Topic: Coils

[ajdsad]

I have a '73 cb750 that I couldn't get to start back in late May. I finally had some time today and take a look at it. I'm thinking my coils are bad but how do I confirm this?  I pulled the 1 and 2 plugs and tried to see if it would arc against the engine. I didn't see any arc. I also checked to make sure I was hot to the coils which I am. Any suggestions?

[PeWe]

I searched (Google)  cb750 check coils and found

[martin99]

See this. Reply #4

http://forums.sohc4.net/index.php/topic,17711.msg184209.html#msg184209

[ajdsad]

I'll check them out. Thanks guys.

[madmtnmotors]

Check your ignition system while you're at it, whether it be points/condensers or electronic ignition. I would not expect both coils to fail at once, I would suspect ignition components, ignition wiring, or ignition settings (i.e. points gap). Have you inspected the ignition to confirm it is properly set up and properly connected?

[Stev-o]

I will bet $50 your coils are good.  How old are your points?

[Johnie]

Tuning in...going through the same issue with my current 750K3 project. I to have never had a 750 coil fail so am checking on other ignition issues.