RE: Prop size for Homelite gas conversion
A homelite 25 with the stock (20) carb uses a 16 X 10 and turns about 7000
We need to know the number on your carb? Or something about it anyway.
It looks like a Carr Precision muffler and a CH ignition conversion
A 25cc will have a divider in the exhaust port and a 30cc will not unless someone removed the divider from the Homelite 25.
Homelite 25 or 30 with a (28) carb will pull a 18 X 8 7000/7400