SOHC.co.uk Forums > CB350/400

Sudden engine cut outs

<< < (4/5) > >>

Lobo:
Given both the Kill Switch and the Start button are failing it might just be the multi-connector - can’t remember if it’s found within the headlamp or boot below the tank?

Do the headlamp / park lamp behave 100% as these too share the same multi connector?

Have a look at this wiring diagram, and note the three black (ie switched live) feeds all originate from a common multi-connector.

Athame57:

--- Quote from: Lobo on November 02, 2022, 09:37:15 PM ---Given both the Kill Switch and the Start button are failing it might just be the multi-connector

--- End quote ---
My kill switch works fine... I'll still go have a look at the multi-connector though.  ;)

Lobo:
Sorry - misunderstood the bit about starter button / kill switch.

I guess the easiest way to check is to have the engine running whilst moving the under tank connections boot up & down a bit in the hopes of a cut-out. (or within the headlamp bowl wherever…)

Oddjob:
Won't be a block connector if the wires go through the bars, it will be multiple individual connectors. However the black connector could still be the common factor.

TrickyMicky:
I had a problem with the main beam warning and indicator warning lights on the handlebar display. It turned out to be where all the earth wires joined inside the headlamp. 40-odd year old bullet connectors were quire heavily tarnished meaning that the earth current tracked through whatever route possible. Our bikes might be old, but at least we can access all the individual wires and connections, and with a little patience they clean up quite well.  The other similar problem I had, which caused a lot of head scratching, was the main fuse failing quite often. It turned out to be the multi connector behind the fuse carrier, upon unplugging it all the connections inside it were a nice green colour!! Apparently if a fuse "blows" in the middle of the glass then it's a short circuit, but in my case the end caps of the fuse were falling off through overheating, caused by current having difficulty being drawn through the poor connection. 30 minutes work with a set of jewellers' files cured it. Be lucky. Mike.

Navigation

[0] Message Index

[#] Next page

[*] Previous page