cranks but no spark at coil
So a few tests. This one pictured no spark. I also tried same test with -ve coil grounded to battery and output wire 1/4 inch from ground. No spark at output wire BUT the ground wire from coil-ve was sparking at battery -ve ???
View attachment 1715094132
Ok, first, the batt. should be at 12.75V, the Red wire should be ~.5V less at the most w/the key in run position unplugged from ballast.
The "other" Pink wire not going to the coil should be going to the Ign sw. cranking terminal, again,~.5V less than Batt.V with the key in crank position unplugged from ballast.
That "Pink" wire runs to the starter relay? Unplugged from the ballast it should only have B+ w/the ign. sw. in the cranking position.
Yes, the wire from Coil Neg. is going to spark, You're grounding the primary side of the coil......but Your supposed to be tapping that wire to ground, mimicking points &
watching for spark out of the coil wire.
Most modules won't operate below 9V, if the Batt. is that low with just the key on, it may be dropping out cranking for sure...........................
Forgot.....'84....could run in to ign.sw. or to starter relay..............what say the
diagram?
