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post #11 of 13 Old 07-23-2010, 09:43 AM
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what everyone said above is important to check, but we got into a weird diagnosis like this with a carbed 500.

tuned out to be the fuel pump. the pump is run by intake vacumm pulses and if the hoses or the diaphram leak it may just fill the fuel bowl but lose it at speed or leak fuel into the intake and run rich.

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011 X MR
07 "500R XMR" Outlander


φ(t,x) = exp(−iEt + ipx)
time is imaginary
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post #12 of 13 Old 07-25-2010, 07:53 AM Thread Starter
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ok.. im pulling the tank soon and puttin a rod too see if those strainers are there and getting rid of them, and also found a new coil tooput in too, all is left is fule pump and i have a way too test theat, hope not tho they want 175$ for it here!! stupid canam f***ers!!also found a dude whos is a wiz on these carbs he tricks them out for gssr bikes!!!

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post #13 of 13 Old 07-25-2010, 04:32 PM
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tell us how you check the fuel pump and how that turns out. dont know where you are, but bikebandit.com lists the pump for $45.00US

i have never had luck with an ohm meter on the coil. i just pull the spark plug hang it by the coil wire and ground the plug with a jumper. crank it and see if there is spark. if not check for voltage to the coil. if good try the new coil, if not jumper power to the coil and see if you have spark. you need good amperage to the coil as well. so if you get spark with the jumper wire and you have voltage there may be a poor connection somewhere.

BTW, i just remembered my Briggs and Stratton riding lawnmower has the same type of pump.? if you have a lawn and garden repair shop in your area you might try that.

011 X MR
07 "500R XMR" Outlander


φ(t,x) = exp(−iEt + ipx)
time is imaginary

Last edited by mongoose; 07-25-2010 at 04:43 PM.
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