SOHC.co.uk Forums > CB350/400

Starter button no go.

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Athame57:
Electrics, my favorite topic  ::) Pressing my starter button is doing nothing, sometimes when this has happened I've hit the button with the kill switch on, turned it back and hey presto...voom voom. Alas, this past week nothing happens whatever I do. Kick start works fine and battery plus all other electrics just fine. I'm not sure if I should tinker with the switch gear or find out (how?) if the starter solenoid is up the creek.  :o  Any suggestions?  8)

taysidedragon:
If it's starting with the kickstart the problem is most likely bad contact at the starter button or a problem with the solenoid.
First and easiest attempt to fix would be spray some contact cleaner or wd40 down the edge of the starter button and see if that makes any difference.  Living outside there may be moisture or corrosion inside.
If that doesn't work you'll have to dig deeper, taking the switch halves apart. You can bridge the solenoid or bypass it temporarily but if you don't have the tools or cables it would be best to get help.

Bryanj:
Right, depends on how old the bike is, early bikes grounded the yellow red wire to the handlebars, later ones with starter safety circuit put power to the solenoid.

You need to undo the RH switch and see how many wires and what colour go to the starter button

TrickyMicky:
I am NOT an electrician, but before you start pulling things apart, a couple of simple checks. IS the neutral light working? If you have the clutch switch fitted, try it with the lever pulled in.  With the ignition on, get an old screwdriver and bridge the two large terminals on the starter solenoid to check the starter motor, providing that the battery is fully charged!! Take the headlamp out of its shell and look for any bullet connectors that may ahave parted. If none of this works then you will have the PITA job of splitting the handlebar switch. Best of luck, Mike.

K2-K6:
If you go to the "signal" wire that commands the starter solenoid, then provide input to that to see if it starts.

This effectively splits the system in half to see if the problem lays in the request part or the action part switching and running motor to turn the engine.

Check the terminals are tight on, successively the battery, the solenoid large terminals, the starter motor, as they won't take the load needed if loose, but may give you that intermittent situation.

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