SOHC.co.uk Forums > CB500/550
CB550 F2 Misbehaving...
Steph550:
Had the bike out this morning, fired it up and wiggled the key, the ignition switch, the connector, and the wires around the ignition switch. The bike just sat there happily ticking over.. Ignition switch barrel/connector definitely not loose. Took the bike out for a ride, behaved beautifully. Parked up for lunch, then on the way back she cut out, halfway round a roundabout!
::) I suspect it may be something in the engine cutout circuit?
Steph
Bryanj:
Try the fuses and the connections at the ends
Lobo:
Steph.. if fuses not the answer try feeding (ie hot wiring) the two +ve feeds to the coils (black/white) directly to the battery +ve & then take it out for a spin. Ie, In this way deleting the ignition switch AND handlebar kill-switch out of the circuit. If the bike OK then you've narrowed it down to ignition switch (which you already doubt) OR handlebar loom / kill switch.
You'll obviously want to leave the bike standing for a while to simulate the problem... do disconnect the coils during this time to avoid burning them out. (& indeed anytime the engine not running)
If the bike still misbehaves check the earthing of the points backplate is sound.(a long shot, I know)
If the bike now 'good' have a careful check of handlebar loom wiring - ie feed / return to kill switch connections. Kill switch, as mentioned by Tom, likely the culprit... often you can 'clean' a switch by exercising it on/off a dozen plus times. Not ideal... but can work. Perhaps spray a squirt of switch cleaner in there... tho' again not ideal versus a strip down & clean.
Cheers, & hoping ya don't have to strip the handlebars..
Simon.
Steph550:
Thanks Bryan, have had a look at the fuses and they and all their connections look absolutely fine.
Simon, thanks very much for the advice. I've just tracked down the feeds and return wires to the kill switch and cleaned the connectors. They didn't seem too bad but a couple of the bullet connectors were slightly loose so have made sure they're all nice and secure, and cleaned them up. We'll see if that makes a difference! If not I'll try your suggestion of 'hot wiring' the coils.
Thanks for your help! I notice you're in Hampshire by the way Simon, which general area? If you're towards the New Forest area and see a broken down 550 at the side of the road, chances are it'll be me! ;)
Cheers,
Steph.
Bryanj:
If they are the glass tube fuses its a good idea to take them out and pull gently on the ends as the element inside can come loose on the end cap
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version