causes poor running as the engine never gets to operating temperature. An oil related problem can kill the engine.Re: Root cause of Mercury 2-strokes' rough idle) true. The compression readings aren't perfect: the lowest reading was 103psi in one of the cylinders when measured about 2 years ago (the engine hasn't done more than 25 hours since then) but I don't longer have the readings in the other 2, I think they were around 110psi, so will …If you’ve suddenly found yourself in the role of care-taking or supporting a loved one after a stroke, there are a few things you should know in order to best help them and also ta...Will run in neutral for 2-3 minutes--sputtering, misfiring occasionally--then dies. If I try to throttle - Answered by a verified Marine Mechanic ... I own a 2006 Yamaha 2 cycle, 50 hp outboard that runs out of gas at full speed. ... Mercury Tech. 5,752 satisfied customers. My 2003 25 hp yamaha 2 stroke outboard lost fuel pressure, My 2003 25 ...2 stroke outboard starts but then dies when throttled or idle. paulg222: General Sailing Forum: 57: 04-08-2021 14:15: Perkins 4.154 starts immediately, runs great, then knocks off once put into gear. Af: starfish62: Engines and Propulsion Systems: 16: 08-09-2015 06:32: Engine runs today--dies tomorrow: sidsail: Engines and Propulsion Systems ...However, if you're still stuck in the same problem, then there is a good chance that you'll need to purchase a new fuel pump. These were a few common issues you can expect with a Mercury 4-stroke EFI outboard. If you take proper care of the unit, then there is a good chance that you won't have to worry about these issues again.Mercury & Mariner Outboards . Mariner 9.9 2 Stroke Starts and Runs for Several Minutes Then Dies ... I have a 1996 Mariner 9.9 hp 2 stroke and after running for several months would not start. I rebuilt the carburetor with a new kit with gaskets, etc. I replaced the fuel tank and fuel line. ... Mariner 9.9 2 Stroke Starts and Runs for Several ...81BASSTRACKER. New member. Sep 11, 2023. #1. I just bought this older boat and it runs pretty good. the issue I'm having is that at some point during the day while I'm cruising on plane it just totally cuts off. it wont start back up but it sounds like it wants to.,.. it turns over. so i start trolling back to the dock... after a while it will ...06-22-2015, 06:53 AM. Hi folks! New to the forum here and new to ownership of a Yamaha 1990 model 90hp 2 stroke triple which I believe is called a model 90AETO (maybe TRL in USA/Canada). I'm hoping some users here can give me some pointers as to where to look for repair/troubleshooting. I should add that I'm experienced with 2 stroke and 4 ...Jun 17, 2007. #3. Re: 90 HP Merc - runs then dies after throttle. Welcome to iboats!! I'd start by checking spark, compression and fuel. Spark should jump a 7/16th gap and be a hot blue. Compression should be over 100 on all cylinders and within 10% of each other.1.4 Engine Power And Acceleration Problems. 2 Preventative Maintenance Tips. 2.1 Regularly Cleaning And Flushing The Outboard Motor. 2.2 Properly Lubricating Moving Parts. 2.3 Checking And Replacing The Fuel Filter. 2.4 Inspecting And Replacing The Water Pump Impeller. 3 Professional Troubleshooting And Repair.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.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 ...89. Reaction score. 0. Apr 25, 2016. #1. I inquired in another post about a possible fuel pump issue but I'm starting to think my 3 cyl Johnson 35 hp is having electrical issues. I took it out last weekend and it ran fine for a 20-30 minute run. I stopped for a while to fish and then tried to take off. It sputtered and died like it was fuel issue.Jul 1, 2011. #2. Re: Mercury outboard dies at idle... Eduardo said: ...and also in forward gear at idle. This happens only after I run the motor at high speed. Then when I put it in neutral or forward gear in idle, it dies not right away but a few minutes later. The only way to start it is if I push the ignition switch to choke.11 posts · Joined 2006. #1 · Jul 30, 2006 (Edited by Moderator) I bought my first motorcycle about 2 weeks ago and was having a blast until last week. I started the bike and was letting it warm up. The bike was running for about 5 minutes, then sounded like it was losing power. The RPM's went down and the engine died and would not start again.01-20-2016, 10:31 PM. Hi, I have a 2001 Yamaha 40hp 2 stroke that will not idle. The motor starts and idle very rough and then dies. The issues appears to be with the number one cylinder. If I disconnect the number one spark plug wire, the engine will stabilize and idle on two cylinders. If I reattach the number one plug wire the engine will ...