A 1994 polaris 750 sl isn't premix it's oil injected nothing to worry about other than injectors.
Many Polaris 2-stroke motors have an oil injection system that varies the amount of oil required. If a user is eliminating this system, or has a unit without oil injection, the standard ratio is 50:1.
scrap
1994
200 mph
90-95mph
ratio = 3.23
4:10 ratio
This would depend on what type of oil you will be using for your premix. The oil base stock is either petroleum, semi-synthetic or synthetic oil and is mixed with gas at a ratio ranging from 16:1 (petroleum) to as high as 100:1 (synthetic). My 2 stroke I have is a 2001 Kawasaki KDX200 that I run Yamalube 2R at 36:1 with no problems. Although synthetics say you can mix them at 100:1 I would not, that seems way too lean to me.
If you call a GM dealer and give them the VIN# they can tell you what gear ratio you have.
The compression ratio for a 1994 Pontiac Transport, according to the Owner's Manual is 8:5:1.
ideally, 13.7-1
50:1