PK125s crank

Does anyone know which crank is in the PK125s (small taper 19/20 or large taper 20/20)?

I have a primi/ET3 full circle crank I would like to use but not sure if it will fit in a PK125s engine.


For anyone interested, I got the engine and pulled the crank - it’s a small taper (19/20) crank.



you have to use this crank 20/20 with a electronic ignition





Thanks for the reply -

However, I have received conflicting information about the PK125s flywheel - other people have told me that it uses a small taper crank.

Not that I don’t believe you, but could you clarify for me?

I’m still so confused, and I don’t have access to the engine to check for myself.