I picked up a Homelite Timberline 45 cc yesterday of CL. Poster said it had an issue in chain not staying on. I figured it was simply that the chain was broke in it got loose. Got there and got a different story. Husband of the poster said the issue was it wouldn't cut even with a new chain. I figured maybe an issue with the clutch. In either case for $25 I could play with it guilt free and learn something in the process. Got a chance to fool with it today. After washing out the airfilter (lord it was dirty) and making sure the muffler wasn't choked with carbon I gave her a few pulls and she started right up... as did the chain. After adjusting the idle which was way too high and trying my best to adjust the carb with the limited adjustment it has (darned CA regulations), Try as I may I couldn't find a setting where the motor didn't bog down when I opened the throttle (spark plug?). I tried cutting to see if the motor bogged, chain stalled... No it spins the chain just fine and makes a nice but small pile of dust. The original chain was on there and boy it had seen better days. After shutting it off for a few minutes to inspect the chain I tried to restart but it didn't want to start right up which was surprising as when I was adjusting the carb I had shut it off a number of times and it always fired right back up without the choke. I went to use the choke and noticed it wouldn't fully choke. Opening it up I saw the choke plate was jambed. Long story short the screw holding the choke plate to the pin it spins on got loose, the plate rotated and being it isn't symmetrical it kept it from moving its full range. Anyhow while trying to figure out why the choke plate wouldn't close I pulled the carb and detached the two fuel lines what surprised me was how much fuel started pouring out of the line. Is this normal? If the tank was under that much pressure why wasn't the fuel pouring into the carburetor? Is there a diaphragm in there than shuts off flow?