Oil Injection Pump Question

[Brianh64]

I have noticed lately that if my ski (2000 GTX RFI) sits for a week or two a good amount of 2 stroke oil seems to get into my cylinders. The oil will be enough to foul out my plugs and when it does fire off it will put out a ton of smoke. Anyone else have an issue similar to this?

 

[Sportster-2001-951C-Stock]

Probably you have a leaking crank seal allowing oil to leak from the RV(rotary valve) drive gear cavity into the crankcase. You can install a manual ball valve or electric solenoid valve(no p/n, sorry) in the RV cavity supply tubing.

It's pretty common to have some seepage over time.

But, check the oil injection nozzles in the intake manifold, the internal spring-loaded check valves might be stuck open and just need to be cleaned with a solvent and air flush.