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+--- Thread: f4i no crank & prime (/showthread.php?tid=42130)
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f4i no crank & prime - Blizzle - 07-31-2012
What would cause no 12volt at fuel pump? I just replaced the whole harness, starter solenoid, relays in trunk, & new computer. All fuses are good, all connectors are plugged in, & ground at pump is solid. I jumped the pump & it primed. I was thinking the diode or resistor or whatever that is inside the ignition went bad? I have an extra ignition that the tumblers went bad in but dont have the tool to take it apart, gonna borrow one from a buddy 2morrow. Can I swap out that diode or resistor thats in the ignition? Just wanted to know if Im heading in the right direction with this?
Also thought about bypassing the whole ignition like this?
http://stuntride.com/vbstunt/showthread.php?t=33803
Ive been down for 2weeks now & any help would be appreciated.
f4i no crank & prime - WHEELIE - 07-31-2012
How weird 2 people in one night have the same issue...
http://stuntride.com/vbstunt/showthread.php?t=42124
f4i no crank & prime - M.F. Mall Cop - 07-31-2012
Jump the fuel pump relay in the back. If the bike primes but still wont start then im sure its your ignition. Do the toggle switch mod or swap it with a buddies and see if it fixes it.
f4i no crank & prime - Blizzle - 07-31-2012
Quote:
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Originally Posted by WHEELIE
 How weird 2 people in one night have the same issue...
http://stuntride.com/vbstunt/showthread.php?t=42124 |
f4i no crank & prime - Blizzle - 07-31-2012
Quote:
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Originally Posted by Adroit707
Jump the fuel pump relay in the back. If the bike primes but still wont start then im sure its your ignition. Do the toggle switch mod or swap it with a buddies and see if it fixes it.
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What wires should I jump from the relay? Whats 12v? I could look up in my pdf file but i figure you would be quicker.
I didnt bring my meter or probe home from work
& I got 2 relays with the newer harness so I would think they are good. It would suck to have 4 bad relays in total between old & new harness
f4i no crank & prime - M.F. Mall Cop - 07-31-2012
Quote:
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Originally Posted by Blizzle
I was hoping you would respond
What wires should I jump from the relay? Whats 12v? I could look up in my pdf file but i figure you would be quicker. I didnt bring my meter or probe home from work& I got 2 relays with the newer harness so I would think they are good. It would suck to have 4 bad relays in total between old & new harness |
Unplug relay 1 leaving relay 2 plugged in. Turn the key. Does it click?
Unplug relay 2 leaving relay 1 plugged in. Turn the Key. Does it click? Whichever one doesnt click is the one you need to bypass. This is how you bypass the non clicking one.
Once youve bypassed it then when you turn the key the fuel pump should continuously prime. Dont leave it more then 10seconds cuz it will burn out the pump. If it primes then put both the relays back in, swap the ignition, and it should fire right up. Or do toggle mod.
f4i no crank & prime - M.F. Mall Cop - 07-31-2012
Forgot to mention but could be something as simple as a bad relay. take the 2 relays in the back and test them out individually.You need both for the pump to prime.
f4i no crank & prime - Blizzle - 07-31-2012
Neither relays clicked
f4i no crank & prime - M.F. Mall Cop - 07-31-2012
Well start by fixing that. Check harness is plugged in. Swap those relays with the ones in the front. Check for voltage to the relays.
f4i no crank & prime - Blizzle - 07-31-2012
Ill let u know 2morrow what I find. Ill grab my meter from the shop. Thanks for helpin me out
