1996 Seadoo XP800

[BruceXP116]

Got a 1996 seadoo xp and it keeps on fouling plugs. I know it should not be doing that. My guess is that I am running a bad mixture(over 50:1). What would be the best mixture that I should run?

 

[rusty nail]

because you are running premix i am assuming your machine has a decommissioned oil pump? if it is still operational theres your problem. Also could be bad crank seals.

 

[mikidymac]

It’s really not your premix mixture, it’s your carbs.
Premix should be 40:1 not 50:1 if you run around at full throttle.