How To Set Keihin Carb Float Height. Should i measure float height (16mm per factory manual) between the carb body and the line on the float? 5) adjust the float level gauge legs so that they will rest on the carb and will not touch the floats.
Scroll to the bottom of the page and find the picture and info on measuring the float height. Replace the needle and reset the float height is necessary. It would draw too much draft when trying to start it.
It doesn't take much for that tab to be moved, which immediately changes the level of fuel in the float bowl. Because the carbs must be disassembled to access the adjusting mechanisms, i recommend using the above procedure. Hold the carb on like a 45 degree angle so the float tab just touches the float needle, not depress it.
Drain the float bowl to check for water or other impurities. Scroll to the bottom of the page and find the picture and info on measuring the float height. It must be set with the carbuetor body positioned at an angle.
So today i finally rode my 421 cheetah cub for the first time, i noticed every once in awhile alittle fuel would come out on one side, out the overflow, when i put my jets in last night i kinda looked at the float but didnt really look at a way. Just showing a little trick you can use to get a proper float adjustment if your manuals adjustment settings arent working for you. I set carb 4 to 18mm float and carb 1 to 19mm float height and the leaking stopped.
35 to 39mm carbs are 16mm pretty sure 28s are 19mm just put some gas line on the gas nozzle tube part and hold the carb in your hand, blow into the line, push the float up until it stops the air, it should stop when the float is parallel with the carb body or just a tad before. 6) rest the carb in a position that the float just touches the float needle valve, but does not compress the float needle valve spring. Now carb 3 leaks instead :icon_frow
Hey guys, you can support dirt n' iron by using our amazon affiliate linksthese are the products i use, like and recommend. If the float height is too large, bend the tab slightly out to decrease the height measurement. How do you adjust float height?