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f4i fuel pump not priming

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Old 02-12-2012, 07:19 PM
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Default f4i fuel pump not priming

bought an 01 f4i stunt bike and it was in a little bit of rough condition, so i took the tank off and a couple stunt parts to paint them. i put the tank back on after painting and the fuel pump wouldnt prime. i took fuel pump off and jumped it and it works just fine when i jump it. the tip over sensor is bypassed and im still having problem. the relays look fine and i have no blown fuses. no power is getting to the f4i through the harnss. WTF. any one know what to do?? or possible solutions. help me honda riders
 
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Old 02-12-2012, 07:26 PM
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Originally Posted by my750
bought an 01 f4i stunt bike and it was in a little bit of rough condition, so i took the tank off and a couple stunt parts to paint them. i put the tank back on after painting and the fuel pump wouldnt prime. i took fuel pump off and jumped it and it works just fine when i jump it. the tip over sensor is bypassed and im still having problem. the relays look fine and i have no blown fuses. no power is getting to the f4i through the harnss. WTF. any one know what to do?? or possible solutions. help me honda riders
on the left side of the bike under the tank and slightly to the rear, there should be two electrical plugs that connect to the tank.. did you attach those?
 
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Old 02-12-2012, 07:32 PM
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Bike cut off switch ( by throttle ) check it make sure it works

also check to make sure your bypass of the BAS hasn't came loose.


You should hear the relay click when you turn over the key. If everything else checks out ok.
 
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Old 02-13-2012, 09:15 AM
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Originally Posted by Acespad3
on the left side of the bike under the tank and slightly to the rear, there should be two electrical plugs that connect to the tank.. did you attach those?
yesir. no power gets to pump, and i get no click from relay when i turn the key
 
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Old 02-13-2012, 06:45 PM
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How about when you turn on the key. Does the FI light come on?


If not go check the kill switch or the BAS bypass.
 
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Old 02-13-2012, 07:47 PM
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Originally Posted by jveach
How about when you turn on the key. Does the FI light come on?


If not go check the kill switch or the BAS bypass.
its a stunt bike, i have no gauges or headlights on it. i do have the wire harness for the upper attached to it though with the tos bypassed.
 
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Old 02-13-2012, 07:49 PM
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its a stunt bike, i have no gauges or headlights on it. i do have wire harness for the upper on attached to the main wire harness. i also have tos bypassed.
 
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Old 02-17-2012, 11:28 PM
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alright heres an update for anyone still reading. i soldered wire back into ecu, bypassed whole harness with beardos technique. and got nothing. fuel pump relays dont click and fuel pump doesnt prime at all. i called honda and they said they there is no test for an ecu. i put ether in vents to try and catch spark and get it to fire for atleast a second, i got nothing. i take it that means no spark. any body else got any other ideas? im all out of things to try other than buy a new ecu just to see what happens
 
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Old 02-18-2012, 02:11 PM
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any ideas? any one?
 
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Old 02-18-2012, 10:45 PM
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somebody's got to have a solution!
 


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