600RR looking for some help with clutching

General007 · Jan 20, 2010

Currently running stock set up. I'm putting a 121" 1 3/4 track on it im just wondering how to get this thing to run a little better. It currently has pretty good pull off the line but once it gets around 20 to 30 it falls flat on its face. It peaks at 8000 to 8200rpms. I dont want a clutch spring that engages wicked high the sled already is terrible for traction. I'm just wondering if anyone has had any success with set ups or anything. i plan on converting it to a 660 next year, but for this year i'm just looking for some help.

General007 · Jan 20, 2010

Also to add to this I ride in Vermont which most of my riding is done between 1000-2000ft not sure if this will help any I just know theres different set ups for higher and lower elevations, thanks

RMK-King · Jan 20, 2010

EPI maroon spring with 10-60s is a good combo. If you want a harder holeshot go with the EPI gold and 10-62s,thats what I run and I like it. Running the 1 3/4 SnoX track with 96 studs,hooks up good enough to drag the back bumper on the ground.

General007 · Jan 20, 2010

Alright thanks does changing the secondary spring actually do anything for performance or not noticeable enough to do it. And have you done anything to your gearing??? Thanks

skis_n_skid · Jan 20, 2010

Going to the taller lug track you might want to drop a tooth on the gearing.

crf118r · Jan 20, 2010

Anybody know of a tunnel ext. for the RR that doesn't need to be modified for the rear cooler, in other words a 600RR specific extention?

P.S. Sorry for the highjack

General007 · Jan 20, 2010

Im not sure if the ones on Tracks USA you have to or not. Or I would try jspowersports

gotthefever · Jan 20, 2010

I just put on a Tracks USA and it fit perfect. No cooler issues at all.

General007 · Jan 20, 2010

Any other suggestions for set up on the RR

General007 · Jan 21, 2010

Has anyone done anything to the secondary ???

champyfz450 · Jan 21, 2010

Sledmax said:
EPI maroon spring with 10-60s is a good combo. If you want a harder holeshot go with the EPI gold and 10-62s,thats what I run and I like it. Running the 1 3/4 SnoX track with 96 studs,hooks up good enough to drag the back bumper on the ground.

Sledmax, what gearing are you running with this setup? I use the gold and 62's and pull about 8000rpm, I like it but like you said yours hooks up well enough to drag the bumper but mine doesnt at all. BTW Ive tried everything possible to bring the r's back up with no luck getting to 8300

crf118r · Jan 21, 2010

gotthefever said:
I just put on a Tracks USA and it fit perfect. No cooler issues at all.

RR has a big cooler sticking up through the top of the rear of the tunnel.

RMK-King · Jan 23, 2010

champyfz450 said:
Sledmax, what gearing are you running with this setup? I use the gold and 62's and pull about 8000rpm, I like it but like you said yours hooks up well enough to drag the bumper but mine doesnt at all. BTW Ive tried everything possible to bring the r's back up with no luck getting to 8300

21/43 gearing with the 76 pitch chain. I was pulling around 8150-8200RPMs last year. I am at work and dont have youtube or I would post a link of it running with that setup. Look up 07laramie on youtube and you will find it.

champyfz450 · Jan 23, 2010

Sledmax said:
21/43 gearing with the 76 pitch chain. I was pulling around 8150-8200RPMs last year. I am at work and dont have youtube or I would post a link of it running with that setup. Look up 07laramie on youtube and you will find it.

after watching your video i feel like going out to the garage and setting mine on fire lol. Im gonna play with the rear susp a little to see if that makes her a little more fun. Im completely out of ideas on getting those 300 rpms back

RMK-King · Jan 23, 2010

champyfz450 said:
after watching your video i feel like going out to the garage and setting mine on fire lol. Im gonna play with the rear susp a little to see if that makes her a little more fun. Im completely out of ideas on getting those 300 rpms back

I have the 1.75 SnoX track with 96 studs,my rear suspension is setup with the stock race dept settings. When I first bought the sled it would hardly pull the skis up,dropped 8 jet sizes,clutched it and now it runs like a different sled.

Here is the link to the vid so others interested do not have to look it up.
http://www.youtube.com/watch?v=Cq88ye20tx0

champyfz450 · Jan 24, 2010

Sledmax said:
I have the 1.75 SnoX track with 96 studs,my rear suspension is setup with the stock race dept settings. When I first bought the sled it would hardly pull the skis up,dropped 8 jet sizes,clutched it and now it runs like a different sled.

Here is the link to the vid so others interested do not have to look it up.
http://www.youtube.com/watch?v=Cq88ye20tx0

Sounds like my setup is the same as yours except im running 390 mains instead of 380's. The only idea I have left is that my neils pipe is not getting hot enough as I dont have it wrapped or ceramic coated. I could prob lose 200 rpms there

RMK-King · Jan 24, 2010

I am now running a 66-44-46ER Helix with a EPI 160-240 sec spring,seems to work better all around.

I am also now running 370 main jets and still only hitting 1180 on my EGTs at WOT. I cant believe how far you can drop the main jets on these.

champyfz450 · Jan 24, 2010

Sledmax said:
I am now running a 66-44-46ER Helix with a EPI 160-240 sec spring,seems to work better all around.

I am also now running 370 main jets and still only hitting 1180 on my EGTs at WOT. I cant believe how far you can drop the main jets on these.

Im running the same in the sec but Id like to try those 370's! I bet theres alot to gain there in dropping 2 jet sizes. May pick up 100-150rpm with that move

RMK-King · Jan 24, 2010

If nothing else your fuel mileage will noticeably improve. Do some plug/wash checks to make sure your not to lean if you do the 370s,every motor seems to react a little different so its better to be safe then sorry. My sled runs the leanest at 7000RPMs,if I hold it there I can get up to 1250 on the EGTs.

General007 · Jan 24, 2010

So are you using all stock rear suspension set up if not where did you find your info to improve the sled

600RR looking for some help with clutching

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