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freezing fuel pump
- how to fix??
started by scumpman
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March 2nd 2008 at 9:12 PM
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scumpman
temporarily out of order
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467 Posts 
Group: Members
Member Since: October 12th 2004
Location: SAINT MARYS, AK, USA
Current Sled: '03 Indy 500
Miles Last Season: ~ 1150 ?
Miles This Season: bout 800
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Just bought a used '03 Skidoo Legend 550 fan two weeks ago... it's the second time in two weeks that I've had to remove the fuel pump to disassemble and thaw it out, and it's getting to be a PITA. Both times the pulse line has been frozen with some build up of what looks like a greenish fuel/moisture slush in the diaphram side. Is there something that I can do to stop the pump/line from freezing???
Right now I've got a Sta-Dri in the tank and I'm thinking of adding Iso-Heet to the tank to see if this would help with possible moisture build up in the crank.
By the way, why didn't Skidoo add a fuel shut off valve to the fuel line???  Gonna have to put one in myself.
'03 Indy 500 sks (Scumpman's Kicka** Snowmachine) extended skid/track to 136" from TracksUSA, AC roller clutch, Holtzman Tempaflow, clutched and geared, 2" risers, skidplate, old Pol rack.
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Site Supporter
Group: Site Supporters
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March 2nd 2008 at 10:04 PM
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storminout
New Member
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74 Posts 
Group: Members
Member Since: December 21st 2006
Location:
Current Sled: 95 Storm/96 XCR
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Yes iso-heet will work, I use it all the time. Sounds like you need better gas also.
95 Storm X10 EPI red clutch spring, shaved heads, nicely tuned carbs, 21 top gear, no studs YET
96 XCR 600 electric start, reverse, 96 studs
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March 3rd 2008 at 5:25 PM
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blade
Starting Member
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46 Posts
Group: Members
Member Since: January 26th 2003
Location:
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sounds like you have old gas in the tank  have you put new gas in the tank?
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March 3rd 2008 at 11:44 PM
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scumpman
temporarily out of order
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467 Posts
Group: Members
Member Since: October 12th 2004
Location: SAINT MARYS, AK, USA
Current Sled: '03 Indy 500
Miles Last Season: ~ 1150 ?
Miles This Season: bout 800
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gas shouldn't be a problem.. it's been running all this winter and already filled the tank once at the pumps... i put iso-heet in on this fill up and will see how that works..
'03 Indy 500 sks (Scumpman's Kicka** Snowmachine) extended skid/track to 136" from TracksUSA, AC roller clutch, Holtzman Tempaflow, clutched and geared, 2" risers, skidplate, old Pol rack.
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April 28th 2008 at 9:21 PM
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mxz380@nu
Junior Member
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177 Posts
Group: Members
Member Since: January 15th 2007
Location: Arviat, Nunavut, Canada
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I kept freezing my pulse line to this winter. Replaced crankshaft and seals, hope that will solve the problem. I figured motor was sucking in cold air and frost going the pulse line.
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May 4th 2008 at 8:34 AM
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kylepotaoes
KylePotatoes
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70 Posts
Group: Members
Member Since: January 20th 2008
Location: Little Britain, Ontario, Canada
Current Sled: 1984 Yamaha Phazer
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I would buy a rebuild kit for your fuel pump and see if that helps. There about $10.
If you never crash, your don't go fast enough.
Current Sleds:
1980 Yamaha Enticer 340 (Dosen't run, yet but it will soon)
1981 Yamaha Enticer 250
1984 Yamaha Phazer
1988 Yamaha Bravo
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May 4th 2008 at 5:57 PM
[ Modified May 4th 2008 at 5:59 PM
]
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yamahaguy77
DREAM EATER, SNOW RAPER
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161 Posts
Group: Members
Member Since: December 23rd 2006
Location: Newmarket, Ontario, Canada
Current Sled: 2003 Polaris Pro XR 800
Miles Last Season: 1400
Miles This Season: 1000
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replace the seals on your pump, iso- heat works well, buddy of mine haas the same sled and problem.
iff problem persists, pull out the leather, and pass out a few greenones and buy a new pump 
159" track with Mountain Machines extensions
8" billet wheels
tunnel from Vertical Edge chassis with fuel rack
left hand throttle
1/8 inch tapered bars
four inch riser
Ceramic coated SLP Pipe and Silencer
SLP cold air intake with Flow-Rites and Air Horn
V-Force 3 Reeds
Team Roller Secondary clutch.
I ride polaris Because your mom broke down!!!
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May 5th 2008 at 10:28 AM
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G-Man
I'm a new DADDY!!!
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947 Posts 
Group: Members
Member Since: November 21st 2005
Location: Kugluktuk, Nunavut, Canada
Current Sled: 2006 Trail RMK 700
Miles Last Season: ?
Miles This Season: 820
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Also I would take the tank right off and drain it or get something that can drain the tank comepletely. Water is heavyer (spelling) then fuel so it will stay at the bottom of the tank. I had the same problem on my Trail RMK 550 fan. There was a cup of water at the bottom of the tank and it will take a long time for a fuel additive to clean out all that water. I would do it properly the first time so that you won't have to keep fussing with the pump. Good luck with er and hope the problem stops.
Life's Short Ride Hard!
Sled: 2006 Trail RMK 700 
SLP Y-Pipe, Single Pipe, Silencer
SLP Velocity Stack
V-Force 3 Reeds
SLP Flow Rites (2.5")
5 3/4" Riser
Clutching:Primary Grn/Blk 10-62, Secondary Red/Blk 62-40-42/62-44-42 helix
Rating:
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