Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

  • Don't miss out on all the fun! Register on our forums to post and have added features! Membership levels include a FREE membership tier.

Best Cluch Setup for a bone stock M7??

I have an 06 M7 bone stock. it has a 153 inch track. I ride between 7000 and 10,000 feet. I weigh about 160 with my gear on. What weights, springs and helex will work the best. I beleive the sled should run around 7800 rpm is this correct?
 
HAHA, yer funny! Good bait, though, gonna catch a lot of fish with this one. See, everyone likes something different, and every sled is a little different, especially M sleds, for reasons no one has ever explained very well to me. No one "best". 77-7800 rpm is a good target on a stock sled.

I run a mostly stock '05 M7 at 0-6000'...it has a D&D y-pipe, a hacked fuel pressure regulator (running about 42 psi), and a 290 mainjet in the fuel line, efi controller reflashed to '06 specs. I run stock weights for altitude (75g.), with the AC gold spring for low engagement, a straight 38deg. dalton helix, and a goodwin dark blue spring (which you cannot get anymore :( ), but is so close to the AC orange that it probably doesn't matter, preload near zero, and a shift assist in the secondary. It engages easy, pulls hard to 6000', backshifts yesterday, and doesn't fade. May not be the "best", but I run it all year, all conditions, all altitudes, stock 036 belt, which I'll probably change this year, just for good measure.

Good luck,
John
 
furthur has a good setup, but keep in mind his motor should be running better than stock with the y-pipe and fuel being controlled. Also he is at a lower elevation.

At 7-10K run the stock yellow/white spring or the gold. Go with 67g or 68g weights. Stay with the stock 36 degree helix. Change to orange secondary spring or somthing a little lighter. The stock white spring is garbage. Put in a shift assist.

The best thing you could do is machine the secondary into a 10.4 or put on a 10.4. Do some searching on here and you will find everything you need to know about that.
 
I use the M8 orange spring and shift assist in the secondary. Stock primary spring with whatever weights for elevation according to the chart under the hood.

Works great for me!
 
This worked for me (Crossfire 7, 0-3000ft):
- CPC adjustable weights
- Stock primary spring
- D&D secondary conversion
- Cat R/W secondary spring
- Stock helix

For motor:
- I used 310 mainjet in fuel line (290 was too lean - maybe because different fuel here in Finland?)
- D&D Y
- 2 degree timinkey
- BMP pipe mod

Quite cheap stuff but you gain a lot with these. Especially back- and upshift. Worked bullet proof for 2 years (5000 km).
 
Last edited:
Premium Features



Back
Top