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Electrical question
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- Posts: 13
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Electrical question
So I have figured out the fuse is a Bosch 16a torpedo or continental type fuse on a wire from the diode board to the starter relay. It was not blown, just heavily corroded.
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- schrader7032
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None of the wiring diagrams
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
They are Ceramic Fuse white 8A 12V
The red one is 16A!
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Yes it is a 16A fuse in a
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So the saga continues. Bike
It appears that this particular red wire and wiggled off the circuit board. Reconnected but still nothing, so something else may have also happened. Still have to chase wires but I did discover yet another previous owner "modification". The two fuses that should be in the bucket on the board have been relocated to up near the handlebars. I'll have to see how they have rewired but I suspect that all of these mods over the last 40 years are leading to these electrical gremlins.
I'll post pics as I tear thing apart but has anyone ever seen something where those fuses were relocated?
- schrader7032
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PO probably didn't like
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
wires
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- Posts: 13
- Joined: Tue Apr 03, 2018 3:05 pm
The saga continues. The bike
To catch up the bike (unfortunately) has seen a few “modifications” over the past 40+ years. Dual plugs, DYNA ignition, fuses remoted up to the instrument panel area. Clock has not worked for years but otherwise the machine is a clean high mile (89K) example of a DO R90S.
So I was continuing the poking around and with the key in the on position, kill switch in run still no electricity evident (lights, clicks, etc. nothing.). Still have voltage in the headlight bucket where appropriate.
Curious thing I just discovered. The two red wires feeding the starter relay under the tank show 12 volts when the key is off but drop to zero when the key is on. Seems backwards to me.
- wa1nca
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Electrical problem
Too many variables
Try to resolve your headlight problem 1st
I would suspect your battery cables or a bad ground
Tommy
54 R51/3, 55 R50/Velorex 560 sidecar, 64 R27, 68 R69US, 75 R75/6
Ashfield, Ma
USA
- schrader7032
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Good resolution! That's a
http://www.thunderchild-design.com/diodead-v2.html
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.