1. hone the cylinder - replace the rings on the piston(s)
2. reseat the valves - hone the valve seat and the top of the valves so they
close completely.
3. As long as you have the engine apart you might as well replace bearing,
bushings and seals with an engine rebuild kit that should come with piston
rings.
4. If you can do-it-yourself, you'll save money. If you have to have pay
someone to do it, it might be cheaper to buy a used or rebuilt engine.

"Joseph A. Zupko" wrote in message
. net...
The tiller has a compression rate of 30. Is there's a inexpensive way to
fix it? The cylinder wall is scorched. Or is the engine shot and not
worth
fixing?
thank you