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F4i fuel pump wont prime

   
Old Feb 14, 2007 | 03:07 PM
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Re: F4i fuel pump wont prime
there is a resistor in the ignition that could have burned out, the ignition sends 7volts to the ecu, if that resistor burns up... no primey
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Old Feb 14, 2007 | 03:07 PM
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Re: F4i fuel pump wont prime
power to the plug at the pump means every thing up to there is working.......
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Old Feb 14, 2007 | 03:08 PM
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Re: F4i fuel pump wont prime
how many wires goto the tank?
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Old Feb 14, 2007 | 03:09 PM
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Re: F4i fuel pump wont prime
Originally Posted by old man roger
power to the plug at the pump means every thing up to there is working.......
you have to Remember, honda relys on GROUNDS for they're switches...
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Old Feb 14, 2007 | 03:11 PM
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Re: F4i fuel pump wont prime
Originally Posted by Wheeliest
how many wires goto the tank?
there was 3 a brown, brown with white stripe(i think) and a green. the green has been cut and if folded back and electrical taped. been like that since i got the bike
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Old Feb 14, 2007 | 03:11 PM
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Re: F4i fuel pump wont prime
ok but he plugged the pump directly to the +- on the battery so he has a dead pump ...unless he didn't get a good connection.....
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Old Feb 14, 2007 | 03:12 PM
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Re: F4i fuel pump wont prime
Originally Posted by DBOUNCE1
there was 3 a brown, brown with white stripe(i think) and a green. the green has been cut and if folded back and electrical taped. been like that since i got the bike
prolly the level sensor, ok since the pump ecu wont ground the pump unless its supplied 7 volts from the ignition, try running your own GROUND to the fuel pump.
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Old Feb 14, 2007 | 03:13 PM
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Re: F4i fuel pump wont prime
Originally Posted by old man roger
ok but he plugged the pump directly to the +- on the battery so he has a dead pump ...unless he didn't get a good connection.....
ya the pump didn 't do anything when i did that
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Old Feb 14, 2007 | 03:14 PM
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Re: F4i fuel pump wont prime
are you sure u did it right? how many times have you primed it while it was out of gas?
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Old Feb 14, 2007 | 03:14 PM
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Re: F4i fuel pump wont prime
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Old Feb 14, 2007 | 03:15 PM
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Re: F4i fuel pump wont prime
the fuel pump relys on gas as its lube...
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Old Feb 14, 2007 | 03:16 PM
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Re: F4i fuel pump wont prime
altight i don't have a volt meter but i stuck my test light inside the pump plug on the harness whe clip on one prong and the poker on the other and nothing. but when i put the clip on the + on the battery then touch the third prong in the plug it lights up, but that dosen't mean **** does it since both the engine and harness are grounded that just means it's making a circuit? right?
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Old Feb 14, 2007 | 03:17 PM
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Re: F4i fuel pump wont prime
Originally Posted by Wheeliest
the fuel pump relys on gas as its lube...
right and if you run one with out gas it will burn up the pump. but i have never ran out of gas in my bike or primed it just for fun on an empty tank
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Old Feb 14, 2007 | 03:18 PM
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Re: F4i fuel pump wont prime
Originally Posted by old man roger
enjoy
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Old Feb 14, 2007 | 03:18 PM
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Re: F4i fuel pump wont prime
aaaaaaaahhhhhhhhhh i knew he didn't check to see if there was power at the plug...............................
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Old Feb 14, 2007 | 03:19 PM
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Re: F4i fuel pump wont prime
run your own ground to the pump.. there is power

oh wait, so no power at the plug?
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Old Feb 14, 2007 | 03:20 PM
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Re: F4i fuel pump wont prime
Originally Posted by Wheeliest
run your own ground to the pump..
which wire on the pump is the ground? and what is taht gonna change if the harness isn't delivering power that far
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Old Feb 14, 2007 | 03:20 PM
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Re: F4i fuel pump wont prime
Originally Posted by DBOUNCE1
altight i don't have a volt meter but i stuck my test light inside the pump plug on the harness whe clip on one prong and the poker on the other and nothing. but when i put the clip on the + on the battery then touch the third prong in the plug it lights up, but that dosen't mean **** does it since both the engine and harness are grounded that just means it's making a circuit? right?
do it again with the probe on one side and the clip on the other and then turn the key on and make sure you kill switch is on,and then tell us what happens....

then do it with the clip on the neg side or the batt
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Old Feb 14, 2007 | 03:22 PM
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Re: F4i fuel pump wont prime
Originally Posted by old man roger
do it again with the probe on one side and the clip on the other and then turn the key on and make sure you kill switch is on,and then tell us what happens....
already did that and didn't change anything
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Old Feb 14, 2007 | 03:23 PM
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Re: F4i fuel pump wont prime
Originally Posted by old man roger
do it again with the probe on one side and the clip on the other and then turn the key on and make sure you kill switch is on,and then tell us what happens....

then do it with the clip on the neg side or the batt
didn't do anything with the clip on the neg side either
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