[jwarner12]

I am looking to buy an 03 f12x with 55hrs. that I test rode all weekend, but it will not reach top speed. Everything about the ski seems to be working fine, starts easily, accelerates smoothly (probably slower than it should), and rides great. It is just slow. During acceleration I can hear the whistle of the turbo, but it doesn't seem like it is doing its job. Any suggestions, or possible causes.

 

[glockm22]

You hear the Turbo Whistle? Check to make sure all the hoses are tight and their isn't a crack or somthing somwhere. I never hear the turbo whistle on mine so you might have a airleak to the intake bypassing any boost?

 

[fedorov5549]

change spark plugs, check oil and air filter.

 

[jwarner12]

Thanks guys. I think I have located the problem, the waste gate solenoid has apparantly gone bad and stays closed therefore the air coming into the turbo is going to the waste gate actuator and causing it to open. As soon as the turbo spins the waste gate opens and all pressure is lost. Hope this helps anyone else experiencing the same problem.