Won't start

[Darryl stahley]

carbs cleaned end of last season , stabilizer in the gas, new plugs , new battery and it still won't start all though it will start if I spray started fluid in the cylinders but not all the time and also getting some backfiring any ideas ?

 

[RodInEscondido]

Help us out here by adding ski model/year in your profile and engine size in post so we old folks do not need to look it up.

In general ...

Do not use starting fluid, use some premix gas/oil at 40:1

Sounds like fuel system and there are lotsa good info here on what needs to be done to clean things up: gray Tempo fuel line replace, fuel selector clean/replace, carb clean/rebuild, gas water separator clean and insure seal is good.

Well, that is a start.

 

[Darryl stahley]

Sorry it's a 96 XP 787

 

[Darryl stahley]

When I get the ski started I sounds strong but I checked the pressure in the cylinder and one cylinder was at 150 and the other was just over 120 could that cause it not to want to start

 

[bjg214]

Just to be certain, have you checked to make sure you're getting spark? Also, if you have the plugs out and crank the motor, do you get oil spitting out of the cylinders?

 

[Darryl stahley]

I get shark no oil spitting out of cylinders

 

[mikidymac]

With the cylinders 30 psi difference between them you have a mechanical problem. Sounds like the low cylinder seized a piston.

 

[Darryl stahley]

Yup I'm now at 125 and 100 in the cylinders time to tear it apart

 

[RodInEscondido]

Ughhh! Good luck ... still a lot of help out here for you, but I am not familiar with that engine.

 

[mikidymac]

Pull the head.