compression doesnt tell you everything
A compression check will not tell you if you have wear like a leakdown test will. Just because you show even cranking compression does not mean you have not had wear on the rings and pistons. Piston/ring seal is critical in a 2 stroke engine, the more blow by you have the more the engine will be down on hp. You are putting burnt fuel charge back into the transfer ports and into the case contaminating the fresh fuel charge thats being compressed in there. I would not reccomend the advice given here to just keep running it, you may have a sled that will keep on running with no problems, but it certainly wont be running at its full potential. The srx/viper engines see alot of wear on the intake side of the skirt, I just completed a 2002 srx for a guy on here and the sled was absolute pristine condition, it ran fine and showed 132psi in all 3 cylinders, yet the pistons were worn 1 mm past the minimum spec ,the pistons are entirely black, have a bright silver spot on the intake skirt where it was rocking back in forth in the bore and was wearing the skirt thin, the wrist pins were blue,wristpin bearings black from running yamalube its whole life. The oil you run has alot to do with the wear youll see when you take off the cylinder, if your pistons are all black from the bottom ring down, you have blow-by!, if the wrist pins are blue,and bearings black, you have junk oil! Oil selection has alot ot do with engine life and componet life, the better the oil, the longer the engine will live. Is there the possibility that its fine???, YES< as long as its been run on full synthetic oil and its been maintained, but do a complete check up on it, a compression test is not the fail safe method, thats for sure! Remember 1 thing, full synthetic oil is much better at protection of parts then the old petroleum based oils are, you cant beat technology!!