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06-05-2011, 08:22 PM
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ATV Enthusiast
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Member #15526
Join Date: May 2011
Location: Tahlequah, OK
Posts: 47
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EPI Clutch KIT
I just installed an EPI clutch kit (with the help of a buddy) in my 01 Sportsman 500 HO. On the primary clutch we could either use the red spring or the orange spring. The red spring, for lack of better term, is the more mild choice. The kit says I could use the orange spring if I wanted more low end. Anyone have any thoughts, advice, or experience with the kit? Ill probably end up driving it for awhile and switch the other spring and trying it for awhile. I am running a 2 inch lift and 28 inch swamp lites.
__________________
2001 Sportsman HO
2 inch lift
28 inch Mud Lites
ITP Wheels
EPI Clutch Kit
Warn winch
Snorkled
Relocated Radiator
Hand Guards
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06-06-2011, 01:33 AM
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Polaris ATV Junkie!
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Member #4618
Join Date: Apr 2010
Location: Black Lake, NY
Posts: 753
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The orange spring will get you a higher primary engagement RPM. What do you have now, with the orange spring? What was the engagement before you started? What other parts were in your kit that you installed?
Just being curious.
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2010 Sportsman 550 EFI
Warn XT25 on KFI Mount, Polaris Rear Cargo Box "Lock 'n Ride", Lowrance Baja 540C GPS, Custom front rack (for ice-fishing) "Lock 'n Ride" mounted, Front Cargo Box, ATV-Guru Cobra Brush Guards (with full expanded metal) Front & Rear. Maxxis Bighorns. Lock n' RideTall Windshield. Grip & Thumb Warmers. Tatou 4s Track System.
More mods to come.
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06-06-2011, 03:37 AM
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ATV Enthusiast
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Member #15526
Join Date: May 2011
Location: Tahlequah, OK
Posts: 47
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We put the red spring in. it is supposed to be the one with the lowest engagement. The Kit came with a red spring or and orange spring for the primary clutch, and new secondary clutch with a blue spring and new weights. I havent got to ride it enough to decide if the red spring bests suits my needs or if I should swap it out with the orange spring. I am running 28 inch tires. I mostly trail ride but I notice last week when climbing steep rocks on a trail I was lacking intial throttle response. I made it over but had to use more throttle that I would like to. I also smoke the belt twice when I got in a sticky situation (MUD). I went ahead and replaced the belt also. I can tell a difference with the new setup but have just played around with it in the yard. I hope to test I out Tues or Weds. I am trying to find a happy medium between good low end and decent top end. I really dont get the quad over 30-35 mph and was wondering if it would still get up there if I swap it out with the orange spring. Only one way to find out I guess...
__________________
2001 Sportsman HO
2 inch lift
28 inch Mud Lites
ITP Wheels
EPI Clutch Kit
Warn winch
Snorkled
Relocated Radiator
Hand Guards
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06-06-2011, 03:50 AM
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Polaris ATV Legend
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Member #6579
Join Date: Aug 2010
Location: Central Connecticut
Posts: 3,114
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35 -40 will not be an issue at all. When you loose top end we are only talking five mph or so. Also with your taller tire you cover more ground with the same RPM as before. So you will already have a higher top speed just from that. It should offset any loss from the clutch kit.
Remember a clutch kit docent change the power output one iota. It merely allows for better, tighter grip on the belt at different times. IE slowing promairy engagment wil allow engine to be better into it's power band. But it still operates with in the RPM range of the engine so it's like taking from the top and moving it to the bottom where most people need it more. The fly weights work with cintrifigal forces to grip the belt as the Rome build and better " grip" is needed on the belt.
Your on the right track. You know your machine. Go ride then change adjust and ride again. In effect your "tuning" for your own riding style. What's better than that!!
Secondary springs work with your back shift or how fast you get back in/in power after letting off.
Good luck,
CW
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Mine
2007 Polaris Sportsman 700 EFI W/ 26" Maxxis Big Horns, Crusher Black alloy rims, EPI clutch kit, EPI HD springs F&R, Moose front/Ricochet rear CV guards, Kolpin Aux 4 Gal fuel can, UNI air filter, Moose camo tank bag, F&R rack extensions, Lock-N-Ride lo & hi windshields, Acerbis hand guards, CUSTOM mirrors and a 3000# Gorilla winch, W/Am-steel blue synthetic line, running thru a winch saver and an aluminum fairleed.
NEW: Thor's foot pegs and CUSTOM rear rack support frame and WES seat box. CUSTOM front and rear mud flaps.
