82 GS650G Running Issues

[Guest]

Hi All,

I have an 82 GS650G sitting here. It sat for about 2 years. Starts on choke and will get down to about half choke still on idle, however it doesn't come all the way off choke and will stall as soon as you touch the throttle. All that's been done to it so far is fresh gas and some seafoam added to the fresh gas.

Any help, ideas, tips on where to go from here would be greatly appreciated.

Thank you,
Jim

[tom203]

Unless the carbs were fuel stabilized or completely drained before bike went storage 2 years ago, it's unlikely that fresh gas and seafoam will save you from carb fun. Probably full carb rack teardown, dip, (or ultrasonic) ,new o-rings.
These carbs have tiny passages that once clogged, resist quickee cleaning methods. Having to leave "choke" on and unable to advance throttle mean your idle circuit passages are not passing enough mixture.

Did you just get this critter?

[Steve]

Sounds like it needs the typical carb cleaning. Because it actually starts, the valves might be close to 'right', but you won't know if they are close to being 'wrong' unless you check them.

If you want to do the job yourself, don't waste your money on carb kits. Go to cycleorings.com and get the kit for your bike, then grab a can of Berryman's Carb Cleaner Dip and click HERE for the rebuild tutorial.

If you don't want to do it yourself, there are a few of us here that will do it for you, for a modest fee, of course.

.

[chuck hahn]

CV carb rebuild tutorial on right side here..

http://gsarchive.bwringer.com/

Oring kit here. dont waste time ad money on kits you don't need. When removing the mixture screws ( the ones on top and at the rear of the carbs by the head ) first turn them in slowly and stop when hey seat GENTLY..record how many turns in each one goes and set them the same when you reassemble the rack.

http://cycleorings.com/#BS_Series_O-ring_Kit

EDIT,, remove the intake manifolds ( carb holders ) and measure the ID of the groove the oring goes in. See page 3 at cycleorings and put in new intake orings

[Redman]

Welcome to GSR.

Just another vote for carb cleaning. THe symptoms you state are the exact symptoms of carb passages clogged up. And spraying some carb cleaner in here and there is not likely to take care of it.
Keep in mind that each carburetor is actually 3 carburetors all built into one, and it is your low speed (idle) that is clogged up the most.

And another vote for Cycle O-Rings.

[olmstead.jim.w]

Thank you everyone for the good advice and links... I started the teardown on the carbs and found that a part of the choke is broken on the 4th carb. I'm not sure what the part is called, and ill have to wait til daylight to get a good picture, but when I move the choke rod it pulls these little rods out of the carb and the one on the 4th carb the end that connects to the rod is broken off and doesn't pull out currently. So I will be looking into that while cleaning up everything else to put it back together.

[tom203]

Choke plunger pic
image.jpg