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- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
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Engagement: 3,800-4,000 rpm
Shift RPM: 11,200-11,700 rpm (dependent on conditions)
You will see an increase in low end to midrange acceleration (more "snap" or "punch"). The top end remains about the same (90 +/- mph depending on rider size and conditions). The clutch kit really increases the "fun factor" of the Phazer.
The kit consists of a new primary spring and weights which can easily be installed with the clutch still on the sled.
Shift RPM: 11,200-11,700 rpm (dependent on conditions)
You will see an increase in low end to midrange acceleration (more "snap" or "punch"). The top end remains about the same (90 +/- mph depending on rider size and conditions). The clutch kit really increases the "fun factor" of the Phazer.
The kit consists of a new primary spring and weights which can easily be installed with the clutch still on the sled.


yzf1999 said:Will the kit change my engagement...I like the stock rpm clutch engagement(FX)..
No not noticably.Very smooth.Still tight trail friendly.
sinjin
Expert
Allan, does different rider weight affect the weights/spring that is used or is it the same for all. Thinking of ordering one. Dave
- Joined
- Apr 17, 2003
- Messages
- 5,467
- Reaction score
- 1,264
- Points
- 2,003
- Location
- Menno, SD
- Website
- www.ulmerracing.com
- Country
- USA
- Snowmobile
- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
- LOCATION
- Menno, SD
- WEBSITE
- www.ulmerracing.com
Rider or track height are adjusted with secondary spring tension (adjusting the secondary spring settings of the stock secondary spring).
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