I know this has been beat to death over the years but.... Just had the dreaded sprocket failure on my 16 F3T SM6 Seminole Pwr Sports did the change out and BRP paid for it. All good, got 30k out of it before failure. But.... I always had the minor vibration between 60-65 that eased up when speed steadied out or at least became much less. Now the vibration is much worse and runs between 60 and 72. Belt tension is in spec at 180 ftlbs. and the belt alignment is spot on.

Opinions on lowering belt tension... have hesitated so far on getting one of Lamont's tensioners.

Pat