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HCS Snowmobile Forums > State and Province Snowmobile Forums > Canadian Snowmobile Forums > Ontario

hanker 800
I know this will sound stupid ... :frech32: But what should the compression be per cylinder on a Two stroke 1998 Formula Deluxe 500 :no_bashing:
FreezerBurnt
130on the low side

140average
FLYINREDSABERCAT
IF I REMEMBER RIGHT 115-120 PSI , BUT REALLY BIG THING TO LOOK FOR IS BIG DIFFERENCE FROM ONE SIDE TO THE OTHER . IT,S BEEN A WHILE SOMEONE MAY POST WITH CURRENT KNOWLEGE :fluffy:
FreezerBurnt
:beer:
racegas
Anywhere from 120-130 psi, for proper comp test let the sled warm up first, keeping in mind rings do expand, this will give you a pretty accurate reading!
FreezerBurnt
The Rotary Valve engines have higher average compression than the reed/piston port/case reed type engine
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