So I rented a 391 from the local rental place because I was thinking my 450P was having a hell of a time cutting the tree that I've been working on off and on for the past 2 months. The 391 did well (only came with a 20" bar which I was disappointed with as I needed a 32"...24" minimum to buck the 44" rounds) and I was initially impressed.
The 391 wouldn't start again after going through a tank of gas until I gave it enough time to cool down. Then, while I was waiting, I remembered that a splitting wedge fell on the chain that was on the 450P in the middle of a cut a while back. I had re-sharpened the chain but it was still too much work bucking. So...I put a new chain on and fired the ol' 450P up to cut the smaller pieces. Amazing...I didn't need to rent the 391 afterall.
Lesson learned.
The 391 wouldn't start again after going through a tank of gas until I gave it enough time to cool down. Then, while I was waiting, I remembered that a splitting wedge fell on the chain that was on the 450P in the middle of a cut a while back. I had re-sharpened the chain but it was still too much work bucking. So...I put a new chain on and fired the ol' 450P up to cut the smaller pieces. Amazing...I didn't need to rent the 391 afterall.
Lesson learned.