My 2004, XVS1100 runs a 55/60W headlamp globe with a 15 amp inline fuse. Would it accept a 55/100W globe without compromising the electrics? Your guidance on this matter would be appreciated. Regards Bob Thomas

Do you know how to test automotive electrical circuits using a DMM - digital multi-meter ?
Principles of Operation
The headlamp switch is supplied power at all times from the smart junction box (SJB). When the headlamps switch is placed in the headlamps ON position, power is routed to the multifunction switch. Depending on the position of the multifunction switch, power is routed through one of two circuits to the SJB. If the multifunction switch is in the high beam position, power is routed through SJB fuse 12 (15A) and then on to the high beam headlamps. If the multifunction switch is in the low beam position, power is routed through SJB fuses 11 (10A) and 15 (10A) to the LH and RH headlamps, respectively. Power to the multifunction switch is available at all times for the flash-to-pass feature.

Is there B+ voltage at fuse's # 11 & 15 with headlamps on an the multifunction switch is in the low beam position ? If not check for B+ voltage at the multifunction switch . Free wiring diagrams here
http://www.bbbind.com/free-tsb Enter your vehicle info. year , make , model an engine . Under system click on lighting then under subsystem click headlamps . Click the search button then the blue link .
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Electric Testing Techniques You Need to Know

FUSE LINK IN THE FUSE BOX.LOOK FOR 75 OR MORE AMP FUSE LINK.

The headlamp circuit is rather simple. From the 15 amp RH headlamp fuse, there is a red w/yellow trace that goes to the RH high beam. Out of the 15 amp LH headlamp fuse, the wire going to the LH Hi beam is solid red. Both of these wires should have power when the headlamp relay is energized. The wires from the Hi Beam bulbs going back to the switch should both be red w/black trace. The wire going from the headlamp relay to power the 2 15 amp fuses is white. The headlamp switch applies a ground to illuminate either the Lo Beams or the Hi Beams.

The headlamp circuit is rather simple. From the 15 amp RH headlamp fuse, there is a red w/yellow trace that goes to the RH high beam. Out of the 15 amp LH headlamp fuse, the wire going to the LH Hi beam is solid red. Both of these wires should have power when the headlamp relay is energized. The wires from the Hi Beam bulbs going back to the switch should both be red w/black trace. The wire going from the headlamp relay to power the 2 15 amp fuses is white. The headlamp switch applies a ground to illuminate either the Lo Beams or the Hi Beams.

you are eing sold a bill of goods. go to our site and ask this question and read our files, we can help you.
First check your headlamp relay in the power distribution box under the hood uin front of the battery. Switch the left relay with the right relay and see if the problem switches to the other headlamp. report back on our site

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I'm assuming globe means bulb. I have replaced many bulbs that look fine, and that turns out to be the problem. But to stop you from chasing down a problem that isn't there, test the connector that attaches to the bulb. Should be power there with the head lights on. There should be a fuse, and a relay. The fuse is under the dash or on the side of the dash near the door hinges, I'm just not sure if this car would have seperate fuses for L headlight and R headlight. But you should check power first at the connector.

In the central fuse panel (one inside the vehicle) check fuses 23 for left headlamp and 25 for right (10 amp fuses) for power with the headlamp switch on.You should have power accross these fuses with the headlamp switch on. If u do not have power check fuse 6 (15 amp). If this fuse is good then check for power to pin 7 RD/YE wire at the multifuction switch, if this is good then check for power on pin 6 RD/BK,if u do not have power here then multifunction switch is your problem.

The headlamp circuit is rather simple. From the 15 amp RH headlamp fuse, there is a red w/yellow trace that goes to the RH high beam. Out of the 15 amp LH headlamp fuse, the wire going to the LH Hi beam is solid red. Both of these wires should have power when the headlamp relay is energized. The wires from the Hi Beam bulbs going back to the switch should both be red w/black trace. The wire going from the headlamp relay to power the 2 15 amp fuses is white. The headlamp switch applies a ground to illuminate either the Lo Beams or the Hi Beams.

There are 3 fuses protect the alternator. 7.5 amp ALT-S, 7.5 amp IGN and 15 amp GAUGE; no "inline fuses".

hello most amps will run 15/20 amp fuse on the main power supply .if it has a remote turn on this will be around 3 amps..i would not go to big as this is your protection if there is a problem.