pop quiz hot shot what the h#$( happened?

[egraves]

dunno if this picture will "upload" and post like this, or if I will need to upload it elswhere and point to it... if not I will correct.

as you can see the rear (pto I think) piston is toast and the front one was on its way out.

This rotax 657 out of my 94 xp had a Rossier modified head and rotary valve and was getting a wopping 190lbs compression!

Went through a SBT recommended break in procedure and was running great through about 5 tanks of gas. MAN THIS THING WAS FAST AND POWERFUL!!! I was using premix at 36:1 and running 92 octane pump gas...

gonna rebuild obviously. any suggestion to prevent this from happening again? and what rebuild kits are best?

thanks so much.

[ April 05, 2004, 07:17 AM: Message edited by: Technical Support ]