2006 XB12R electrical issue???

RedRider2k2 · 12-08-2012, 04:17 PM

Do you have a manual? Check a wiring diagram to see if something like a tip over switch would kill the fuel pump. It could be set up to stop the pump in case of an accident.

I've heard of Buells developing dead shorts in the fuel pump circuit after having wires rub the frame. Make sure the Fuel Pump Fuse is not blown. I wouldnt think that would effect your starter but I'm not familiar with how your bike is set up so it's something to look into.

When you turn on the key, does the headlight usually turn on? (Mine only turns on after the bike starts.) I was just thinking, if the light is very dim or not even on, then it could be a loose ground.

G-Rex · 12-08-2012, 09:39 PM

I've noticed that V-twins in particular are very picky about having a fully charged battery. My TLR is a bastard if the battery gets down and it acts similarly to what you've described.

If you're not 110% convinced that it is charged all the way, I'd be tempted to replace it and I'd bet that will sort it out for you.

No Worries · 12-08-2012, 10:58 PM

My old CBR has carbs, but looking in the shop manual at the schematic for the starter system I count three fuses, six switches, one diode, and two lights that could prevent the starter motor from turning. Holy crap.

The manual goes on to say "Apply battery voltage to the starter motor directly and check the operation." I would start there and see if the starter turns. If so, then use your voltmeter to check fuses and switches.

When mine would not turn over, I found out that it was the clutch interlock switch. I sprayed the switch at the clutch lever with electric contact cleaner and it worked. And mine also needs at least 12.4 volts on the battery to crank.

12-08-2012, 04:17 PM	#1
RedRider2k2 Holier Than Thou Join Date: Nov 2008 Location: N.B, Canada Moto: 06 ZX10R, 18 400 Ninja, 11 KLX250s Posts: 463	Do you have a manual? Check a wiring diagram to see if something like a tip over switch would kill the fuel pump. It could be set up to stop the pump in case of an accident. I've heard of Buells developing dead shorts in the fuel pump circuit after having wires rub the frame. Make sure the Fuel Pump Fuse is not blown. I wouldnt think that would effect your starter but I'm not familiar with how your bike is set up so it's something to look into. When you turn on the key, does the headlight usually turn on? (Mine only turns on after the bike starts.) I was just thinking, if the light is very dim or not even on, then it could be a loose ground. __________________ Good judgement is the product of experience...Experience is the product of bad judgement. Sometimes The Faster It Gets, The Less You Need To Know. But You Gotta Remember The Smarter It Gets, The Furthur It's Gonna Go.

12-08-2012, 09:39 PM	#2
G-Rex Where to next? Join Date: Nov 2008 Location: OK to the C Moto: TL1000R, Hayabusa, R1150RT Posts: 1,333	I've noticed that V-twins in particular are very picky about having a fully charged battery. My TLR is a bastard if the battery gets down and it acts similarly to what you've described. If you're not 110% convinced that it is charged all the way, I'd be tempted to replace it and I'd bet that will sort it out for you. __________________

12-08-2012, 10:58 PM	#3
No Worries Keyboard Racer Join Date: Feb 2008 Location: Mile High City Moto: Old Superbikes Posts: 1,016	My old CBR has carbs, but looking in the shop manual at the schematic for the starter system I count three fuses, six switches, one diode, and two lights that could prevent the starter motor from turning. Holy crap. The manual goes on to say "Apply battery voltage to the starter motor directly and check the operation." I would start there and see if the starter turns. If so, then use your voltmeter to check fuses and switches. When mine would not turn over, I found out that it was the clutch interlock switch. I sprayed the switch at the clutch lever with electric contact cleaner and it worked. And mine also needs at least 12.4 volts on the battery to crank.