carb problem: no fuel in one of the bodies

[GS500spain]

Hi everyone. This is my first problem with carbs.

The left butterfly is completely dry while the right is wet. I suppouse that there is no fuel flowing to the left carb so i want to know how to clean the carb without modifying the carb adjustment. I have no idea how to adjust the carb, so i just want to clean it and see if that solve the problem.

Thanks!

[Big Rich]

You need to figure out if no fuel is going into the carb (floats and float needles) or if no fuel is flowing out of the carb (jets). My guess would be a sticking float needle.

Did you check float height wwith a clear tube by chance?

[GS500spain]

Hi Big Rich.

I havent check anything because i haven't dismantle a carburetor before and I am scared how to do that. I've searched for manuals but the only thing i find is for the old carburetor (black top with the vaccum ports in the top)-> http://s205.photobucket.com/user/ben_2_go/media/Motorcycle%20Stuff/Mikuni%20BST33SS%20Carbs/engineside-1.jpg.html. Mine is different, a newer version i think. It has two electrical connectors in one side and the top is grey, not black -> http://s1206.photobucket.com/user/adidasguy/media/Technical/IMGP1728.jpg.html

The only think i checked is I can drain the fuel via the screw in the bottom. The fuel goes out with a some little particles, so maybe it is clogged inside.

Where can I find the manual for the newer carbs?

Many thanks.

[CanRider]

Hi Big Rich.

I havent check anything because i haven't dismantle a carburetor before and I am scared how to do that. I've searched for manuals but the only thing i find is for the old carburetor (black top with the vaccum ports in the top)-> http://s205.photobucket.com/user/ben_2_go/media/Motorcycle%20Stuff/Mikuni%20BST33SS%20Carbs/engineside-1.jpg.html. Mine is different, a newer version i think. It has two electrical connectors in one side and the top is grey, not black -> http://s1206.photobucket.com/user/adidasguy/media/Technical/IMGP1728.jpg.html

The only think i checked is I can drain the fuel via the screw in the bottom. The fuel goes out with a some little particles, so maybe it is clogged inside.

Where can I find the manual for the newer carbs?

Many thanks.

So I just got done screwing around with the carbs on my GS500... if you're doing only a partialy disassembly there isn't too much to worry about. Draining / removing the carb float bowls can give you an idea of whats going on in their (in terms of dirt) and give you an idea where to jump on from there.

What year / model do these carbs come off of? Some more details may help one of the more experienced riders here. I'm guessing that layout isn't one of the fabled 'california models' I keep hearing about.. so I don't really know what to tell you, other than not to panic about removing float bowls only. Exploratory surgery is surprisingly easy on these carbs

[fakejimmymorgan]

Id whack some clear tube on the float drain outlet and check the height (no disassembly needed at all).  I find that the clear hose from line trimmers is the perfect size.  It could be simple as crud blocking the inlet on the carb. Definitely isn't rocket science as my father tells me. blocked float needle, seal gone providing no vacuum, (gunk is the most likely culprit).