Topic: Magic Starter

[nwest4]

Has anyone run into this yet?  Got a 78 CB750K.  Had bike running nicely and when I went to shut it off with the key switch, the ignition cut out just fine but the starter was engaged and still turning the engine over.  I don't think it was engaged when I was riding, I am reasonably sure I would have noticed that.
Moved key back to run position and ignition came back on and bike was running, used kill switch on handlebar and ignition cut out like it should but starter still engaged.
Finally had to disconnect the battery to get starter to quit.  Anybody seen this before?  Hoping for some input to help isolate before I go checking wiring and switches, I have a pretty good idea how to isolate and how this bike is wired, but any insight is appreciated.  Thanx guys and gals.

[750goes]

Sounds like your starter button is stuck on, pressed in or shorted out  - I would try and open the switch up and see whats happening - otherwise your starter motor is not disengaging after the motor has started...need to remove the starter motor before you do damage to it from leaving it engaged when the motor is running....

[eurban]

The solenoid for the starter is located in the electrics area.  It is cylindrical and has a heavy wire going to one terminal on it from the battery positive and on the other terminal a heavy wire going to the starter motor. It it will have power feed (power to fuse box) wires connected to the same post as the heavy battery wire and also will have some "control" wires which tell it when to allow current to go from the battery voltage terminal to the starter motor terminal.  These control wires should connect to it with bullet connectors.  Basically either your control wires are telling the solenoid to always let current flow to the starter or the solenoid is bad and stuck in the current flow position.  If you disconnect the control wires from the solenoid and the starter still constantly runs then its the solenoid.  If the the starter stops running when the control wires are disconnected then look at the starter switch circuit.  Hope this helps.