PeterWhite

Hi, I just bought a Summit 600 2000. I want to reduce the clutch engagement on it, According to the Comet chart, with the standard spring and arms(A1) the engagement is around 4400 RPM, I would like to change the clutch spring to have the clutch engagement arount 3500 RPM. Reason why I want to do that is because I most of my riding off-trail in the wood where I often stop and start.I know that the available torque at this lower RPM will be less so I will probably have a lower accel but I don't really care about the fast accel. Can I expect any bad surprise or any negative impact if I reduce the engament RPM.
Any comments will be appreciated.

Tks

clodev

this is not an answer for you but i want to know the same thing. i have a 85 yamaha ss440 for my wife and would like the cluch to engage a little lower down the rpm chart.

__________________
Clode Vaillancourt Muskegon Mi

1996 SkiDoo Formula SLS 500 -mine

1999 SkiDoo Formula Z 500- Pams


Sold 12/19/9


Sold 8/19/9


"What ever you do don't eat the Calamari"

RJ Gleason

The A-1 arm is 48.5 grams.
To get a lower engagement rpm, you will need to go lighter.
Looking at the chart, the A-3 arm is 44.9 grams.
I'm just guessing there, but I think that will put you in the 3000/3300 range.

__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Trail Boss; Dryden to Summerhill trail.
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Junior Warden; F&AM Dryden Lodge# 472

MTDOO

I am not sure you need to mess with the clutch. I have been on the same sled out of the showroom and set up to engage at 4,500.
I have been to Revy, Big Horns and lots of places with pretty deep powder. I have 7,500 miles on the sled and have never had a problem starting in deep powder with that rpm engagement. I would ride it a while and see if the high rpms are an issue for you. I have found once I engage it is not necessary to nail it. I get enough track speed and rpm's to dance out of most stuff I get stopped in. I think there is a need for the rpm's up with that short track and my sled does not bury itself unless I really nail it. Experience will tell!! Just my opinion.

PeterWhite

Hi MTDoo,

Tks for your advise. I think you're right. I'll wait and ride it like it is right now.
I have to get used to it. This sled is totally different to the one I was previously riding. I use to have a one cylinder Tundra (24 HP). The more I use it the more I enjoy it!!!!! A lot more fun!!!!!

What I am planning to do is to buy a rail extentenson and go with a 151" track. I have another sled on which I can use the 136" track.

Regards

Pierre