150 and up is good. WOT and pull the cord till the needle stops climbing. An 038 mag is a pretty stout saw stock, I think before I spent a bunch of money getting it ported, I'd try it first and see how you like it.Ok so I'm sure this has been covered in other threads BUT! What is a good compression for this saw? And what is the proper procedure for doing a compression check? The way I've always done it on saws is 1. Wot 2.check compression on first pull 3.continue pulling until the needle stops moving. Is this correct?
Plus one more thing. Since I'm basically going through this entire saw. Would anyone recommend porting the cylinder? I already plan on doing a mm. Thanks.
Edit:
Also what's the "squish" I always read about?
Squish is the clearance between the cylinder 'head' and the piston at TDC.