Yamahashane
Extreme
- Joined
- Jan 12, 2016
- Messages
- 54
- Reaction score
- 7
- Points
- 28
- Location
- Ontario
- Country
- Canada
- Snowmobile
- 2016 srviper mtx 153 mpi turbo
190 mpi turbo on 2016 viper, right now my mid range and top end are perfect as to rpm. But i cant seem to bring my rpm higher then 2900 at engagment, would like to see 3500. I changed primary spring to haucks red spring which is one the stiffer ones.. Also took some weights off the heels. Only gained 200 rpm at engagment. Any other things i can try?
