11-10-2023, 06:46 AM
Max posted a simplified wiring diagram
https://cb1100forum.com/forum/showthread.php?tid=14697
If the fuel pump relay and/or any other relay feeding it developed corroded contacts, causing high resistance, thereby reducing voltage to the fuel pump, the pump would draw higher amps to obtain the necessary wattage to operate. If that were the case, then the pump would get hot, which could damage the windings.
This could easily be diagnosed with a voltmeter applied to the fuel pump leads, while operating.
2007-2009 Sportsters had an issue with fuse and relay location, which was an issue for parking in the rain / riding in the rain / washing.
4800 miles on my V7-850 in 6 months. Just not averaging 1,000 miles a month here in New Mexico.
https://cb1100forum.com/forum/showthread.php?tid=14697
If the fuel pump relay and/or any other relay feeding it developed corroded contacts, causing high resistance, thereby reducing voltage to the fuel pump, the pump would draw higher amps to obtain the necessary wattage to operate. If that were the case, then the pump would get hot, which could damage the windings.
This could easily be diagnosed with a voltmeter applied to the fuel pump leads, while operating.
2007-2009 Sportsters had an issue with fuse and relay location, which was an issue for parking in the rain / riding in the rain / washing.
4800 miles on my V7-850 in 6 months. Just not averaging 1,000 miles a month here in New Mexico.