Ignition Coil Help

[Joel]

I have a '75 Honda CB400F and I believe I have an ignition coil going bad.  I was searching eBay motors and the results included CB-1 parts.  The coils looked similar to my stock coils but I'd like to find out more before I buy some.

Could someone tell me the primary and secondary resistance values as well as the dimensions of the mounting bar in the center?

I'd greatly appreciate it. 

[Drewski]

I can't help with the resistances but have a set you're welcome to borrow to examine or try out. However, the 400 Four had points ignition as standard so I would have thought they are different.You should be able to get replacement coils from Electrexworld.