I wouldn’t use any kind of a puller with those four holes as they are threaded 10-24 for the sheave screws and the screws used with a puller might break off opening up another can of worms. Here’s where a flywheel knocker comes in handy or else run the flywheel nut up flush with the threads on the crankshaft and give it a good sharp blow with a hammer while lifting the motor by the flywheel at the same time. The motors weight has to be supported by the flywheel or it can be damaged inside. This is how I remove the flywheel on my F-70 and it works every time.
I can’t find a pic of or link to a thread on making a knocker out of two nuts and a bolt with the same threads as the crank has. It’s real easy to make and maybe someone else can help. FR?
.
