There are some parts that will interchange on some models, but it is a lot more complicated than your might think.
Some crankshafts, some connecting rods, probably some pistons are the same. The crankshaft seals and mufflers (with some exceptions...) will interchange. The starter rope and handles will interchange...
The cylinder and crankcase for the PM 6 models is distinctly different from the Mini Mac models.
The flywheel will interchange on early models, ignition coils and condensers are the same...
The starter pulleys are even different, the PM6 are smaller in diameter and the hole in the center is smaller.
They both use MDC carburetors but the fuel inlets are different, and the choke shaft is different so you even swap the carburetors (after changing the fuel inlet portion).
Mark
Some crankshafts, some connecting rods, probably some pistons are the same. The crankshaft seals and mufflers (with some exceptions...) will interchange. The starter rope and handles will interchange...
The cylinder and crankcase for the PM 6 models is distinctly different from the Mini Mac models.
The flywheel will interchange on early models, ignition coils and condensers are the same...
The starter pulleys are even different, the PM6 are smaller in diameter and the hole in the center is smaller.
They both use MDC carburetors but the fuel inlets are different, and the choke shaft is different so you even swap the carburetors (after changing the fuel inlet portion).
Mark