This has been happening since I got my valves checked. When I start the bike, it starts perfect and idles a little higher (since it's cold), but after about 20-30 sec, the idle drops and is just way too low, blubbing almost like it's going to die, but not quite that low.

The bike runs great and there isn't any throttle issue, it's just mostly at stop lights and normal idling you can tell it's too low.

Thoughts?

 

A few more tidbits of info.

When you turn it on, it goes straight to 2k to warm up, then exactly 30 sec later it drops to about 1200, after that it will occasionally work it's way up to about 1700 for a split second then fall back down to about 1200 again and repeat. It's not a fast up and down.

 

So you're saying this was not happening before you had your valves looked at, and now it is doing it? I'm seeing a pattern here. Where did you have work done and what exactly did they do? Were any of the clearances out of spec? If so, they had to remove the cams and that lends itself to potential mistakes.

 

Have you checked for any possible vacuum leaks or lines that didn't get put back on? When I did my valves I had a little vacuum tube that I forgot about and that caused a bit of a problem...