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Setting up clutches
- Is there a "how to"?
started by XLT96rider
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September 20th 2009 at 12:23 AM
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XLT96rider
Other sports play once a week, but this sport is with us every day.
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942 Posts 
Group: Members
Member Since: January 7th 2009
Location: Wausau, Wisconsin, USA
Current Sled: 1996 Polaris XLT Special
2008-2009 Miles: 1000+
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I've been pondering this whole clutch issue. Does anyone have any kind of chart or something that tells if using a "X" colored spring with "X" cam arms what the engagement, shift, backshift, etc.. is? I've been looking for clues on this for a while and haven't found a thing, not even a hint.
Like this:
Polaris Blue Primary spring (120/300) with 10M-5 (49.5 gram) weights.
Engagement is XXXX rpm's
Shift up is XXXX rpm's
How the backshift is?
I think this would benefit a lot of people if there was something. OR is it just guesswork?
Or is there possibly some sort of equation for figuring this out?
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Site Supporter
Group: Site Supporters
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September 20th 2009 at 12:41 AM
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stormrider62033
wally
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4729 Posts 
Group: Members
Member Since: December 25th 2004
Location: Gillespie, IL, USA
Current Sled: 99xcr 800
2008-2009 Miles: 500
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Oh yea this can be fun in the sun ,some people on here know that and i think they have charts
mid Il alway's waiting for snow,moving north(way north)2001 thundercat 99xcr 800 97SPX ULTRA 96 zrt 600&800,92 doo plusX 92 v max 4 750
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September 20th 2009 at 8:49 AM
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xtralettucetomatoe580
Tan Berets lead the way
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2419 Posts
Group: Members
Member Since: October 4th 2005
Location: Hunter Army Airfield, GA, USA
Current Sled: C17, C130, UH, CH, Lil's
2008-2009 Miles: 950
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It all depedends on your sled really. There is no chart that is universal really. Your best bet is to find where you make peak HP at what RPM. Decide where you want your primary to engate at. Whether you want it to be agressive and start at like 4000 RPMs or a little more gentle. Than find out how that rate affects your RPMs on top, and adjust your weights from there. Than if you throw gearing in there it will change it all up again. Adjsutable weights are great for tuning so you dont need to drop 50 on new weights every time you change springs. Lot of guess and check is how I always went about it, but finding a guy with the same sled and robbing his setup works too.
Recognizing that I volunteered as a Ranger, fully knowing the hazards of my chosen profession, I will always endeavor to uphold the prestige, honor, and high esprit de corps of the Rangers. Acknowledging the fact that a Ranger is a more elite soldier who arrives at the cutting edge of battle by land, sea, or air, I accept the fact that as a Ranger my country expects me to move further, faster and fight harder than any other soldier. Never shall I fail my comrades. I will always keep myself mentally alert, physically strong and morally straight and I will shoulder more than my share of the task whatever it may be, one-hundred-percent and then some. Gallantly will I show the world that I am a specially selected and well-trained soldier. My courtesy to superior officers, neatness of dress and care of equipment shall set the example for others to follow. Energetically will I meet the enemies of my country. I shall defeat them on the field of battle for I am better trained and will fight with all my might. Surrender is not a Ranger word. I will never leave a fallen comrade to fall into the hands of the enemy and under no circumstances will I ever embarrass my country. Readily will I display the intestinal fortitude required to fight on to the Ranger objective and complete the mission though I be the lone survivor. Rangers Lead The Way!.."All the way!" <<<<<1st Bat, 75th>>>>>
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September 20th 2009 at 10:39 AM
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XLT96rider
Other sports play once a week, but this sport is with us every day.
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942 Posts
Group: Members
Member Since: January 7th 2009
Location: Wausau, Wisconsin, USA
Current Sled: 1996 Polaris XLT Special
2008-2009 Miles: 1000+
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What I found out so far:
I had a Polaris Gold spring (100/275)in with 10mw weights (46g) and engagement was at 4500 rpm.
Noticed there was a sticky weight. Cleaned and engagement dropped to 4000 rpm.
Installed a Speedwerx Black spring (130/300) and 10 (51.5g) weights and engagement was still 4000 rpm +-100.
This was just run on the stand, but it sounded like the engine was cranking some serious rpm's on the top end (hood open, forgot to look at tach.) BUT, it did seem to perform better than the setup with the Gold spring.
I also read this: Quote Engagement can be varied from about 4600 to 5200 RPM just by varying the amount of weight in the hole closest to the pin.
The important thing to remember is: the pivot hole controls the bottom end, the middle hole controls the midrange, and the tip hole controls the top end. This was said about the adjustable Thunder Shift weights. http://www.thunderproducts.com/media-tskrr.htm
Are these weights really that good? Anybody using them?
Then you throw in a multi-angle helix and everything changes...again. So, a steeper helix loads the engine and makes it upshift faster. How do you know where to start for trying helix's? With the prices of them, I'd hate to buy 3 or 4 and try them and just let the others sit.
There's got to be an easier way. 
