Originally Posted by wmeabates
Roadkill,When the spark retard delays the spark the rotor has passed the cyl it was to fire.The spark goes to the next cyl in the firing order that has just started to compress.full of air fuel mix and about 100 degrees BTDC causes the kick back.Big cap allways a good thing with high compression. Bill.
We found that it was firing back to the one it had just passed on full retard . . but a little study of what was available and why, problem solved . .
Another thing about the "Big Caps" vs. the little ones . . with the high energy coils we use today, a little cap can (and does) have a literal lightning show going on inside at high RPM . . Things are just too close . . and with crank triggers, where the rotor is can be a moot point . .