Craftsman tractor engine compression or timing issue
I have inherited a Craftsman Lawn tractor and am trying to get it going. The engine seems to be having either timing or compression problems.
A mouse had made a home behind the petrol tank and chewed through some wires. I fixed the wires and the electrics are now good. It has a new starter and spark plug just before I started working on it. A neighbor has checked the timing and believes it to be good but doesn't have the knowledge to work out what is wrong.
The engine spins freely with the spark plug out but not with it in.
Spark plug in:
Spark plug out:
Is this a good question?