sx600 piped, clutching

[miikkeli]

can somebody help with clutching of my sx600 with psi triples on it.

i already have a 8ca weights and 51/43 (rx1) helix. And then i have 8cr,8dg weight myself

sled is not yet ready, but then when it would be ready. Would be nice if the adjustment would not be quite lost. It would be a good start to fine-tune.

I could apply this model in any other clutch settings. example 600srx or 700sx. because there is not much info about clutching 600 piped redhead.

 

[A couple of bucks]

This came from the tech section. I realize you have PSIs but this was the only one there. What year is yours?

99 SX600 w/Bender pipes

51/43 Helix, 89-L weights no rivet, stock springs, and stock gearing. Jetting: 140 mains.

 

[yammy]

whats your elevation? what year sled is it?

 

[miikkeli]

99 year, i have seen that in the tech page, but 89l is hard to find and new ones cost about 175 EUR here.

So if i can use those 8ca or 8cr with good results, thats would be better.

And i build a watercross sled and i ride almost sealevel 650ft.

 

[miikkeli]

what is the difference on 89a and 89l because i own one set of 89a, if i remember correctly. Is that so old weight that technical information books doesnt know anything about it.

 

[A couple of bucks]

The 89a-10 looks like it 46.7g. The 89a-00 looks to be 46.7g.
http://www.totallyamaha.com/snowmobiles/aaTECH/drivespecs/clutch_parts2.htm
The 89L looks like its 43g
http://www.ebay.com/itm/Yamaha-snow...D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557
Use the zoom feature on each picture.

 

[A couple of bucks]

Ya know what, I got to thinking about it. My kid has same sled,an 8BVFA and I put 8CAs in his as well. Can't remember the rivets. I'm thinking .8g in the tip.

 

[A couple of bucks]

But then again, his is single piped.

 

[miikkeli]

Yes its 3,7 gram heavier so can i grind the 3,7 of each weight. I found the chart of 89a weight on 2008 techical information book. But 89l weight i didnt find on any book. And that link on ebay itt ended before i see it.

Whats part of weight i should grind tip,center or ?

And weight has only one rivet hole so its have to be 89a-00

But if somebody have a good clutching setup for 600sx piped , i wanted to know

 

[yammy]

Try this should get you close) 8cr weights with a 13.3 rivet ,inside hole
w/s/w primary spring or a green psi spring( if you can find one)
51/43 helix ,or close to it
14.5 mm rollers
70 * wrap on sec.
run at 9000 rpm!
gearing at 21/40

Do you have the right jetting for those pipes?

 

[miikkeli]

not yet, but i think thats not a problem. but if you know right jetting that would be easier to start tuning it.

i will try that when i get sled ready to ride. 13,3 rivet, did they even make so heavy ones. only have to buy the spring.

And if i want higher engament like 4500rpm or maybe even higher what spring i have to use.

 

[yammy]

the 13. 3 is length in mm. (3.1 grams) psi 's are funny pipes, you actually have to jet down with these pipes, instead of up! and raise just two of the three needles.

 

[miikkeli]

one more question. do you mean long or short spring. because i own both covers and i dont even no anymore what is the stock cover for that sled.

And which one should I use. which one is better to use.

 

[captnviper]

99 was first year of the tall cover. Also there is 89a-10 and 89a-00 the -10 weight 47.5 and have 2 holes.

 

[captnviper]

Olaf aaen's clutch tuning handbook contains all that info and more in one spot.

 

[yammy]

one more question. do you mean long or short spring. because i own both covers and i dont even no anymore what is the stock cover for that sled.

And which one should I use. which one is better to use.

This is for the short cover, and 2000 was the first year of the tall cover for that sled!