Prorun 55.5cc Chainsaw
This is my goto chainsaw for cutting bigger stuff. It's a Prorun 50.5cc with a 20-inch bar. This saw cuts really good with lots of power. The other day I was cutting some big logs and the chain stopped. This was the second time this ever happened since I owned this saw. The reason for the chain stopping was because the sprocket at the end of the bar would get clogged up with sawdust. It was no big deal, just loosen the chain and work the sprocket free with a little oil on it.
I think it was the next day I was cutting some more of these big logs which some I left because they were too big and heavy for me to lift up into the back of the truck. Then I came up with the idea of seeing how hard they would be to cut in half so I could them load them.
When I went over to get the chainsaw where I put it, I kind of remembered that I knocked it over on its side at one point. I didn't set it up right because I knew I'd be grabbing it again in a few seconds as soon as I got the log I was going to cut in half into position.
When I started the saw and went to make my cut, again the chin wouldn't turn. So I loosened the bar, and went try and free the sprocket at the end of the bar, but it turned freely... humm. I then removed the bar and went to turn the clutch, it was tight and really too hot to try and turn it by hand, so that was the end of my cutting for the day.
When I got home, the clutch cold off enough that I could try turning it by hand, it was too tight. I then removed the snap ring, a washer, then put a rag around the sprocket on the clutch and with pilers, worked it off the engine shaft.
After I got it off and cleaned it up.... I seen what happend... (THE STUPID PART), when I knocked the saw over on its side, I must have engaged the break on the saw! This is why the chain wouldn't turn. DUH!!!
Of course, I gave this no thought because I never use the break, so why would I give it a thought that it was on? So when I put the clutch drum back on, it ran fine. At least the inside of the clutch and the clutch drum got a good cleaning!
Another thing I like about this saw is it seems to always start. When its cold, it might take one or two pulls with the choke on, the one pull with the choke off. After it's been running and its hot, it almost always starts with one pull.

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