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, new oil mixture 50:1. 3. new gas lines and pump ball, what else ...Hello,<br />PLEASE HELP!<br />I have a 1987 (I think) 90 HP Mercury six cylinder Outboard on a 16 foot fiberglass boat.This rig is new to me as of December 2001. I have experienced the following problems:<br /><br />First, the motor was a bear to start 2-3 minutes of turning the key.<br /><br />Second, the motor would run about 23 mph for the first 15-20 minutes then without me doing anything ...To check if your gas pump is working well, inspect the relay, fuse, fuse holder, and harness connector pins. For the fuel pressure, you should aim for something between 4 to 7 psi. Yes: All good, next test. No: Your fuel pump is most likely not pushing the correct amount of fuel inside the carburetor/engine. As a result, your engine cannot stay ...If its always done this your jetting is too lean, choke adds more fuel to the mixture. Check for main bearing play, there might be a air leak coming from the left side crank seal (Happened to my ds80) Check for air leaks around the engine causing lean running condition. I just out a new carb on it. That's when it started doing it.Will crank and run briefly, then dies and gas comes out of air intake. Put a new - Answered by a verified Marine Mechanic. ... I HAVE A 2001 YAMAHA 75 HP 2 STROKE OUTBOARD MOTOR.IT STARTS AND IDLES WELL BUT IT WILL NOT REV UP UNDER LOAD MORE THAN 2500 RPM. AS I RUN AT 2500 IT WII PICK UP AFTER ABOUT 5 MIN.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.Check the Fuel and Air Filters. Inspect the fuel filters and the air filter too if your outboard has one. One of the first signs that the powerhead isn’t getting enough air or fuel is when the motor stalls, particularly when …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.The common causes of 2 stroke bogging at full throttle include using the wrong gas mix, dirty or clogged air filters, damaged spark plugs or barrel gaskets, and damaged intake manifold gaskets. Easy fixes include using the correct fuel, cleaning dirty parts, and replacing the damaged components. These are just a few reasons for two-stroke ...Re: 90 hp mercury runs awseome for 90 seconds then cuts out. A weak hish speed ignition will limit power and RPM will 'hang' at the limit of the voltage. A weaken fuel supply will limit power to a fixed point in the throttle opening, any further opening of the throttle and the fuel mixture goes LEAN in the upper carb (s) and melts piston (s).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.Active member. My Tohatsu 3.5 2 stroke outboard has developed a problem this weekend. It will start first pull and will then run for a few minutes and then dies. after perhaps 5 or 6 pulls it will start again and runs for a further few minutes and dies again. This will repeat a number of times and then will run ok untill I get to where I am going.06-30-2010, 02:49 PM. 2000 115 2 stroke wont idle. Hello, I am having the same problem with my 2000 Yamaha 115 2 Stroke. I can not get the engine to Idle. I have; 1) Replaced the oil water seperator. 2) Replaced the fuel filter. 3) Replaced the fuel pump.. Re: 40 HP will not run at full Throttle. One other thing: This i4. Mar 21, 2011. #1. I have a 1978 Mercury 500 50 hp thunderbolt. T 3. Aug 13, 2006. #1. I have a 1998 70 hp Suzuki motor on a 19 ft pontoon boat. I have had the boat 2 years now. Last year it ran great. This year I am having a lot of issues with the motor. It dies within 5 seconds of starting. It takes a while but I usually can get it started (10 - 15 tries). [highlight]Now it starts first time when col 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.Re: Root cause of Mercury 2-strokes' rough idle) true. The compression readings aren't perfect: the lowest reading was 103psi in one of the cylinders when measured about 2 years ago (the engine hasn't done more than 25 hours since then) but I don't longer have the readings in the other 2, I think they were around 110psi, so will … Mar 24, 2013 · 2007 Mercury 90 2 stroke carb'd....
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