I just ran carb cleaner spray through the float bowls and drained all the fuel (old as dirt) and put carb cleaner and new fuel in. Now I have fuel coming out of a hose on the left side of the carbs (nunber 1 carb) right above the fuel rail. It looks like a vent tube of some sort. It only started spilling after the bike started running right. I felt smart to plug the tube and now it won't start or run (I figured it wouldn't work).

Any questions or thoughts would be greatly appreciated.

 

One more theing. Eveybody says to turn the screws 2.5 turns. Arethese the same screws that make the floats drain? Because i need to get at least one new gasket and they are all screwed all the way tight.

 

i would look at the manual or a parts fiche online to see that you have hooked up all the hoses correctly. I know from cleaning my carbs that if you do not have a parts diagram there may be a chance you can mix up the lines.

 

I didn't disconnect anything. I read in another post that it might be extra fuel, I just don't know why there'd be extra.

 

You have a float needle sticking open. The air jets all need to be 2.5 turns out. Don't mess with those after that. You need to pull the float bowls off and see which one is sticking. The reason it won't run is because it is dumping raw fuel into those two cylinders that the drain/vent comes off of.

 

+1 one of the floats is stuck at the "bottom" of the bowl and the needle doesn't go into the seat and too much gas keeps coming in. Take 'em apart and pull the pin that holds the float in there, then take the seat out with a 10mm socket. Clean the crap out of it, and the needle. Then put it all back together and hope for the best. If that doesn't work, you should get a new needle and seat assembly, it's #2 on the "carburetor (components)" fiche.

The "2.5 turns" thing is for the mixture screw, which is in the body of the carb. If you haven't found it, it's probably in the ballpark anyway.

The screw on the actual float bowl that's screwed all the way in just lets the fuel out of the hole on the bottom of the bowl if you need to empty it.

 

The fuel rails use an O-Ring to keep things from leaking, make sure it's in place and not twisted, you might have to replace the O-Rings.

Carb cleaner is the number one enemy of rubber gaskets and O-Rings, the spray stuff will almost disolve them right before your eyes.

Remove all gaskets and O-rings before cleaning the carbs!

Like Gogar said remove the needle seat and below it is a rubber washer and a mesh screen / filter, remover the screen filter, clean and replace.

You will need to sync the carb in order to get the bike to run correctly.....

Good Luck

 

Thanks guys. I'm going to take the carbs apart tommorow. Do the new gaskets come in kits? or do I have to make a list and pick them up as needed?

 

The honda part is a kit that fits a bunch of Keihin carbs, and will have the float bowl gasket, the drain-screw gasket, and an aluminum crush-washer that goes under your needle-seat. It'll also have a few other gaskets that you don't need. If you buy from a Honda supplier, be ready to pay $20-30 per carb. Uh huh. www.servicehonda.com is probably the cheapest. If you don't want to go that way, google words like "Keihin FCR downdraft 32" and you'll find a whole bunch of parts suppliers for your carbs. If your bike is a '90, the parts may be slightly different, as the '90 carb is technically a 32.5mm keihin.