I presume gas two strokes are the topic of discussion. If you think about it a pull starter with a vigorous pull will flip the motor over quite fast so I wouldn’t worry about using an electric starter. If it has anything over 90 lbs compression it is run able. It will only get better as the engine becomes oiled up from running and the rings reseat themselves. Compression checks should be done with the throttle wide open to allow unrestricted air flow.

More important than compression is crank case sealing. If there are leaks the engine will become hard starting or unrunable. Using snoop or a soapy water solution, roll the engine over slowly dripping the snoop on the crankcase seals and joints. The odd small bubble is nothing to be concerned about but obvious bubbles or the snoop being sucked inside the engine is a definite warning sign. At this point minimum would be seal replacement most likely bearing and seal replacement.

If there is compression and no obvious air leaks from the seals or crankcase joints go for it the engine should run. OOPPS my bad meant 90 lbs above.

Dennis