96 XP 800 plugs fouled with oil after high speed shutdown

[Papa5633]

96 XP 800 plugs fouled with oil after high speed shutdown.

 

[mikidymac]

We need more of an explanation. Did you do a plug chop correctly with brand new plugs?
Any running issues?
Pictures of the plugs?

 

[Papa5633]

We need more of an explanation. Did you do a plug chop correctly with brand new plugs?
Any running issues?
Pictures of the plugs?

Not new, plugs were used the previous season. Gap is to spec. Ski started up just fine, but did seem to produce more white smoke than expected while idling out of marina. Acceleration was very quick and smooth, no hesitations or bogging at all. After running nearly full speed for about 30 seconds I shut down to idle, engine stropped and would not restart even after multiple attempts with a minute or two between attempts. Once I got home I pulled the plugs and they looked normal (?) See pics. Re-installed plugs and ski started up on trailer with no problem.

 

[burtshaver2021]

I don’t think it’s fouled plugs. Check your compression

 

[Papa5633]

I don’t think it’s fouled plugs. Check your compression

Will do. A little history on the XP 800. It was sitting in a garage for the last 10 years and I managed to acquire it for free. I have since replaced all the old grey fuel lines, oil and gas filters, selector switch and battery. Also drained and cleaned out both tanks. Rebuilt carb using genuine Mikuni OEM parts. Also set pop-off pressure per spec. Since it started and ran excellent during acceleration and high speed, I figure all the carb adjustments are okay. Will check compression as that is something I have not done. I also just noticed that the oil injector alignment setting is off a little, so that needs to be done as well. Would that cause the excessive white smoke while idling?