Choke/Throttle trouble

[Oreobob]

Another bike, but I figured there may be a common answer. I have a '87 Honda CBR600 and I try to take off the choke or give it a steady throttle, and it'll die. Even if I let it warm up to normal temp, I can only whip the throttle, but I can't hold it. I can also bring the choke about 1/2 way back and it'll still run, but somewhat rough. I hope someone more fuel-knowledgable could help me on what's causing this.

[scratch]

Check your idle screw. Screw it in to raise your idle. At least 1100rpm.

[Oreobob]

Yeah, tried that. Idle wouldn't change too much no matter how much I turned or which way. I'm stumped.

[scratch]

Cam-chain tensioner too tight?

[Oreobob]

Perhaps...I'm going to run down all the vacuum lines when I get home today. Hopefully something's loose or disconnected. I'd hate to get into the CCT.

see it all go down here: //cardomain.com/id/trojanoreo

[aslam]

If I recall the earlier CBR's had the CCT in a location that was much more accessible meaning it wouldn't bee too big a deal to change it out.  I have a 2002 and it is miserable getting to the CCT on that one.  I would recommend going with a manual tensioner if you determine this is the source of your problems.

ASLAM.

[Oreobob]

Yeah, it's REAL easy to get too. Just one cover and there it is. I already have the bike torn apart, so that won't be a problem if it does end up being that. I hope this worthless manual I have explains how to troubleshoot it.  

[Oreobob]

No, it wasn't the CCT. Would it be running lean or rich if it bogs out when there's air introduced into the system? Basically, when I took the choke off tonight, it gave me this "too much air" dying sound. Almost sounded like a gasp. It did the same thing when I barely touched the throttle. The idle won't change no matter how much I turn the adjuster knob. Would a rejet of the carbs or sychro be in order here? I know it's the carb system...I just don't know what to do with it.