Bike sat 1 year, now it dies at 1500-4000 rpm, runs fine otherwise.

[CentralCoaster]

My GS sat for about 10 months.  I got it back and was able to get it running, but under 4K rpm it would sputter and die.

I pulled the carb apart, found one of the small (idle?) jets was plugged.  Cleaned that.  All else appeared ok, I also lubed the slides, adjusted valves, cleaned and gapped plugs, put in fresh gas.

Bike idles great, but if I give it any throttle it sputters and hesitates bad just like before.  Moving the choke makes the rpm wander around, but I can't ride the bike unless I keep it over 4K rpm.

Arrgh.   

[Paulcet]

Another clogged jet somewhere, or air passage maybe.  Check fuel level too.

[Dr.Sparkie]

totally. pull your pilots out and blast the carb with carb cleaner and compressed air until it runs right.

[CentralCoaster]

Blasted out the carb too, but I guess I can do it all over again.  Might need to drink heavily though first before I bother with the bike again.

All 4 jets are fine.

I'm not sure how floats would go out of adjustment after sitting 10 months, the bike ran perfectly before that.

I would suspect the petcock, but if that was clogged, I'm not sure how the bike could rev to 5000K, unless maybe it's intermittent, it basically rules out a fuel supply problem.  I'll double check by running the bike in prime, on, and reserve anyways.

[Paulcet]

Sorry, when I said "fuel level" I meant the level in the float bowls.

[CentralCoaster]

Yeah, I was just saying, as far as I know the floats are adjusted by bending the tab on the float, but the bike ran fine before and those haven't been changed.  I don't mean to sound ungrateful, I'm just kinda pissed off right now that I spent all that time fussing with it and it's still not rideable.