[Mgs] Stumbling / stalling ignition issue?

[Paul Hunt]

If the ignition warning light didn't come on it won't be the ignition switch 
or connections at it, but something else from there to the coil, trigger, 
and 'points' plate ground wire.  If it tends to happen as you are changing 
the throttle this last is the most likely.  If fact do you even have a 
points plate ground wire?  If the Pertronix replaced the 45DM4 ignition 
system then you have to *add* a ground wire, as that system didn't need one. 
Without the ground wire the coil current flow is dependant on sliding 
contacts on the bottom of the points plate, which can give erratic 
connections as the plate twists under changing vacuum.

Other than that if you have a coil with riveted spades these are also a 
known cause of intermittent connections, later coils have threaded studs and 
nuts.

If it's none of those you will have to replace the Pertronix with points and 
a condenser as substitution is the only way of diagnosing those.

PaulH.

----- Original Message ----- 
> I just got back from a trip to and from work. Less than 20 miles each way. 
> At
> about 10 miles each way, I was getting some stumbling.