jimmyhighway
Extreme
- Joined
- Feb 6, 2006
- Messages
- 105
- Location
- Northwestern Ontario
- Country
- Canada
- Snowmobile
- 13 Skidoo Freeride 137
11 Yamaha Nypex MCX
I think the RX and Apex had the same helix , a 51/43
rx1 fern
TY 4 Stroke Junkie
So all this talk about purple spring for secondary , what part number should I order . I'm also gonna order the white epi tra spring for my stm rage 8 primary to try out . What at your thoughts on this clutching setup . Thanks
jimmyhighway
Extreme
- Joined
- Feb 6, 2006
- Messages
- 105
- Location
- Northwestern Ontario
- Country
- Canada
- Snowmobile
- 13 Skidoo Freeride 137
11 Yamaha Nypex MCX
Just buy the yamaha part # then you don't have any cat parts on your sled. Sorry I don't know the STM setup. I keep it under 20lbs with a yamaha primary.
rx1 fern
TY 4 Stroke Junkie
What was your spring wrap with this spring . Thanks . Have one now .
mbarryracing
TY 4 Stroke God
- Joined
- Aug 31, 2007
- Messages
- 1,922
- Age
- 51
- Location
- Springville NY
- Country
- USA
- Snowmobile
- 2006 Yamaha Attak Turbo
2015 SR Viper RTX-DX
1996 Vmax 600XT
Try 0-2 first, then 0-3
Last edited:
rx1 fern
TY 4 Stroke Junkie
I went 0-3 . Any difference from 0-2 . Few more things to do then I’m taking it out to test . Finished installing 285 chisels on it . Went midmount header now with a machined 2860 turbo with billet 3071 impeller. Lots of new changes .
