Mar 12, 2016 #3. Right after it stalls slowly crack open the fuel cap, if it makes a hissing sound like sucking air. Give your dealer fully detailed info, run time, throttle position, speed/rpms info, key west has many tests and fixes for the problem. My 250 had very similar issues, but quickly remedied by the KW guys.Oct 9, 2020 · This is one of the causes of engine stalling since the amount of fuel getting to the engine is only sufficient to run the engine on idle but cannot sustain a full throttle. Solution: Inspect the fuel filter for any obstruction. First, remove the filter and blow through it. In case of any blockage, you can clean out the filter or replace it with ...I have a 2005 90hp 2 stroke Johnson carbed outboard. I pre-mix the fuel and oil, and still have the original fuel / oil pump with the oil side disconnected and plugged properly. My problem is at low RPMs, about at "no wake" speed. After running the motor for just a couple of minutes at low RPM, when I give it more throttle, it bogs down and ...Share. Tweet. #1. 30hp 3cyl, cyl 2 dead. 12-16-2016, 07:57 PM. Got a 2001 30hp 3 cyl 2 stroke mshz oil injected. If I pull the plug wire on cylinder 2 there is no change. It runs a bit rough at idle, gets really rough and shakes up until I'm out of the lower rpm range and I presume off the idle circuit and on the main circuit.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...Items you will need. Johnson manual for your particular motor. Compression gauge. Leakdown tester. Check for simple problems that may cause the engine to run poorly. If your engine isn't starting, check for a loose spark plug wire. Something as simple as a wire not connected properly can keep your engine from firing.The main reasons for a boat engine start and then dies after few seconds are related to fuel supply, air intake, ignition, carburetor, and water contamination. By checking and addressing these issues systematically, you can improve the engine’s performance, reliability, and longevity.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.I have a 2006 Bentley 24-foot pontoon with a Mercury 90HP 4-stroke outboard engine. In May of this year, after months of inactivity, my wife and I took the boat out. It started right up and sounded just fine. While pushing out of the dock, the low voltage (4 short beeps every 2 minutes) alarm began sounding.Jun 11, 2014 · i have a 1988 Yamaha 40 2 stroke 3 cylinder Autolube. last year it ran good , but. not 100% ! Started it up 1 week ago and it takes 3 tries almost every time to start. once started it idles VERY rough . a low idle and then suddenly a higher idle and then a low idle , then "click" , "pop" and it dies . all of this happens in about 10-13 seconds ...2. Jun 26, 2008. #2. Re: Mercury 2 Stroke 50hp Won't Idle. For everyone who might have this problem, I thought I would share the solution to the problem. The carbs were loaded with water and the fuel filter was half full of water. We are going to replace the gaskets, clean out the carbs, drain the fuel filter and replace it, and also put in an ...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 ...Aug 7, 2011. #3. Re: Honda BF20 4stroke stalls when idle or low rpm. Similar problem with my Honda 8HP BF8A was caused by clogged low speed (idle or pilot) jet. I don't know if the 20 has the same general carb design, but if it does, that jet can be removed from the carb body without removing the carb from the engine.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.9.9.yahama outboard engine surges while running.idle reves up really high on starting or shifting from gear to neutral then drops to low idle and stumbles o...Explore pre-conference symposia for the International Stroke Conference hosted by the AHA. Learn from experts on the latest stroke research and treatment. International Stroke Conf...Re: My outboard johnson starts and idles fine then stalls when put in gear. What woul i had this problem with two separate johnson 85's. turned out the timer base was not advancing when the butterflies on the carbs were opening. this johnson is a little older than yours but most likely works on the same premise.johnson timer base - YouTube watch the video and see what i am talking about. i ...Here’s a run-down: Make sure that the kill cord is attached. Because your Suzuki outboard won’t start in gear, ensure the engine is in neutral. Inadequate fuel supply is a common issue, either from pinched hoses or a lack of fuel in the gas tank (s). Make sure that there’s no water in the fuel lines. Perform a visual inspection in the ...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.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 …I, too, have a 2-stroke Tohatsu 5hp outboard and even though it's not very old, I've had significant troubles with it. When we were in Norfolk, Virginia, we took it to a Tohatsu dealer, who also couldn't fix it. Finally, I took the carburetor off, completely disassembled it, added boiling water to an ultrasonic cleaner, let it clean for a half-hour …Have 9.9 hp Yamaha starts runs 2-4 minutes then dies. Starts again as long as I pump gas with white smoke. Runs 2-3 - Answered by a verified Marine Mechanic. ... 2000 Yamaha 100 hp 4 stroke engine outboard. Set for 2 years and then cleaned up as far as line filters and tanks.