2016 Ski doo Mxz Blizzard 800r etec, 1997 Ski doo Formula z 583 mod
I have a 2016 ski doo mxz blizzard 800r etec that is giving me issues with starting after an engine rebuild. It has great spark, 140 compression and is getting fuel through the injectors. I also changed the plugs several times. It fires when i crank it but doesnt stay running. it backfires when you hold the throttle. i am needing suggestions from sledding veterans that have experience.