Scooterotica

dirtyhandslopez wrote:Ran a Wiseco Jets ski piston for a whole summer season, wringing it hard, bore ok, rings needed to be changed, about 3000 miles I reckon. Ran low primary compression, air box, no filter.

What size Jetski piston was it .... 71mm..??

when you say......."ran low primary compression"................
do you mean actually.........secondary comp......as in low comp head...........or do you really mean primary as in low crankcase comp................

i would guess that you mean a low head comp..................
but just wanted to check for sure.........................