So after the season was done we compression tested the sleds in our group. Most of the sled were around 120 or 125 (mainly ski doos) I have a 1998 Indy 500. Mine was 90, but it was 90 in both cylinders. Its not like the sled is slow either itll still do 85, and can smoke any of the other 500's in our group to 20 or 30. Any knowledge on the compression would be great.