G'day Gadge and WCE
Thanks Gadge for that micrometer logo info .
That's interesting that you have the same logo on the 4BIM starter, mine is missing the starter which is a 3 post mount from memory as opposed to the 4 on the F61
The 3 post top will fit the 3 post recoil starter or the 4 post impulse starter, when the impulse starter is used an alloy adaptor is used.
Cheers
Max