Hi, I bought this not long ago for a modest sum. when I brought it home I checked the flywheel gap, removed the flywheel and everything seemed to be original and the key hadn’t sheared. I’m pretty sure I checked the part numbers to see if they were right.
the saw has a new cylinder and piston not sure whether it’s OEM or not but the casting looks like good quality.
I wondered whether the ports could be slightly different and this might effect the timing slightly?
Sounds good, not saying you have another issue- all might be correct, just letting you know there can be other issues that can cause hard starting- another is carbon build up in the combustion chamber.
Main reason for my contribution is, I am currently building an 064 from the ground up and I am using later style cases that accept both styles of coil, original flywheel and universal coil. The check is to find piston TDC and compare the magnet position of the flywheel relative to the coil.
Post a photograph of the magnets and coil at TDC and
@L34 can confirm if it looks correct.
As for aftermarket Elastostart assemblies- bin them- they are shite.
I fitted one to a 281 and pulled the handle off of the rope first pull. Fitted a genuine Stihl one to the same saw with no further alterations and it is a gem to start.