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 was running fine. I shut the boat off for an hour while we were out and about and when I ...Re: 2 stroke outboard starts but then dies when throttled or idle. Check for air leaks in the fuel supply hose from portable tank to the motor. They’ll either be at the …Mercury & Mariner Outboards . 99 115 2-stroke vibrates/runs rough midrange **FIXED!** ... and then look for the fuel filter and clean or replace, then onto the fuel pump and see what kind of vacuum it has. I just bought this boat this spring and need help also. Stan . L. lugnutz426 Cadet. Joined Jul 24, 2009 Messages 9. Jul 26, 2009 #3 …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 ...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....A good prop dealer will recommend a starting point and will have you try a couple of props to find the best setup for your boat. Running at full throttle at a thousand revs too low could easily be the cause of overheating on this motor. The cooling water pump turns at the same speed as the powerhead and its flow rate depends on the motor speed.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 was running fine. I shut the boat off for an hour while we were out and about and when I ...Read More: How To Increase Compression On A 2 Stroke Outboard The Easy Way. Final Thoughts. We have listed the possible reasons why your boat motor might be losing its power. Additionally, we have also mentioned a few solutions. If all else fails, try contacting a professional to know what is actually wrong with your outboard motor.If you have some time, please check a comprehensive guide on Mercury 75hp 2 Stroke Problems, that I covered a few days back. Problem 1: Engine Dies After Running for a Few Seconds. One of the most frustrating problems with the Mercury 40 HP 2-stroke is when the engine suddenly shuts down after starting and running for just a few seconds. SymptomsIn reality, this problem can be caused by a variety of issues. Everything from fouled or corroded spark plug wires to debris in the gas can cause sputtering or loss of power. The first step is to identify what the cause of the problem is. The easiest way to do this is by eliminating the simplest explanation first and working your way outward ...Jul 2, 2003 · 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.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 …Hello, new to the forum and the world of outboards. I have a 2005 Merc 90 hp 2 stroke outboard that has always ran well until recently. It starts good and will take off running good for maybe 15-30 seconds running about 4000 rpms. Then it starts losing power and acts like it is starved for fuel. The rpm will surge and drop between 3000 and …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 ...I, too, have a 2-stroke Tohatsu 5hp outboard and even though it's not very old, I've had significant troubles with it. When we were in Norfolk, Virginia, we took it to a Tohatsu dealer, who also couldn't fix it. Finally, I took the carburetor off, completely disassembled it, added boiling water to an ultrasonic cleaner, let it clean for a half-hour …May 10, 2020 · 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: 02-07-2013 06:4948,270. Visit site. Mike2309 said: Very simple Mariner5 air-cooled 2-stroke runs fine on half-choke , dies on anything less. I've had the carb off and cleaned it (though, oddly, I couldn't remove the main jet which is held up in place by a plug in the top of the float chamber . With plug removed the jet seems to levitate in the threaded hole ...The motors are 2000' but have very low hours. One motor runs perfectly. The other starts but runs for about five seconds and then dies. Fuel filters are new. Fuel is fresh - the other motor runs fine. Fuel pressure is fine. I am having a heck of a time getting the mechanics to free up to take this one on.8,646. Sep 5, 2006. #2. Re: 1993 25 hp mercury runs but then stalls and won't start. My guess is it's flooding. But instead of the shotgun approach, why not troubleshoot logically, one step at a time: First, compression test. Report the results. Next, determine for yourself whether a cylinder is dropping:May 10, 2020 · 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: 02-07-2013 06:49Re: runs for a few seconds and stops. PLEASE HELP. Run the engine until the problem occurs, hook up a portable tank, with an outboard style gas pump ball in the line. Pump the ball and see if you can either, get it to stay running, or start after it stalls. Also try to install the ball in between the boats fuel tank and the fuel pump.Here’s a run-down: Make sure that the kill cord is attached. Because your Suzuki outboard won’t start in gear, ensure the engine is in neutral. Inadequate fuel supply is a common issue, either from pinched hoses or a lack of fuel in the gas tank (s). Make sure that there’s no water in the fuel lines. Perform a visual inspection in the ...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.For most 2-stroke and 4-stroke outboard boat motors, the cooling system uses water that is circulated through the engine to regulate temperature and prevent overheating. ... I have a 9.8 Tohatsu cleaned the carb put the leg in a bucket of water started it and it runs fine for about a minute and then dies seems I have to keep pumping the bulb to ...Emrah, There could be a partial amount of fuel entering the carbs. When you run it for 20 minutes you use up all the fuel. Then when it sits for two minutes the bowls fill up again. On each carb float bowl (on the right side) there is a little allen screw. When it dies, try loosening the one on the right carb.