SOHC.co.uk Forums > CB500/550

CB550 F2 Misbehaving...

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hairygit:
+1 with Lester on ignution switch, my 750F1 did the same several times, I used to wiggle the ingitionn switch while still rolling in gear and it wiuld run fine again until the next major bump in the road. It turned out one of the plastic lugs holding the switch to the lock had snapped off, so fitted a new switch, problem solved

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Steph550:
Sorry if I'm being stupid (electrics aren't my strong point!) but looking at the wiring diagram, if it was a problem with the ignition switch would other things not also stop working? When the engine cuts the neutral light and oil light still work, as does everything else.

This also doesn't seem to be related to bumps in the road.

I'll have a look at the kill switch circuit and ignition switch today and see if I can find an obvious problem.

Cheers,

Steph.

Bryanj:
Not necessarily Steph, trouble with electrics is you cant see or smell it but by christ it hurts when it bites!!

LesterPiglet:
Jiggle the wires behind the ignition while the bike is running and see if it reacts but you saying the neutral light is still on when it cuts out makes me think it isn't the switch.

florence:
I've had this, loose barrel in the ignition switch, wiggle the key and it cuts out.  It once happened to me in the dark, luckily not going round a bend, extremely distressing!  I replaced the switch with a Honda item and before long, same problem.  I now have a landrover ignition switch, seems fine.  If it happens again I shall dispense with ignition switch altogether in favour of a simple toggle like I had on my BSA.

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