96xp 787 not running full power

[Darryl stahley]

Had put oil in the gas when we bleed the oil lines then the sky was fowling plugs so I put fresh gas in sky ran fine for a little while now only running at 70 percent and seems to be getting a little worse

 

[racerxxx]

Have you checked the compression? Compression tester, ground the spark plug boots, crank the engine with finger wide open on the throttle.

Any back ground info?

 

[Darryl stahley]

Checked compression a week ago it was 135 back 140 front

 

[gsus67]

Did you get your ski to run with full power

 

[IDoSeaDoo]

Your compression sounds low. Might have cooked your rings. What RPM are you getting to? Does it ever backfire on you? If so, that's a lean-condition indicator. If you're running full rpm and getting a lot of cavitation at take-off, you might have a bad wear ring, or impeller (or both). Have you inspected your rave valves? If those aren't opening, you'll have shit performance up top. Your engine will "wake up" when those things open up. Should occur around 5k rpm. Have you checked your fuel/water separator? If you have a bunch of water in there, it'll run like ass. There are so many potential reasons why a 2-stroke can run poorly... need more info.