As has been explained previously, the most common float level check is done with the carby off the bike and held in the horizontal plane, using a piece of tubing on the fuel inlet and gently blowing in the tube while at the same time raising and lowering the float to find the point at which you cannot blow into the tube. The float should be sitting in a horizontal position at that point. If it isn't you need to adjust the tab that locates the needle valve that shuts off the fuel. This is a rule of thumb adjustment only.
SOURCE: float height on 92 RM125 with mikuni TMX35-1 carburetor
Hi,what I do is just bend the flange that dose the top of the float is level with the top of the float bowl,then put then screw the bowl back on hold the carb level put the fuel line on and see if the fuel is comeing out,if not job done,if there is fuel still comeing out then adjust by about a ml and try again,all the best.
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