Torque spec for the Sidewinder primary?

[dsimonRX1]

i can’t seem to find the torque spec

 

[XP123]

First torque to 108 ft lbs. Then loosed bolt and torque to 43 ft lbs. The 108 is to set it on the taper and then back it off and set to 43.

 

[Chris Rose]

i can’t seem to find the torque spec

torque to 108 ft.lb. loosen bolt and retorque to 43 ft.lb. as per factory spec.

 

[dsimonRX1]

Thanks guys

 

[ROCKERDAN]

 

[apexgt4life]

Is this a change for just sidewinder or all vipers as well

The old 89 or whatever it was seemed good. I was cringing bringing this thing to 108. Seems like bolt was stretching or something was gonna break?

 

[jonlafon1]

Been spec on sidewinder since 2017.. And yes 108 is a lot of torque.
I just popped my primary off on my 2022 and it came off very easy. Guessing because it was new..
Off to Thunder clutching for a balance

 

[apexgt4life]

Been spec on sidewinder since 2017.. And yes 108 is a lot of torque.
I just popped my primary off on my 2022 and it came off very easy. Guessing because it was new..
Off to Thunder clutching for a balance

Only sidewinder or viper as well and older say 15?

 

[jonlafon1]

Only sidewinder or viper as well and older say 15?

I do believe the torque spec is DIFFERENT on the viper.. You try a search or post on the Viper forum?

Viper Torque Specs

From Version2 of 14 Yamaha Service Manual

www.ty4stroke.com

 

[DMCTurbo]

TD recommends retorquing to 60 ft/lbs.

 

[DennyTuna]

Is this a change for just sidewinder or all vipers as well

The old 89 or whatever it was seemed good. I was cringing bringing this thing to 108. Seems like bolt was stretching or something was gonna break?

The Viper is different, first torque is 85 ft lb then 43 for bolt.

 

[1nc 2000]

I run a fx nytro clutch on a sidewinder and torque it with the sidewinder method.
The bolt torques good and doesn't feel like your reeling in a log like it does with the sidewinder primary.
Throw the sidewinder primary on the shelf and leave it there!

 

[justinator]

Hurricane recommends 85ft lbs, run the engine for 5 minutes and retorque to 85ft lbs. Same method cat recommends but at an increased torque level. Lapping the taper like Knapp has mentioned before makes the clutch feel so much better when installing........reduces that feeling like the bolt is growing on ya.

 

[Kevin]

Hmmmmm
Lots of different info

 

[Turboflash]

Just FYI - stock Cat spec is 51 ft lbs. Run engine 5 minutes, re-torque to 51. However, I've seen too many that show primary slipping on stub so I moved up to 60 ft lbs AND lapping all primaries. Seems to have stopped slipping problem. Also, when checking torque 1000 miles later, with lapping, the bolt doesn't seem to loosen.