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Carburetor float height adjustment

  • Thread starter Thread starter Guest
  • Start date Start date
Connect tube to drain plug; hold tube up the side of the carb, start engine, the tube will show the actual fuel level in the carb.

Dink
 
Thanks Dink! That gives a little more clarity. So yyou let a little gas run into the tube when you want to check it. The gas level is held to the side of carb and should line up just under the float bowl edge?

Does the small hole in the current drain plug get messed up when drilling the new hole for the tube (I assume so)? Does it matter? How do you plug the hole when your through test?

I'm really learning something here!
 
float level

float level

salmonte I know you're in a conversation but please let me interject my method of fuel level checking.
The drain hole in the bottom of the bowl has two trenches to drain the fuel without completely removing the drain screw. I have some old gummy permatex gasket sealer in a tube that I use to fill these trenches and then I simply screw a piece of vinil tubing into the drain hole. The permatex prevents the gas from leaking around the tube. I only use one bowl and check one float at a time. To block off the three that I am not checking I use a 1' piece of tubing between the float hinge and the tang that keeps the float from bottoming out. After you set the floats with the caliper or whatever you use, check each float separately and keep making little adjustments until the level is correct. Then Block the float up and move on to the next carb. I made a bracket to hold the rack of carbs in my vice keep things steady. It is helpful if your alternate fuel tank has a valve that can be turned off while you drain the bowl.
This is a lot less trouble for me than drilling the drain screws.
 
drain plugs

drain plugs

I had altered an old brake bleeder. Rethreaded the back side to the same size as the carb drain plug. Get a goodsize washer of the same size.

Take the drain plug off. Put the washer and the modified breeder. Should fir tight with the figures and and then tighten with a spanner but 1/8th of a turn. fit a clear tube.

let me know if anyone needs any pictures for the same.
 
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