Rough Idle

[99GSXR750]

So when I first start my bike it has a rough idle. If its choked, it runs fine until i take the choke off, then its rough again. After I ride it for a few minutes it idles fine. Its at about 22k miles, so its due for a valve clearance check. Could this be the problem, or could it be spark plugs or something like that?

[BHeth]

To be honest it just sounds like it isn't warmed up yet. If you ride for a few minutes (til the idle clears) then shut it off then turn it back on is the idle smooth?

[99GSXR750]

It'll be warmed up and still rough. The temp will get up to 130-150, and before I ride it the idle will be rough. Once I start to ride its okay, but if I go somewhere, let it sit for 30-45 minutes, its rough again. Its not really rough, but it used to be a lot smoother.

[BHeth]

Its not really rough, but it used to be a lot smoother.

When was your last tune up? Are your injectors clean? Plugs? The 99 was FI, right?

[99GSXR750]

It is FI. My last tune up was quite a while ago. That's why I was going to take it in to get the valve's adjusted, and was considering the entire service, even though it costs around $500.

[BHeth]

Ouch! Besides the valves, what do they give you for $500?

[99GSXR750]

The valves are around 250, and the rest of the service is 250. They do oil, spark plugs, chain cleaned a lubed, all that happy stuff. I could probably do most of what the service is, but I want to make sure I get the valves done.