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03 honda cbr954rr fuel pump wont prime

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Old 08-06-2016, 01:22 PM
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Default 03 honda cbr954rr fuel pump wont prime

Hi to everyone it has been a while i have a problem with my 03 honda cbr954rr i rebuilt the engine & the bike started once after that i wasnt getting any fuel pump priming the tip over sensor was faulty i replaced it the ignition switch was faulty i replaced it & still i wont get no fuel pump prime & no spark the ecm is good i got it checked cant seem to find the problem can sum one please give me sum help thanks alot my fellow riders.
 
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Old 08-06-2016, 02:16 PM
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Did you check the FI fuse?
 
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Old 08-06-2016, 06:16 PM
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Originally Posted by 74demon
Did you check the FI fuse?
I checked all the fuses & they are all good so am still stumped as too why still no fuel pump or spark
 
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Old 08-07-2016, 10:32 AM
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Where did you get the ignition switch from?
Aftermarket ones tend to not work correctly. Make sure you have 9v at the pink wire from the switch.

Also, how long did it run for and how did I run?
Make sure everything is still plugged in.
 
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Old 08-07-2016, 11:18 AM
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Originally Posted by 74demon
Where did you get the ignition switch from?
Aftermarket ones tend to not work correctly. Make sure you have 9v at the pink wire from the switch.

Also, how long did it run for and how did I run?
Make sure everything is still plugged in.
I got the ignition switch from partzilla.com. I am getting between 9.5 & 8.5vlts but it doesnt go below 8.5volts or it doesnt go above 9.5vlts on the pink wire i guess that voltage is ok anything lower or higher i guess the diode is fried. When i first rebuilt the bike it ran for 15mins good so i stopped the bike & went for more gas when i came back & filled the gas tank & tried to start it but no fuel pump prime unless i put direct 12vlts to it.
 
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Old 08-09-2016, 07:34 PM
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Originally Posted by Tai954
I got the ignition switch from partzilla.com. I am getting between 9.5 & 8.5vlts but it doesnt go below 8.5volts or it doesnt go above 9.5vlts on the pink wire i guess that voltage is ok anything lower or higher i guess the diode is fried. When i first rebuilt the bike it ran for 15mins good so i stopped the bike & went for more gas when i came back & filled the gas tank & tried to start it but no fuel pump prime unless i put direct 12vlts to it.
Heyyyyy there 74demon i found the problem it was the servo motor the wires were jacked so thats y i wasnt getting any fuel pump prime or spark i unplugged the servo motor & the fuel pump primed & i got spark so too any one else who encounters a no spark or fuel prime on there cbr do all ur major checks & please dont forget to check your servo motor please thanks again 74demon have a gr8 one fellow riders & keep revving your hearts✌.
 
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Old 08-15-2016, 03:43 AM
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Originally Posted by Tai954
Heyyyyy there 74demon i found the problem it was the servo motor the wires were jacked so thats y i wasnt getting any fuel pump prime or spark i unplugged the servo motor & the fuel pump primed & i got spark so too any one else who encounters a no spark or fuel prime on there cbr do all ur major checks & please dont forget to check your servo motor please thanks again 74demon have a gr8 one fellow riders & keep revving your hearts✌.
Hello fellow riders my friends cbr is only getting spark on #1 & #2 coils but no spark on #3 & #4 what could that problem be any info would be very gr8 thanks alot
 
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Old 08-15-2016, 05:14 AM
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Switch the coils around and see if the problem moves with them.
 
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Old 08-15-2016, 06:39 AM
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Originally Posted by 74demon
Switch the coils around and see if the problem moves with them.
I switched them around & got spark on # 3 coil but only for a short time but still no spark on # 4 so i will check the power wires that are going to #3 & #4 coils & see if they have any breakage in the wires & repost with my findings
 
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Old 08-16-2016, 10:43 AM
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Originally Posted by Tai954
Heyyyyy there 74demon i found the problem it was the servo motor the wires were jacked so thats y i wasnt getting any fuel pump prime or spark i unplugged the servo motor & the fuel pump primed & i got spark so too any one else who encounters a no spark or fuel prime on there cbr do all ur major checks & please dont forget to check your servo motor please thanks again 74demon have a gr8 one fellow riders & keep revving your hearts✌.
Where is this located?
 


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