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keep blowing headlight fuse?, 82 gs1100e

  • Thread starter Thread starter wes cooley
  • Start date Start date
W

wes cooley

Guest
has happened twice in two days. voltage regulator taking a dump? traced headlight wires, see no problems there........
 
Last edited:
Check voltage at the battery with the engine running at 5000 rpm, if it's above 15.5 volts, your R/R has failed.
 
If your r/r has failed, you have already seen it take out headlight bulbs.

Next, it works on things that cost even more. :oops:


.
 
Does the 81 have that dumb stator wire going into the headlight switch that no longer exsists? If so that stator leg could short and blow the headlight fuse?
Or was that wire redundant and just routed the long way around.
 
If your blowing a headlight fuse, the most likely cause is a short circuit. Something somewhere is probably touching the frame. The voltage regulator has NOTHING to do with this. maybe a wire is pinched under a piece of metal in the headlight bucket.

Start at the fusebox and look for exposed wires, then move forward along the frame to the headlight bucket. You could try powering up the bike with a battery charger and wiggling wires until you blow the fuse, then you will know.
 
chef1366 said:
Does the 81 have that dumb stator wire going into the headlight switch that no longer exsists? If so that stator leg could short and blow the headlight fuse?
Or was that wire redundant and just routed the long way around.
Click to expand...
If it is wired the same as my (wife's) '82 850L, that wire never makes it into the headlight bucket.

There is a 9-pin connector under the tank, along the right side of the main frame tube. The stator wire comes in as a green/white wire. The plug that goes into this connector has a short wire that loops over to another pin and sends that stator current back down a red/white wire to the r/r.

IF the bike had an operable headlight switch, instead of just a loop of wire, a pair of wires would have lead from the connector to the second set of contacts on the headlight switch. The only way that this scenario would possibly blow headlight fuses would be if there was a short across the terminals inside the headlight switch. With an '81 bike, it's likely there is no switch, so no problem here.

I still place my money on a shot r/r.


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Re route your ground/earth wire, this may help, it happened on mine, so I put the ground wire to the engine, problem solved.
 
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