Starter Clutch. And, Only Runs On Choke

[flainn]

I got my GZ250 running, finally. Took six weeks to get the parts.

Anyhow, I've got two questions:

I reassembled the generator compartment (there was nothing in there before except the end of the crankshaft). I seem to have a problem with the starter clutch, though; the starter is cranking the starter idle gear, which in turn cranks the big gear on the crankshaft -- but that gear is not turning the crankshaft; it's just spinning. I must not have assembled it correctly. Any suggestions?

Needless to say, the starter doesn't start the bike. But I can push start it (man, that sucks). The thing of it is, though, that although it does start up just fine on full choke, I can't get it to idle below about half-choke. And, if I throttle it at all, it cuts out (and will die unless I let off the throttle very quick). It runs great on choke; very smooth ... but if I put it in first and try to take off it dies.

It had year-old gas in it, which I have since drained and replaced with new gas. Replacing the gas had no effect.

Does it seem like my carb is clogged or something? Is there a way to fix that other than dismantling the carb?