Carb repair idle problem jets interchanged

[gzvirgin]

Just bought a 2007 GZ with 800 miles on it for $1,100. Not a bad deal I thought, until I got it home and it wouldn't idle when warm. Starts perfect, but once warm it would NOT IDLE. I rebuilt the carb, new everything (not just the gaskets, etc). Same problem. Tinkered with everything, took that carb out and put it back in a dozen times. Then I read that the Main Jet and the Pilot Air Jet are the two that control the idle mixture. I went back to the parts diagram and discovered that I had interchanged these two jets (they fit in both holes). I wasn't reading the parts diagram correctly - 30 goes into the side of the carb and 28 is under the diaphragm. Anyway, thought I might save someone some time by posting this. Oh - and I'm new to the forum.
Thanks.

[Vegas Street Rider]

Welcome to the forum gzvirgin. I am sure you will save someone lots of time and frustration with your post. Sometimes it's the little things that can drive you nuts. Enjoy the forum. It is a great place to learn pretty much everything about your new ride. I own a '09' GZ and love it. It is my daily commuter and fits the kind of riding I do these days. I think you will enjoy the simplicity of this bike which allows you to do most, if not all, of your own maintenance depending on your mechanical ability. Safe riding.

[Water Warrior 2]

Originally Posted by gzvirgin

Just bought a 2007 GZ with 800 miles on it for $1,100. Not a bad deal I thought, until I got it home and it wouldn't idle when warm. Starts perfect, but once warm it would NOT IDLE. I rebuilt the carb, new everything (not just the gaskets, etc). Same problem. Tinkered with everything, took that carb out and put it back in a dozen times. Then I read that the Main Jet and the Pilot Air Jet are the two that control the idle mixture. I went back to the parts diagram and discovered that I had interchanged these two jets (they fit in both holes). I wasn't reading the parts diagram correctly - 30 goes into the side of the carb and 28 is under the diaphragm. Anyway, thought I might save someone some time by posting this. Oh - and I'm new to the forum.
Thanks.

Welcome gzvirgin. Good catch concerning the jets. And yes you will surely help the next rider with carb problems due to a mix up.

[Way]

Originally Posted by gzvirgin

Just bought a 2007 GZ with 800 miles on it for $1,100. Not a bad deal I thought, until I got it home and it wouldn't idle when warm. Starts perfect, but once warm it would NOT IDLE. I rebuilt the carb, new everything (not just the gaskets, etc). Same problem. Tinkered with everything, took that carb out and put it back in a dozen times. Then I read that the Main Jet and the Pilot Air Jet are the two that control the idle mixture. I went back to the parts diagram and discovered that I had interchanged these two jets (they fit in both holes). I wasn't reading the parts diagram correctly - 30 (120) goes into the side of the carb and 28 ( 87.5) is under the diaphragm. Anyway, thought I might save someone some time by posting this. Oh - and I'm new to the forum.
Thanks.

Edited to add Jet Sizes