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96 polaris ultra
- Rev's way up when starting
started by charger12
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March 26th 2008 at 3:34 PM
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charger12
Starting Member
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8 Posts
Group: Members
Member Since: March 23rd 2008
Location: Hagaman, NY
Current Sled: 1996 Ultra/1990SRV
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Maybe some one can help. I just bought a 96 ultra replaced a set of rings in one cylinder, It starts well, but when it first starts, it runs up to about 3000rpm and then comes back down to normal. I do know some things about sleds but the triple I have never really worked with. It almost act like a bad oil seal and when you hit the throttle it alomost sounds like the plugs are fouled. Does anyone have any idea's. Thanks. 
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Site Supporter
Group: Site Supporters
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March 27th 2008 at 10:43 AM
[ Modified March 27th 2008 at 10:45 AM
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rsims16
Starting Member
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14 Posts
Group: Members
Member Since: July 11th 2007
Location: Freeport, Maine, USA
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If the Sled has carbs then you may have to turn the idle screws. You Can find out how many turns by looking under the hood there should be a sticker saying various info
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March 27th 2008 at 10:53 AM
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trailviolator
dubman
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1386 Posts 
Group: Members
Member Since: February 27th 2006
Location: clockville, new york, USA
Current Sled: 96 XCR 600/INDY SPORT 440
Miles Last Season: 649
Miles This Season: 497
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check your carb boots also for dry rot.
MY SLEDS
96 XCR 600,psi tripple pipes,holeshot skidplate,2000 xcsp600 clutches,plastic ski's 136" coming soon.
94 indy sport 440,plastic ski's holeshot skidplate bone stock.
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March 27th 2008 at 11:04 AM
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ibreakstuff
Jug Inspector
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1921 Posts
Group: Members
Member Since: October 20th 2006
Location: Southwest Suburbs of CHI, Illinois, Egypt
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^^^ Check the boots for cracks, as well as the oil seal on the PTO side.
My XCR700 has essentially the same engine as that and is known for having a lean-idle condition. You can turn the air screws in which might make it load up, or swap one size larger on the pilots which works perfectly.
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March 27th 2008 at 3:51 PM
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BskidooC
Senior Member
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2175 Posts 
Group: Members
Member Since: January 31st 2006
Location: leadville, Colorado, USA
Current Sled: Project in full swing
Miles Last Season: 900
Miles This Season: 260
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Quote originally posted by rsims16
If the Sled has carbs then you may have to turn the idle screws. You Can find out how many turns by looking under the hood there should be a sticker saying various info
This wouldnt be an issue seing how the idle comes back down meaning the idle screws are set correctly.
Charger- most likely its a cracked carb boot or seal like these guys said, do you know how to test seals for cracks? If not I could walk you threw it. Its pretty easy to tell if a boot has a crack but theres a little test you could try for it to.
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March 27th 2008 at 6:33 PM
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charger12
Starting Member
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8 Posts
Group: Members
Member Since: March 23rd 2008
Location: Hagaman, NY
Current Sled: 1996 Ultra/1990SRV
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Quote originally posted by BskidooC
Quote originally posted by rsims16
BskidooC
If I recall you can spray ether by the seal on the clutch side and if the rpm comes up that means a bad seal, is that right or have you heard of this? I don't know how to check the boots. Thanks for your help.
charger12
If the Sled has carbs then you may have to turn the idle screws. You Can find out how many turns by looking under the hood there should be a sticker saying various info
This wouldnt be an issue seing how the idle comes back down meaning the idle screws are set correctly.
Charger- most likely its a cracked carb boot or seal like these guys said, do you know how to test seals for cracks? If not I could walk you threw it. Its pretty easy to tell if a boot has a crack but theres a little test you could try for it to.
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March 27th 2008 at 7:49 PM
[ Modified March 27th 2008 at 7:52 PM
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ULTRAMANIAC
Junior Member
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383 Posts 
Group: Members
Member Since: October 7th 2005
Location: Delisle, Saskatchewan, Canada
Current Sled: 800 Edge x
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Mine revs up when its cold then when it warms up it comes down to normal I thought it was normal for the old trips top do this.When they are cold I've never had any issues with it yet and I've had it for a long time Maybe your cables are wore out or something not sure but just a thought
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March 27th 2008 at 8:15 PM
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