> I own a 1993 Ski-Doo Formula Plus EFI, in which I blew a hole in the piston
> last weekend. As a result, I destroyed the piston, pins, bearings and crank.
> Also, would anyone have any theories as to why this happened? The Ski-Doo
> dealer who currently has the machine can't seem to figure it out yet. I was
> running premium unleaded gas with gas line antifreeze, Amsoil synthetic oil,
> doing 130 kph in -16C (3F).
advanced timing or faulty CDI, too hot of spark plug, too high of
compression ratio for the octane used. Basically you are creating too
much heat from somewhere??
< 1K Download