It's a simple motor and doesn't take much to throw it off. The threaded nipple attached to the spark plug on one of the cylinders had either fallen off or been missing since forever. Motor ran ok but it idled badly and it was very ragged at high revs.
Damn lead fell off and when I looked at why I realized that there was not much holding the lead there! Replaced the plugs and made sure that the gaps were right and it is a new motor!
