Just got done installing a brand new reverse kit in my '97 Ski-Doo Formula Z 583. Forward works flawlessly, however when I put into reverse and give it throttle it starts to move very slowly and as the clutch engages, it makes a terrible high-pitched grinding sound! Metal flakes in bottom of chaincase too after. I tightened my chain as tight as I could by hand and it said to back off only as far as to get pin in, i was able to get pin in but I think it's too tight. I also read belt deflection being off could cause the same problem. Really bummed as I thought it would work great....what could be wrong???
Belt defection would not have anything to do with the flakes in the case!
Sounds like your gears arn't lining up right .
Pull the cover and see whats binding . Clean it all up and work the reverse and make sure it shifts in place. Sounds like your linkage is not right and it's binding up .
You can test it with the cover off too so you can see whats what. Just don't ride it
btw your chain tension is correct...finger tight ..backoff to the 1st hole ..set pin.