wayne z
Well-Known Member
Reposted from electrical for maybe more views:
Hi all, I have just replaced the entire wiring harness on my Vmax after my old one nearly burned in two in the fuel pump area from a fuel fire.
Haven't pinpointed the cause yet, but I did discover that tank vent valve was clogged. I did find a lot of cracks in the fuel pump diaphram, and the motor end of the pump was the most burned spot on the bike.
Speculating, maybe too much tank pressure (nearly full) causing something to leak in the motor area of the pump and the sparking contacs of the pump ignited the fuel.
The problems:
I carefuly inspected the replacement harness, cleaned the connectors and repaired a few. There was no evidence of overloaded or short circuit wires or connectors anywhere in the burned harness, just an 8" section burnt to bare copper.
After installation, all the electrics work, but the fuel pump and the servo are silent when the key is turned on.
I jumpered the pump and it's fine. Close re-inspection of all plugs and fuses checks OK.
My guess is that when the wires shorted together in the fire area, probably burned out some relays.
Does anyone want to opine on what parts I should try replacing first? Also, a description of their locations would be helpful.
Thanks,
Wayne
Hi all, I have just replaced the entire wiring harness on my Vmax after my old one nearly burned in two in the fuel pump area from a fuel fire.
Haven't pinpointed the cause yet, but I did discover that tank vent valve was clogged. I did find a lot of cracks in the fuel pump diaphram, and the motor end of the pump was the most burned spot on the bike.
Speculating, maybe too much tank pressure (nearly full) causing something to leak in the motor area of the pump and the sparking contacs of the pump ignited the fuel.
The problems:
I carefuly inspected the replacement harness, cleaned the connectors and repaired a few. There was no evidence of overloaded or short circuit wires or connectors anywhere in the burned harness, just an 8" section burnt to bare copper.
After installation, all the electrics work, but the fuel pump and the servo are silent when the key is turned on.
I jumpered the pump and it's fine. Close re-inspection of all plugs and fuses checks OK.
My guess is that when the wires shorted together in the fire area, probably burned out some relays.
Does anyone want to opine on what parts I should try replacing first? Also, a description of their locations would be helpful.
Thanks,
Wayne