Chainsaw Repair

660 nailed it in post #3. And not only isn't it the clutch, I don't think it's the chain unless as suggested, it's filed way too aggressive.

It might just need more fuel. These saws come out of the box much too lean. (as far too many do these days) When I'm setting these up for customers, the RPM's actually go UP as I'm opening the hi speed jet.

I have a tree company that uses these things all day long. (both 445's and 450's) I'm actually surprised at how well they hold up in that role. They started buying them when I had the refurb units because of the price, and stuck with them for the last several years. The only one that actually fried was straight gassed. They are all set up with 18" Total super bars and 21LPX chain.