TR7 starting issue

[Stuart Wilson]

I've not used the TR since the RBRR in early October. Car has just sat on the drive.

I'm back home for a couple of days and thought it would be best to move it inside.

Go to start it and it eventually fired, but as soon as let go of the ignition key it stops. As if it's losing ignition feed I guess.

I'm not going to be spending anytime at the moment looking at it. But will heed to do something with it when I'm back home over the Christmas period.

Any suggestions?

I'm thinking of rigging up some switches to bypass ignition switch to see if that's at fault 

[Howard]

if it starts, it is being fed 12v via the boost circuit. Releasing the ignition switch diverts the feed to the ballast resistor circuit (integral to the wiring loom) to feed at 6v - the resistor can fail & give these symptoms.

PM me with your email address and I will send you a much easier to read wiring diagram.

Cheers

Howard