New Member Thanks for the add

That is by design, engine will crank but no spark when the kill switch is off , I ruled the kill switch out when you said had spark

 

You can try disconnecting the reg/rec plug. That will leave you running total loss and draining the battery.

I don't think it's likely that a reg/rec can stop a bike from starting, but you never know, there are all kinds of strange gremlins in old bikes sometimes.

Have you tried roll starting the bike down a hill? Be prepared to push it back up though

 

Put brand new plugs in it.
Check your current plugs with a multi-meter if you like.
All plugs measured between cap connecting post at the top and the body should show open circuit. Any resistance value other than infinity (high meg ohms), just throw the plugs away.

Peter.

 

Ok. Check the plugs all the same.
I have had brand new plugs go bad after a short run when the carbs have been playing up.
Once they foul up, you just can not reliably clean them.
A multimeter test is easy to do.


You can rebuild the plug boots. They are difficult to pull apart but can be done. They are nothing more than a few contacts and a little 5k ohm resistor slug.

Cheers

Peter.