roundhead
ArboristSite Operative
I need to get a bar and chain for an 039 rebuild. I ran it with my .325 chain and 7t sprocket to try it out, but it had an 8T 3/8" sprocket. Is there much difference in the two sizes? How do you know when it is time to replace the sprocket? the 3/8" sprocket has notches on it but my .325 does not. Is that normal or is that wear?