Momma's
2000 Polaris Trail Boss 325 W/23" Wooly Bogger rear tires, Powermadd hand guards, UNI filter, Big Dawg rear and side bags, Polaris Mirrors, Kolpin grips, Quad Boss tank bag, Gas tank fuel gauge, Custom front 12v power port, Dual 1.5 Gal Kolpin fuel cans, mounted in custom rear facing mounts and a 2000# Super-Winch in a custom built mount W/winch saver.
CALL Thor @ www.TheATVSuperStore.com - 815-321-3888
Last edited by cwlongshot; 06-06-2011 at 03:55 AM.
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06-06-2011, 04:02 AM
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ATV Enthusiast
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Member #15526
Join Date: May 2011
Location: Tahlequah, OK
Posts: 47
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Hey thanks, with that in mind I think I may go ahead and go with the orange spring. What do you think??
__________________
2001 Sportsman HO
2 inch lift
28 inch Mud Lites
ITP Wheels
EPI Clutch Kit
Warn winch
Snorkled
Relocated Radiator
Hand Guards
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06-06-2011, 04:56 AM
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Polaris ATV Legend
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Member #6579
Join Date: Aug 2010
Location: Central Connecticut
Posts: 3,114
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You won't know until you try. One thing is for sure it won't hurt and is easy to swap back if you don't like it.
Did you install complete kit?
CW
__________________
Mine
2007 Polaris Sportsman 700 EFI W/ 26" Maxxis Big Horns, Crusher Black alloy rims, EPI clutch kit, EPI HD springs F&R, Moose front/Ricochet rear CV guards, Kolpin Aux 4 Gal fuel can, UNI air filter, Moose camo tank bag, F&R rack extensions, Lock-N-Ride lo & hi windshields, Acerbis hand guards, CUSTOM mirrors and a 3000# Gorilla winch, W/Am-steel blue synthetic line, running thru a winch saver and an aluminum fairleed.
NEW: Thor's foot pegs and CUSTOM rear rack support frame and WES seat box. CUSTOM front and rear mud flaps.
Momma's
2000 Polaris Trail Boss 325 W/23" Wooly Bogger rear tires, Powermadd hand guards, UNI filter, Big Dawg rear and side bags, Polaris Mirrors, Kolpin grips, Quad Boss tank bag, Gas tank fuel gauge, Custom front 12v power port, Dual 1.5 Gal Kolpin fuel cans, mounted in custom rear facing mounts and a 2000# Super-Winch in a custom built mount W/winch saver.
CALL Thor @ www.TheATVSuperStore.com - 815-321-3888
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06-06-2011, 05:18 AM
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Extreme ATV Enthusiast
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Member #14933
Join Date: May 2011
Location: Mustang Oklahoma
Posts: 213
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With a 500cc motor, heavier tires and as tall as they are I would go with the orange
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06-06-2011, 11:10 AM
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Polaris ATV Junkie!
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Member #858
Join Date: Jul 2009
Location: Penna
Posts: 540
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When i set my EPI clutch up,i wanted lower Rpm engagement,but torgue at the wheels...meaning lowend power....so i used everything in the kit ,but ordered another spring....that higher engaugment felt like crap...i wanted holehot....and I've been happy with the setup.......Muddie49
__________________
2009 Polaris 500 HO 
Front&Rear Brush Guards
2500lb Polaris Winch
2" Ez install lift kit
26inch Zillas & 14 inch ITP wheels ..
Front &Rear Extenders
Polaris hand guards
K&N airfilter box system
My FenderGuards
EPI Clutch System
SunPro Temp gauge
Xbow Gripper mount
~DOWN&DIRTY~
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06-06-2011, 11:17 AM
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Polaris ATV Junkie!
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Member #11494
Join Date: Jan 2011
Location: Rhode Island
Posts: 1,267
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Quote:
Originally Posted by MUDDIE49
When i set my EPI clutch up,i wanted lower Rpm engagement,but torgue at the wheels...meaning lowend power....so i used everything in the kit ,but ordered another spring....that higher engaugment felt like crap...i wanted holehot....and I've been happy with the setup.......Muddie49
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So might I ask what colors you're running now? I run a red primary and a purple secondary and I am not too crazy about the engagement either.
__________________
2010 Sportsman 500 H.O.
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06-06-2011, 06:47 PM
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ATV Enthusiast
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Member #15526
Join Date: May 2011
Location: Tahlequah, OK
Posts: 47
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Went with the orand on primary, and blue on seconday (only option that came with the kit one the secondary). I am liking the setup.
__________________
2001 Sportsman HO
2 inch lift
28 inch Mud Lites
ITP Wheels
EPI Clutch Kit
Warn winch
Snorkled
Relocated Radiator
Hand Guards
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