Bike won't stay running.

[jjz]

Hi All.
I recently purchased a 2001 GZ250 as a beginner bike to learn to ride on. After the first few weeks of having it, it ran fine, and now I can't keep it started.
When I start the bike I have to hold the throttle all the way open to get it going and it stalls as soon as I release it to an idle. Any suggestions on where to begin on figuring out my issue?

[Fawlty]

Sounds like you need some maintenance on the carb. Others will be along shortly to advise. Good luck.

[blaine]

Welcome.....You can try some SeaFoam in a fresh tank of fuel.....It may take over night to see any results.

[jjz]

Thank you for the replies. I’ve been having these issues I tried sea foam and it still persisted on messing up. I also rebuilt my carb and it’s still acting this way.
Got my endorsement recently and all I wanna do is ride the damn thing.

[derbydave]

Did you rebuild the carb in an effort to fix this problem? Did you drill out the plug and service the pilot circuit?

[jjz]

Yes I rebuilt the carb to try and fix the problem. That’s what someone recommended Me to do. I did not drill anything. I did not drill out plug and service pilot circuit.

[derbydave]

The pilot circuit needs at the very least to be cleaned and have a new O-Ring installed. If you bought a carb kit it probably came with a tiny O-ring. That one is for the pilot. There is a brass plug on the underside of the front of the carb that needs to be carefully drilled out to access the pilot circuit. The plug (see pic) is only about 1/8" thick and under it is the pilot screw. Drill too far and you can damage the screw. After the plug is out unscrew the pilot needle and clean everything taking care not to damage the needle or spring. Screw in the pilot needle gently until it bottoms and then back it out 2 1/2 turns. Adjust further from there based on how it runs. No need to replace the plug

[jjz]

Yeah I believe I replaced that it’s got a needle point at the tip a spring and o ring so it had to be screwed in at a certain point? Sorry newbie here haha

[derbydave]

How far did you back out the screw once it hit bottom?

[jjz]

Yeah wasn’t sure if it was suppose to go all the way in or not. You can see the pinhead through the open part of the carb

[derbydave]

That's in way too far. Screw it in until is stops and then back it out 2 1/2 turns. That is a good starting point.

[Vegas Street Rider]

Another thing you might check is the fuel petcock. Set the switch to Prime and see if it runs. If so, install a rebuild kit. Also check the small hose on the back side of the petcock to make sure it is connected to the carb.

[jjz]

Alrighit im gonna turn that 2 and 1/2 turns out tonight and also check the peacock out as well thanks a lot guys. I appreciate your time. I’ll let you know if anything changes. Like you said it’s a start haha. Just want it up and running patience I guess