2 stroke outboard wont stay running

When hot it will not idle and just cuts out. Already checked fuel pumps and rebuilt them.

Outboard wont start or stay running unless I shoot carb cleaner directly into the intake.

2 stroke outboard wont stay running. - Finding the sweet spot on Boat motor idle. Outboard Boat Engine wont stay running - Adjust Carburetor FuelAir Mixture - EASY - YouTube. Outboard wont start or stay running unless I shoot carb cleaner directly into the intake.

Then it runs great and will stay running on carb cleaner. Already checked fuel pumps and rebuilt them. There must be a problem in between the fuel pumps and the carburetor.

I have a 1985 Yamaha 90etlk 2 stroke it will start and run at WOT but die seconds after putting it to idle. I have cleaned the carbs checked if Im getting gas to the bowls and checked the sparks and everythink seems to be good spark plugs are sparking and removing drain plug from carb and gas is coming out Im at a loss here and need some insight as now I. Checking the timing is super easy google mercury 40hp 2 stroke timing and watch youtube videos on it.

On the air box cover it will say the settings for idle and WOT Wide Open Throttle timing in degrees. Check that and well go from there I have other suggestions if its not that. I know how you feel.

Keep at it be scientific and youll get there. When 2 stroke engine troubleshooting and the engine is flooded you want to spin the engine over fast with the throttle wide open several times. You should start to hear it pop just keep pulling or kicking and holding it wide open until it starts then rev the engine a bit to clean it out and keep it running then warm it up properly.

If so it wont stay on if theres no signal that the motor has oil pressure as a safety issue. An oil pressure switch like an idiot light deal in a car allows the pump to run after you let go the starting action on the key. 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.

94 st 40 wont stay running My dt 40 which is a 94 now starts hard but will only run for a couple of seconds maybe 15. Carbs were done a year and a half ago and just cant figure this one out. I also had it to a mechanic who diagnosed it last year as bad gas.

Mercury 90-HP Two-stroke Classic. Wont Run Above 2600-RPM. Posted 06-04-2007 0247 PM ET US I have only owned this Mercury 90-HP Classic two-stroke outboard motor for less than two months and have run less than 10 gallons of gas from the installed tank over a maximum of four hours running time.

Wait about 10 minutes and try starting again. Do not use the choke open the throttle all the way and try starting again it will usually take at least 2 to 3 pulls. If it doesnt start with a half dozen pulls wait 10 minutes and try again.

Sometimes after flooding it. Possible Causes and Corrections. Attempting to start engine incorrectly.

Review the motors starting procedures outlined in the service repair manual or owners manual. Gasoline tank empty to little fuel incorrect fuel mixture or fuel contains contaminants. Inspect the fuel in tank.

Evinrude 40HP Wont stay running in water. Ive got a 1986 Evinrude 40HP Outboard. Idles fine in the driveway but as soon as its immersed in water it dies out.

On the intermittent occasions I was actually able to finally get it started at the dock it would die after applied throttle continuously for approx 5 minutes. 2-Strokes on the other hand that is a different story. Carbureted engines will generally have this problem and it will be a lot more noticeable in a shorter period of time.

Generally if there is no issue you can turn the engine off for a couple of hours and never lose prime. 25 hp 2 cylinder2-cyclce outboard Merc wont start without carb cleaner and stay running. Remixed gasoil cleaned fuel filter replaced bulb on fuel tank checked gas from filter to carb OK changed spark plugs and checked spark.

I noticed plugs were dry after several trys to start engine. A number of things can go wrong within the workings of a 2-stroke engine. However with the proper maintenance and diagnostic ability many of these issues can be prevented.

ProX put together a list of 12 key things to keep your 2-stroke running strong. 15hp Evinrude Wont stay running First you should check the tank inlet screen and the fuel pump screen. If they are fine disconnect the fuel line at the carb.

Pump the bulb slowly until you get gas then pull the recoil several times and check to see it is pumping as it turns overPut some rags in the cowl before you start. We mainly see this issue on two stroke outboards. The reason is pretty quick and simple.

With the exceptions of Mercury Optimaxs Yamaha OX-66 HPDIs and Evinrude FICHT and E-TECs most two strokes are not computerized. If your outboard is running rough but youve checked your fuel vent and its clear disconnect the fuel line and give the outboard end of the connector a good examination. If it appears OK inside but the outside is corroded and worn consider replacing it with a new one.

There may be a blockage or failure you cant see inside it. Modern outboard engines have come a long way whether youre talking about the now-common four-stroke or modern DFI motorsIn both 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. Yesterday i was out fishing it started right up and ran at top speed for probably 10-15 minutes then it bogged down and although it was still running it acted as if it were running on one cylinder or a fuel problem.

I shut it off pulled the plugs which looked fine and within 10-15 minutes of setting started it up and it ran perfect for about 5 minutes this time then did the. Check to make sure that the shifter is not in forward or reverse. 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. Yamaha 40hp 2 stroke I have a manual tiller 40hp EX40 2 stroke outboard motor engine having issue with engine cannot rev up.

The engine starts up perfect but when reving. 225 horsepower Yamaha ox66 My 225 horsepower Yamaha ox66 starts up just fine but smokes more than usual at startup and at low speed idle.