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September 20th 2009 at 11:24 AM
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sledfreak139
Sled Junky
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368 Posts 
Group: Members
Member Since: March 12th 2009
Location: Derry, NH, USA
Current Sled: 05 Polaris Switchback 600
2008-2009 Miles: 400
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Can't be done with a simple Chart. Each sled is different and with mods it changes everything...
2005 Polaris Switchback 600: SlyDog PowderHound Ski's, SLP Air Box Mod, V-Force 3 Reeds, 144" track fully studded, Powermadd Pivot Riser and 4" block, Polaris Hand guards,
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September 20th 2009 at 1:21 PM
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stormrider62033
wally
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4729 Posts
Group: Members
Member Since: December 25th 2004
Location: Gillespie, IL, USA
Current Sled: 99xcr 800
2008-2009 Miles: 500
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by charts i mean the color of spring and engagement rpms etc
mid Il alway's waiting for snow,moving north(way north)2001 thundercat 99xcr 800 97SPX ULTRA 96 zrt 600&800,92 doo plusX 92 v max 4 750
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September 20th 2009 at 9:29 PM
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Luke
Snowmofile
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903 Posts
Group: Members
Member Since: November 27th 2005
Location: Rotterdam, NY, USA
Current Sled: 1998 XC 700
2008-2009 Miles: 410
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Quote originally posted by stormrider62033
by charts i mean the color of spring and engagement rpms etc
I have a few color charts on my comp at work that list spring weights. But engagement rpm also depends on the amount of weight your running.
I got a lot of advice from guys running the same sled as me with very similar mods and that got me a long way in a short period for less $.
1998 XC 700
SLP pipe, boost bottle, power packs, VForce, clutched, Ripsaw 1.25, M-10 susp, 2 in riser, handlebar hooks, third testicle, and good brakes.
"I have not failed, I've just found 10,000 ways that won't work." - Thomas Alva Edison
Amsoil dealer
http://www.galushascottages.com
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September 21st 2009 at 6:18 PM
[ Modified September 21st 2009 at 6:22 PM
]
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AKnarrowback
We have all received a bail out. Jesus paid our debt 2000 years ago.
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867 Posts
Group: Members
Member Since: October 1st 2006
Location: Fairbanks, Alaska, USA
Current Sled: 96 xlt rmk/sks
2008-2009 Miles: 16
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Test and tune, test and tune, test and tune..... repeat 100X. It's the only way to get the right setup for your sled. Until the temp changes or you go up in elevation. Right now I'm running a setup in my 96 xlt that will not work in other similar stock xlt's but lets my sled run VERY well.
Clutching is theory that is applied by the individual. No one can grab a calibration out of the air, hand it to you and say it is perfect for how you ride. There isn't a formula to plug numbers into.
Ask questions for the basics, but the final details are what you have to tune in.
96 xlt sks/rmk. custom 5.5 inch riser on the bars, custom air intake, custom front shock mounts, custom oil feed channel in block to inner pto end bearing, primer (I hate chokes), custom = I made it myself
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September 21st 2009 at 6:37 PM
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skidogger
Average Member
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707 Posts
Group: Members
Member Since: September 4th 2006
Location: NH, USA
Current Sled: 09 skidoo mxzx 600 etec
2008-2009 Miles: 3100
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Scott.
150+ mi per tank of gas/ 1200 mi per tank of 2 stroke oil!
^Take that 4 strokes!!
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September 21st 2009 at 8:42 PM
[ Modified September 21st 2009 at 8:43 PM
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XLT96rider
Other sports play once a week, but this sport is with us every day.
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942 Posts
Group: Members
Member Since: January 7th 2009
Location: Wausau, Wisconsin, USA
Current Sled: 1996 Polaris XLT Special
2008-2009 Miles: 1000+
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Quote originally posted by skidogger This will help: I know, I gotta get that!! I've been reading sooo much, by brain is gettin' fried!! Clutching theory, what does this, what does that. I was hoping somebody had a good start for spring/weight combo's and when they engage. As said before: I had a Polaris Gold spring(100/275)in with 10mw weights(46g) and engagement was at 4500 rpm.(But wasn't fully shifting) Noticed there was a sticky weight. Cleaned and engagement dropped to 4000 rpm. Installed a Speedwerx Black spring (130/300) and 10 (51.5g) weights and engagement was still 4000 rpm +-100. WTF??? O.K. then, If I keep the 10 (51.5g) weights, what spring would give me approx. 4500-5000 engagement. I can tune from there, just don't want to dump tons of $$ to get it right. Springs are cheap, weights are not.
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September 22nd 2009 at 6:24 AM
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KRSS144
Average Member
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782 Posts
Group: Members
Member Since: July 31st 2007
Location: SPARTA, MI
Current Sled: 2000 XC 600 SP -its stock
2008-2009 Miles: 850
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Just FYI I am sure you know this but a lot of poeple dont, when playing with your springs each manufactures colors are different from each other. Meaning a yellow OEM primary is not the same as a yellow spring from Speedworx or Goodwin Performance and so on.
Also I found out talking with some people that are realling into racing, 2 years is the longest you want to use the same spring. I have over 4 years on the clutch setup I am using again this year. I guess if your looking for top performance and can see the numbers then sure replace them everyother year otherwise check to see if the paint is still on them and or if broke.