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....Mercury 15hp 4 stroke….runs rough on start up. Lacks getting up on plane, and not running full power on plane. Leaning toward a defective coil. Top cylinder plug was black with carbon, bottom plug looked normal. Replaced both plugs, still lacks power. Opened the carb, looked clean, sprayed it out anyway. Still lacks power. Any clues would ...Mar 9, 2012. #2. Re: 1999 Mercury 2-stroke appears to be flooding. mikemnd10 said: Have been frustrated with my 3 cylinder Mercury 2-stroke outboard. If I disconnect the fuel line from the engine, the engine will eventually start and run until the float bowls are empty. According to one of the local marine repair technicians, he said it sounds ...May 2, 2003. Messages. 6,027. Jul 4, 2009. #5. Re: Mercury 50 hp bigfoot with idling / running issues. The id plate is external on the transom bracket. You cannot pull the fault codes without a merc scanner. The control box warning buzzer will tell you if a fault is logged via a series of beeps.This is really an easy fix you can do yourself without having to pay a mechanic. 🔷️ HERE IS PART 2 of this Mercury outboard fix. Finding the high pressure fuel filter: • Mercury Outboard ...What could be wrong with my 5 HP 2-stroke Mercury outboard that. I have a 5 HP 2-stroke Mercury outboard that runs and idles fine when it's cold, but after running a while and coming up to temperature, will die when it's throttled back to idle. It will start right back up in neutral and idle okay, but dies as soon as I put it in gear.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 ...Emrah, There could be a partial amount of fuel entering the carbs. When you run it for 20 minutes you use up all the fuel. Then when it sits for two minutes the bowls fill up again. On each carb float bowl (on the right side) there is a little allen screw. When it dies, try loosening the one on the right carb.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...The good news is that the outboard actually runs, so the problem shouldn’t be hard to fix, it's just a matter of finding out what’s stopping the motor from idling as it should. Watch the video above or read on below to learn how to identify and fix problems with an outboard that won’t idle properly.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.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).Jul 27, 2018 · 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.Sound-deadened cowl exhaust - Outboards built in the 1970s and prior were much louder. Electronic fuel injection - EFI became more popular starting in the late 1980s; it makes an outboard easier to start and run, less smoky and better on fuel, as well as just a bit better than a carbureted engine when it comes to pollution.Finally I'd had enough. When It first started doing this, I attached a fuel pressure regulator to the schrader valve on the high pressure fuel tank, the VST, It was between 40 and 44 psi at idle, but erratic. I was OK with that then because I didn't know any better. This 4 stroke outboard stuff was still new to me.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.What could be wrong with my 5 HP 2-stroke Mercury outboard that. I have a 5 HP 2-stroke Mercury outboard that runs and idles fine when it's cold, but after running a while and coming up to temperature, will die when it's throttled back to idle. It will start right back up in neutral and idle okay, but dies as soon as I put it in gear.Feb 19, 2018 · 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.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.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,Tweet. #1. F225 won't go over 4300 rpm. 04-24-2012, 09:29 PM. Runs fine under 4300 but shakes a little when throttle up to go over 4300 rpm. If I stop shut engine off turn batteries off then back on start engine runs fine , strange I'm thinking electrical, just had 100 hr service done,screens changed,mechanic said not showing any codes.Aug 18, 2012 · 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.Jun 13, 2010. #4. Re: Mercury 60hp Efi Bigfoot Stalling. Hi, I have a 92 Mercury outboard 60 HP that does the same thing. It starts ok, then after it passes 2400 Rpms usulaay in 10-20 seconds in shuts off. today I had to go back to the pier really slow so it wouldnt do it anymore. The carbs have been cleaned 2 months ago and the plugs are new.Mar 16, 2011. #1. I have a 2002 Mercury Outboard 115 EFI 4-stroke that sputters and stalls when I bring the throttle from high to low/idle rpms. To avoid it, I have to bring down the speed really slow. Or sometime when I'm at low idle speeds it will sputter and stall. New plugs, thermostat, and fuel/water seperator filter.. issue: outboard motor (75hp mercury trackIf it isn't, it will cause your engine to become fu 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. Mar 21, 2018 · Mar 21, 2018. #1. Ok... I just purc Its a Honda GXV (390 i believe). The way I got the engine started was by taking off the air filter and spraying alot of starter fluid in it. The engine turned over, and would run for about three seconds, presumably just burning the starter fluid as the fuel. After taking apart the gas tank, removing the filter, ensuring that the On Off fuel ... 70 hp 2 stroke low throttle issue. 04-01-2018, 06:41 PM. Just p...
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