what weights to run for 6-7000 ft and bigger track?

[hot rod rooster]

hey guys here is the million dollar question. i am running my 03 mountain in the mountains for a bit here this winter stock (pre-turbo) and would like to get the clutching close the first time. here is what i will have done to the sled

-ecp kit with 160 mains
-162x2.5x15x3" pitch camo and 7 tooth extros
-change gearing to 20:42
-cat rear skid with 2 wheel big wheel kit
-slp powder pro skis

most everything else is stock

would like to know what primary weights (cheapest also counts) and clutch spring. i am going to be changing the primary to a p-85 and the secondary to the hyperlite but that will be later this winter.

any and all help is greatly appreciated!!!

 

[RED]

Put in the 05 primary specs. Just did 2 04's, works much better, don't know the part numbers. Different weights/rollers/spring, secondary is still the same. You can fit a 43 in that chaincase if you want to. Done a couple of them.

 

[hot rod rooster]

hey red thanks for the info. you don't know off hand the weight of the primary weights do you? the sled in your avatar looks pretty nice why no post a pic on here so i can see it better. where abouts in alta do you live?

with the 7 tooth 3" drivers i am geared a bit lower than if i had the 9 tooth 2.52 driver on i thought 20:42 would be enough espacially when i put the fan on!

 

[RED]

I think that the weights were around 45 grams, then moutain spec was to add about 6 more grams with 14.5 rollers. I can find out the info for you if you want.

 

[hot rod rooster]

that would be nice red!

 

[Frostbite]

If you have some 8DN-00 or 8DN-10 or 8DN-20 weights lying around try them. I used the 8DN-00 with (for your altitiude) abour 55-56 grams and it's about as much fun as you can have with your clothes on :shock:
Use the O/S/O spring with a silver scondary at 80 degrees and you'll be lovin life. The only downside is 86mph on the speedo is all I could ever muster but what was fun is how fast you got there. They make the sled super fun with better than two stroke throttle response.

Frosty

 

[hot rod rooster]

i'm new to this yamaha clutching ligo and from what i see so far i don't like it!! what is with the weighnumbers here?? and what is with the rollers being changed? no wonder everyone likes the polaris p-85 (including myself) i will be going with that clutch sooner than previously thought. #10 profile weights and then just pick your grams and spring and your done.

these yammy's may be as complicated as the doo TRA

 

[powder muncher]

My dealer gave me a poster of all the clutching parts availabel , if you have that it will start to make sense . I like the yamaha stuff, if you get the hang of it it works great and is much better quality.
Try 8DN 20 weights with 14.5 mm rollers and a short spring green pink green or yellow pink yellow Start around 50 grams .
I use lead for tuning the weights after that I replace it with steel rivets for permanent use.

As for the different size rollers you can use a smaller roler to increase your shift force or a bigger one to decrease it.