RE: 30cc homelite engines
You can buy a new 30cc complete block assembly with out the Flywheel-mag and the carb spacer - carb and muffler for around $75 at the chainsaw place. Then the carb is $40 and the Flywheel is $40 and the Mag is $40 etc. But if you have an worn out 25 doner engine it's no big deal?
Enjoy,
Jim