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'95 XCR compression
- uneven compression
started by 1981craig
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October 23rd 2009 at 6:31 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts 
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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i recently tested my compression. I put the tester in each cylinder and pulled three times. i got 117 120 and 98 on pto side. What might cause this? And more importantly how can i fix this with out spending a lot if possible.
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Site Supporter
Group: Site Supporters
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October 23rd 2009 at 6:34 PM
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xcr440
Sundowners Trail Coordinator
xcr440 has to go through the snowmobile trailer....sleds will be north next weekend.
Updated Thursday at 1:45 PM
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12572 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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try it again....Are you holding the throttle wide open while doing this??
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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October 23rd 2009 at 6:36 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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No i didn't do that let me go try it again
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October 23rd 2009 at 7:13 PM
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dtmmil
Senior Member
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3180 Posts
Group: Members
Member Since: January 27th 2007
Location: Hawley, MN, USA
Current Sled: 99 xc700
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PTO crank seal could be out, or bad rings.
Clutched
Jetted, boyesen reed petals, boost bottle, 98xc carbs slides, 1371 needles, gutted air box
Homeade 7 1/2" riser
Homeade suspension drop brackets
shortened and blackened windshield
powermadd handguards
144 conversion, tracks usa extensions, custom tunnel extension and rear bumper, IQ flap, 1.25" track
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October 23rd 2009 at 8:50 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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ooops tester is gone. gonna have to go get it tomorrow
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October 26th 2009 at 5:32 AM
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DieHardSledder
Starting Member
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3 Posts
Group: Members
Member Since: October 25th 2009
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How does everything look now?
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October 26th 2009 at 6:29 PM
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POLARISDOMINATOR
ride to live live to ride
POLARISDOMINATOR relationship issues!!! it wont matter when thers snow on the gorund and im not home where she can find me!
Updated Monday at 11:13 PM
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137 Posts 
Group: Members
Member Since: August 17th 2009
Location: marinette, wisconsin, USA
Current Sled: 95' Polaris Indy XCR 600
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new ring kits id do it for all three pistons since you got it apart anyway right? my xcr has 125 across the board
95 xcr 600 trip.
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October 26th 2009 at 7:04 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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can't find that damn compression gauge. No i dont have it a apart. how hard is it to rering it?
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October 26th 2009 at 8:06 PM
[ Modified October 26th 2009 at 8:06 PM
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Ugly_old_Poo_kid
techno-bumpkin
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1074 Posts 
Group: Members
Member Since: March 18th 2007
Location: Walworth, NY, USA
Current Sled: 05 Edge & Frankenstorm II
2008-2009 Miles: 165
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Takes several hours and the proper tools to do it with. Plan on pretty much all day on a weekend or a couple weekdays after work/school doing it for the first time. You'll need a compression tester, a torque wrench, and since you'll want to measure the bore you'll need a inside micrometer and either a micrometer or a digital caliper to read it with, and you might need a de-glazing hone to clean up the cylinders. Scrapers to clean off the gasket material.. All that can be had at Harbor Freight for under $100. While you have the carbs off, check the boots for hairline cracks.. One of them cracks widening in the middle of winter can cause a burndown. Grab the polaris 96-98 manual here in this thread - http://www.snowmobilefanatics.com/forum/...px#1043304 - and use it as a guide for the removal and rebuild.
95 - Storm 800 - Modded - AKA: FrankenStorm - Totalled near 100mph at Tug Hill!
96 - XLT/SP with Storm 800 trip/trip and now EFI - FrankenStorm II lives...
95 - RXL -- Sale Pending --
05 - Edge 800 long track - Stayin' stock for now..
---------------------------------------------
It made me more compassionate, more empathetic, more nurturing...
I FEEL LIKE I'M TRAPPED IN MY OWN WORST NIGHTMARE!!!
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October 27th 2009 at 9:01 PM
[ Modified October 27th 2009 at 9:02 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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ok got my gauge back. XCR is 125, 126, and 109 on PTO. On my RMK it 160 and 156 PTO.
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October 28th 2009 at 6:17 AM
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xcr440
Sundowners Trail Coordinator
xcr440 has to go through the snowmobile trailer....sleds will be north next weekend.
Updated Thursday at 1:45 PM
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12572 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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Your close to a rebuild as they are supposed to be within 10% of each other.
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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October 28th 2009 at 6:05 PM
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440_jag
450 horse ditch bannger
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1488 Posts
Group: Members
Member Since: July 30th 2007
Location: Galesville, wisconsin, USA
Current Sled: 2002 zr 500 cce
2008-2009 Miles: 500
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You could try new rings but most likely a rebuild will be in your future. You'd be better off using a hole gauge and a dial caliper or a micromiter for mesuring bore. If you just use a dial caliper you can only get so deep. Also there is most likely a ridge at the top of the cylinder so its not very accurate. If you do it your self for about 300 bucks you could have some nice pistons and a hell of a triple
2002 Zr 500 CCE
D&D pipe ported polished y 6 inch riser Acerbis Handguards Chrome winshield Pro-glider Rack Rsi pad Ripped graphics Fox snow pro shocks clickers
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October 28th 2009 at 7:13 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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sO IS IT GONNA HURT TO RUN IT THIS WINTER A FEW TIMES?
Quote originally posted by 440_jag
You could try new rings but most likely a rebuild will be in your future. You'd be better off using a hole gauge and a dial caliper or a micromiter for mesuring bore. If you just use a dial caliper you can only get so deep. Also there is most likely a ridge at the top of the cylinder so its not very accurate. If you do it your self for about 300 bucks you could have some nice pistons and a hell of a triple
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October 28th 2009 at 7:22 PM
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xcr440
Sundowners Trail Coordinator
xcr440 has to go through the snowmobile trailer....sleds will be north next weekend.
Updated Thursday at 1:45 PM
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12572 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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nope, run it.
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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October 28th 2009 at 8:40 PM
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1981craig
New Member
1981craig snow damn it.
Updated Monday at 6:36 PM
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69 Posts
Group: Members
Member Since: December 14th 2008
Location: Rock Valley, Iowa
Current Sled: 2002 RMK 800
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ok i didn'twant to hurt it and my wallet at the ame time. sounds like a good summer project to me.
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October 29th 2009 at 12:37 PM
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440_jag
450 horse ditch bannger
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1488 Posts
Group: Members
Member Since: July 30th 2007
Location: Galesville, wisconsin, USA
Current Sled: 2002 zr 500 cce
2008-2009 Miles: 500
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yeah i wouldnt be to affraid to take it for a spin.
2002 Zr 500 CCE
D&D pipe ported polished y 6 inch riser Acerbis Handguards Chrome winshield Pro-glider Rack Rsi pad Ripped graphics Fox snow pro shocks clickers
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