QUOTE(JeremyZ3 @ Jan 27 2009, 04:38 PM)
F*** YOU ATLEAST I AINT A JEWISH XC JUNK OWNING ASS F***ER
Goodwin Performance clutch kit,Boysen Reeds,1" Track,192 Stud Boys studs,Extra idler wheels,Thunder Products-extra air vents,SLP boost bottle,SLP Airhorn,Walker Evan rear Piggy Back shock,2 SLP Flow Right Intake,Rumble Pack can,PowerMadd 3" pivot riser w/6" riser block,custom made straight bar,PowerMadd handguards,PowerMadd SS extended throttle cable,RSI hand grips and SS brake line,hood vents yellow,Custom seat
04 SXVenom (Little ladies)
99 Banshee
Red Frame,.40 over Vitos Super Stock Piston Kit,Vitos Needles,
T5 pipes/silencers,Tusk nerf bars,K&N Air Filter,22" ITP Mud Lites
14/41 Gearing
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September 22nd 2009 at 7:49 AM
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xcr440
Sundowners Trail Coordinator
xcr440 icefish's because having feeling in your fingertips is overrated.
Updated Over 2 hours ago
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12582 Posts
Group: Members
Member Since: February 1st 2003
Location: St.Germain/Edgerton, Wisconsin, USA
Current Sled: 03prox700/97xcr440
2008-2009 Miles: 610
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Quote originally posted by XLT96rider
Quote originally posted by skidogger
This will help:
I know, I gotta get that!!
I've been reading sooo much, by brain is gettin' fried!! Clutching theory, what does this, what does that.
I was hoping somebody had a good start for spring/weight combo's and when they engage.
As said before:
I had a Polaris Gold spring(100/275)in with 10mw weights(46g) and engagement was at 4500 rpm.(But wasn't fully shifting)
Noticed there was a sticky weight. Cleaned and engagement dropped to 4000 rpm.
Installed a Speedwerx Black spring (130/300) and 10 (51.5g) weights and engagement was still 4000 rpm +-100.
WTF???
Use the black with the 46g weights, you should be in the 5-55500 range.
You went up in spring rate which would have raised the engagment if you had left the 46g weights in. you then placed 50g weights which lower the engagment. You didn't gain a thing.
a good beer drinker isnt a picky beer drinker
Loggers.... Working their ass off so you can wipe yours!
"Steep ground is when your cutting a notch and notice a mountain goat looking at you like you are crazy." - Hexan
woodbooga: (WOOD-boog-ah), n. regional dialect, common to areas of New Hampshire and Maine including the towns of Ossipee, Alton, Farmington, Acton, and Lebanon; one who attempts to obtain free firewood to fuel woodburning appliances in an effort to mitigate expenses related to home heating with fossil fuels. Frequently used as a term of derision by non-woodburners who mock the presence of loose bark and other wood waste in the beds of their pickup trucks.
2003 Pro x 700 almond/blue,10-66 black/red team 719 T-flow, 440 mains
1997 xcr440 my clutch kit, 380 mains,T-flow
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September 22nd 2009 at 10:26 AM
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XLT96rider
Other sports play once a week, but this sport is with us every day.
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942 Posts
Group: Members
Member Since: January 7th 2009
Location: Wausau, Wisconsin, USA
Current Sled: 1996 Polaris XLT Special
2008-2009 Miles: 1000+
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Quote originally posted by xcr440
Quote originally posted by XLT96rider
Quote originally posted by skidogger
This will help:
I know, I gotta get that!!
I've been reading sooo much, by brain is gettin' fried!! Clutching theory, what does this, what does that.
I was hoping somebody had a good start for spring/weight combo's and when they engage.
As said before:
I had a Polaris Gold spring(100/275)in with 10mw weights(46g) and engagement was at 4500 rpm.(But wasn't fully shifting)
Noticed there was a sticky weight. Cleaned and engagement dropped to 4000 rpm.
Installed a Speedwerx Black spring (130/300) and 10 (51.5g) weights and engagement was still 4000 rpm +-100.
WTF???
Use the black with the 46g weights, you should be in the 5-55500 range.
You went up in spring rate which would have raised the engagment if you had left the 46g weights in. you then placed 50g weights which lower the engagment. You didn't gain a thing.
You were thinking the same thing I was. (After I typed that) I'm going to try that in the next couple of days. 
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September 22nd 2009 at 11:45 AM
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Luke
Snowmofile
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903 Posts
Group: Members
Member Since: November 27th 2005
Location: Rotterdam, NY, USA
Current Sled: 1998 XC 700
2008-2009 Miles: 410
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Here are a few charts Ive collected over the past few years. Hope they help a little.
Good luck.
1998 XC 700
SLP pipe, boost bottle, power packs, VForce, clutched, Ripsaw 1.25, M-10 susp, 2 in riser, handlebar hooks, third testicle, and good brakes.
"I have not failed, I've just found 10,000 ways that won't work." - Thomas Alva Edison
Amsoil dealer
http://www.galushascottages.com
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