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Main Area => General GS500 Discussion => Topic started by: Oreobob on May 10, 2004, 09:45:06 AM

Title: Choke/Throttle trouble
Post by: Oreobob on May 10, 2004, 09:45:06 AM
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.
Title: Choke/Throttle trouble
Post by: scratch on May 10, 2004, 10:15:05 AM
Check your idle screw. Screw it in to raise your idle. At least 1100rpm.
Title: Choke/Throttle trouble
Post by: Oreobob on May 10, 2004, 10:18:57 AM
Yeah, tried that. Idle wouldn't change too much no matter how much I turned or which way. I'm stumped.
Title: Choke/Throttle trouble
Post by: scratch on May 10, 2004, 10:22:07 AM
Cam-chain tensioner too tight?
Title: Choke/Throttle trouble
Post by: Oreobob on May 10, 2004, 10:35:35 AM
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
Title: Choke/Throttle trouble
Post by: aslam on May 10, 2004, 10:40:09 AM
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.
Title: Choke/Throttle trouble
Post by: Oreobob on May 10, 2004, 10:46:15 AM
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.  :)
Title: Choke/Throttle trouble
Post by: Oreobob on May 10, 2004, 06:22:59 PM
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.