Timing question in stock location

Depends on engine and flywheel, A stock clone of a GX200 Honda would be at 20* if they clone a GX160 it would be 25* but you have to check each engine, a 160 flywheel will go on a 200.
It depends on the crankshaft key location. With a straight key on a stock wheel it could be anywhere from 12 to 18 degrees.