Thanks for the reply two tired. I just pulled the airbox and all 4 carbs are squirting from the accel pump, but I don't know how you would see them dribbling as they are behind the slide-right?
"Behind" is a matter of perspective. They are at the entrance to the carb mouth. The brass posts. The outlets face the slides. You can use an inspection mirror to see the outlet holes.
As I was setting floats before -the weight of the floats does not depress the needle at all with the float weight on them,that is why I did it that way.
Then they are not the stock needle design, or the spring pin is stuck.
I'm not sure how to predict proper function when design elements are changed, or not fully functional.
Have you run clear tubing from the drain up the sides of the bowl to ensure proper fuel level in the bowl? It should be about 1/8 inch below the bowl gasket surface.
They are new float needles-Hope they are not the wrong ones, but they do shut off flow when depressed.
New from what source? I guess I just want to know how you know they were the correct parts for those carbs. I didn't think the float pivot geometry would allow solid needles to perform as expected. Perhaps if the overall length was adjusted just right... Do they have rubber tips?
Also can you tell me if the rubber tube towards the rear is a vent tube and just sits there open. (The smaller rubber tube with the plastic fitting then a piece of rubber hose about 6 inches long that sits behind the fuel supply hose.
Yes, it is a vent to allow atmospheric pressure to sit on the fuel in the carb bowls. That's the pressure that pushes fuel through the metering jets. The tube normally extends back behind the engine and in front of the swing arm. The tube keeps water, dust, and insects out of the carb's fuel reservoir chambers. (Bugs have very small brains, yet severe wanderllust.)
I will do some reading and then pull the carb bank (again) and check out the check balls, if I can find them. Should I be able to depress them and have them pop back up as I would imagine they have a spring behind them. I will let you know....thanks again, luder
The accel pump is located on/in the #2 carb bowl. The check valves as not easily accessible, have a square block pressed into the access hole preventing disassembly. They must be checked with fluid pressure to ensure one way flow. There is one check ball in the pump cap and another in the bowl body, if I recall correctly. One keep the pump from pushing fuel back to the carb bowl reservoir, the other keeps fluid from coming back from the outlet nozzles. I don't if the check balls have a spring on them, as I have never need to take them out Soaking in carb cleaner and using the aerosol cleaner pressure was all I ever needed to get them operational again.
While you have the pump off check the sealing gasket. The mickey mouse ears need to have a hole in them about the same diameter of the holes it seals. These gaskets can get squished shut and make the pump perform poorly, if at all. Do this while you are there to circumvent future issues.
Cheers,
