[Spridgets] Electrical Problem

[David Lieb]

> I have a start up problem with my 1968 midget. when i turn the key to
> start the engine the starter motor turns but the engine doesnt spark up.
> It's only when I release the key that it does fire up. It's as though the
> plugs only made a spark at the exact moment when I release the key. It's
> not such a big issue as i always end up managing to fire up the engine,
> but i have to rate if i've held the key long enough before releasing it.

Max,
It sounds like an issue with the ignition switch. You should be able to test 
it by using a hot wire to supply +12VDC to the red/white wire at the starter 
solenoid. This will kick in the starter, so please be sure that it is out of 
gear, e-brake is set, etc. If the ignition key is on, you should be able to 
start it up this way and tell whether you are getting spark while cranking 
(easily verified with a timing light). If you are getting spark while 
cranking this way, it is probably the switch, but I do not have a wiring 
diagram here to eliminate alternate diagnoses. 1968 Spridgets did not use a 
ballast, so there should be no bypass issues.
David Lieb
1972 1960 1974 1973