that is a possibility. however, i am reluctant to advise adjusting the floats unless you know what your in for. skilled hands and a good eye, as well as a fairly accurate measuring devise.
unless you messed with the tang, or someone prior to you not knowing what they were doing altered them, 99% of the time the float will come out and go back without requiring any adjustments. this assuming they were properly adjusted to start with. the tang on the float is quite fragile and it doesnt take much to break it. it doesnt take much adjustment either to really upset the fuel flow.
you can check the float level easy enough. with the carbs out of the sled and sitting on a level surface, fill them with fuel using the fitting that the fuel supply line would normally attach to. when they wont take anymore fuel, carefully remove the bowls, note the fuel level, and compare with the other carb. easier if you do one carb at a time.
next method is to observe the needle in the seat. carbs empty of fuel, bowls off. with the carb upside down, slowly rotate the carb until the float starts to move. keep a close eye on the needle. at the exact moment the tang on the float is no longer in contact with the needle, measure the distance betwwen the bottom of the float and the mating surface where the bowl would attach. compare to spec for your sled.
play with that concept for awhile and its easy to see how, in the wrong hands, the floats could easily be misadjusted. you can also see exactly how the needle, seat and float work in conjunction with each other. start bending tangs back and forth a few times and you may be looking for a new set of floats. it doesnt take much of an alteration to radically increase/decrease fuel in the bowl.
have a look, see what you think.
