Chainsaw Repair

Good looking saw. 70.7cc I believe. 50mm bore x  36mm stroke.

Does the 445 have the air injection system?

Which air filter set up does it have?

Magnus has the Partner 710 which I think is it's sister saw.

The 710 surely is the "sister saw", and they both have the air injection. The ones that didn't was the PP415 (and possibly early P660s), the PP475, and early P7700s and 2077s.

When I say "didn't have", that actually isn't 100% true, as they had "induction through the fan", but a pre-filter instead of the "duct" of the fully developed version.

Btw, the first saw that I have evidence had the fully developed air injection was the 262xp, mid 1989. The P7700 series saws didn't get it before 1992 (or late 1991).