snowbeast
TY 4 Stroke God
- Joined
- Apr 13, 2003
- Messages
- 5,498
- Reaction score
- 780
- Points
- 1,883
- Location
- E waterboro,maine
- Country
- USA
- Snowmobile
- 2015 apex xtx traded for a 2017 sidewinder L-tx-le
- yes
- YOUTUBE
- yes
stock sled on SW with stock muffler and no tune is 8750 rpms this is normal,plus or minus 200 which is also normal,for clutching,it states max rpms in our book from Yamaha and every dyno report confirms the max rpms are 8750 stock,yes it will be raised with tune and muffler,the reason some are raising the rev max limit switch to 9500-9700 when woody ran the protos out west last march the one he was ripping up the airstrip on was overevving to 9000-9100 but was on the losing end of power,but up into OD and running out of gear at 123 gps,so shoot for 8700-8900 on a stocker and you will be good to go,but the short races you need traction and clutching,two of which we found out on 3 different grass drag races we did,all at 400 feet,and most all we lost out of the hole and for the first 100 feet,after that we were running them down.