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07-03-2011, 12:30 PM
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Junior Member
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Member #16484
Join Date: Jul 2011
Posts: 5
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gravity feedind fuel
have a 2005 predator 500. can i remove fuel pump and gravity feed fuel to a stock carb?
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07-03-2011, 12:45 PM
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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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Welcome Curb!
I gotta tell ya, if that was a good idea the factory would have built them that way..,
Whats the issues?
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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07-03-2011, 04:46 PM
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Junior Member
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Member #16484
Join Date: Jul 2011
Posts: 5
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not getting enough fuel at wot. ive cleaned carb. new fuel pump. checked valve clearance. changed fuel lines. cleaned carb again put it back to stock runs better. fuel pump gets it pumping action from the pulse hose going to the motor. i dont think it is getting enough suction from motor. how does the pulse hose get its suction. what in the motor creates the suction. i also did compression check 130 with carb closed. 160 holding the carb wot.
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07-03-2011, 05:35 PM
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Junior Member
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Member #16484
Join Date: Jul 2011
Posts: 5
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it is running out of fuel at wot. cleaned carb. checked valves. new fuel pump did compression check. put it back to stock runs better. thinking the pulse line is not getting enough suction for the fuel pump. what inside the motor creates the suction for the pulse line.
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07-03-2011, 09:26 PM
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ATV Enthusiast
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Member #3985
Join Date: Mar 2010
Posts: 67
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Have you Tried a new Plug? some plugs run fine but breakdown at high RPMS. (just a thought)
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2006 Sportsman 500 EFI ( Green )
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MODS:3 Light Mod, HID Lighting Upgrade, Front and Rear Bush Guards, Body Armour Fender Protectors, JamHard Rad Guard, Polaris Hand Guards, Front Rack Extender, Kimpex Rear Box, Handlebar crossbar for accessory mounting, Garmin extex legend GPS, UNI Air Filter, Rear Foot Pegs, Glacier II Plow System.
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07-04-2011, 06:04 AM
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Junior Member
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Member #16484
Join Date: Jul 2011
Posts: 5
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tried 4 differ plugs doing plug checks . it has new fuel. what creates the suction in the motor for the pulse line? i was running the rath intake. hmf exhaust. 190 jet had it on dyno seems big but thats what it called for. needle clip 4th notch. 3 turns out a/f. ran great for about 5 years changed oil when needed. i maintaned it well. took intake off put stock back on. carb back to stock 157.5 main jet. runs better. at wot gets a little sputtery running like that for a liittle bit. . oh plug was chalk white with cold air intake did check for leaks around intake no leaks. cleaned little filters in gas tank. im lost now
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