Waverunner wave venture 701 engine problem

I have a 701 Waverunner 3 seaters, I just check the compression and I have 150 PSI on both cylinders, the spark looks very good on both spark plug, the engine start very easily but when I give a little bit a gas the engine dies, ,

the battery is fully charge,

the gas tank is full,

the engine was well winterized ,

I open the carburetor on 2018 they were in very good shape, I only put premium fuel and Av gas for the last tank of the season ,


thank you for your help,
 
Oh YEs I did put it and then I when 5 minutes in the water for the gas stabilizer to go through the carbs and also put Av gas because the gas is good for 2 years before it starts to deteriorate
 

Mike W

Infidel
Location
North Florida
Make sure your fuel tank check valve is functioning correctly. If it’s bad, it will let the entire system pressurize and cause this. I just went through this a few months ago. Loosen your fuel cap to let the pressure out of the tank. If it runs like it should than that’s your problem.
 
thank you Dylan ,Yes it does, I know it could be a problem with the old waverunner, I have open and check the selector valve,
the problem was the carburator
 
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