[Catman jake]

Its a stock 550 ext special...i ride kinda aggressively...when should the clutch engage to get peak performance without worrying about burning down...i know its only a 550 but....it engages around 2500 to 3000.....seems early to me? Any thoughts

 

[kccats]

Book says 3500 and peek at 8000! So you could replace the drive spring to get it to 3800-4000 and then tighten the driven to get it to 8k!

 

[RJ Gleason]

Primary spring may be broken.