finally got a zenoah and its my first and im not sure how they are wired up i have a single black wire coming off the source coil where does that go?

probably a really silly question to some but im pretty lost and its a new learn curve with these engines!

It's for a kill switch if you want to add one. Otherwise, unused. Most people use the 'brake' funtion on the radio to stop the engine by closing the butterfly. A killswitch can be handy, but can also be the source of electrical problems.

thanks for the reply its all new to me!

cant believe i got a negative karma for asking questions, thought thats what a forum was for for sharing and finding out info lol

Asking a question should never result in negative karma.
You have a karma plus from me
Good luck, and keep posting!

Cheers

Woodie.

Hey Woodie, How's the engine rail project coming?

Thanks woodie,
Im sure i will have more questions in the near future!

The Karma function is reader done ... No reason for a negitive in this instance IMO.
So gave you 1 Karma point back

Welcome to MGB ... post often !

The only reason I knew what the black wire was for is that my source coil failed last week and I read about the black wire while trying to diagnose the problem. Apologies if I gave bad Karma, how does the Karma system work?

Site users give u + or - karma depending on if you are helpful, knowledge etc. Up to us to give out the karma --- good or bad

Cheers

Randy

If the black wire gets contact to the mass of the housing the ignition will be switched off and the engine stops suddenly. If you do not want to use that black wire: isolate it to prevent a mass circle.

And: if some guys do have issue with kill switches they have bought junk (is on the market, indeed) or are not familiar with the manuals. If you have bought a proper unit and if you are familiar with that manual you won't get problems and have a save boat.