1 Brake light cutting off engine!!? Sun Oct 13, 2019 5:17 am
Egilchrist
New member
HI Guys,
New on here but have had bikes for 40 yrs and this one has me a bit stumped.
1991 K100 RS 16 v completely stock
When activating either brake stop lamp comes on without engine running,little dull for the first 3-4 activations and then brightens up to what you would expect.
Engine running, activate either brake, cuts out instantly.
I have
1.Cleaned up all earths and bulb contacts.
2.put a test lamp across contacts ,all good even with engine running ,(possible resistance discrepancy?)
3.switches appear ok,but its doing the same thing on both,so have ruled that out for now.
4.fuses all seem to be ok,and everything seems to reset after the engine cuts off and will restart as normal.
I am left with thinking it is the BMU gone,but I am a bit old school with electrics so any suggestions or enlightenment would be greatly appreciated.
Thanks in advance.(This problem is almost Italian (ducati) in nature,no offence to all my Italian friends!)
Eric
New on here but have had bikes for 40 yrs and this one has me a bit stumped.
1991 K100 RS 16 v completely stock
When activating either brake stop lamp comes on without engine running,little dull for the first 3-4 activations and then brightens up to what you would expect.
Engine running, activate either brake, cuts out instantly.
I have
1.Cleaned up all earths and bulb contacts.
2.put a test lamp across contacts ,all good even with engine running ,(possible resistance discrepancy?)
3.switches appear ok,but its doing the same thing on both,so have ruled that out for now.
4.fuses all seem to be ok,and everything seems to reset after the engine cuts off and will restart as normal.
I am left with thinking it is the BMU gone,but I am a bit old school with electrics so any suggestions or enlightenment would be greatly appreciated.
Thanks in advance.(This problem is almost Italian (ducati) in nature,no offence to all my Italian friends!)
Eric