Believe me...i love this bike more then anything i've ever owned
Not real sure what happened....it wasn't lean or anything.
I think the piston was a stock one.....Stewart would know.
I did notice however that when i went to drain the coolant a few days after that alot of air pressure was entrapped {first time i ever seen this
}
I used race gas that was about 7 months old ( it was opened 7 months ago} ...not sure if that would cause any such problems.
I may put a complete engine gasket kit in this motor....i did notice that i have lost a small amount of tranny fluid every now & then.
Although i have thought about just putting a new piston & top end gasket hit in