Posted by pete 23 on November 21, 2010 at 19:50:27 from (184.12.34.48):
In Reply to: M carb float issues posted by Dick Binfield on November 21, 2010 at 18:03:46:
Adjusting the double float on that carb can add up to several different bends in the correct places. You want a minimum of clearance on the pin but it has to be perfectly free. No excess side clearance between float and hanger and then you have to get both sides of float equal height and breath. I did a ton of those carb over the years as the float is same from M up to 856 gas. I became so frustrated that I took an old carburetor and cut the bottom off for a gauge. This , when temporarily mounted to upper half will confirm if you have clearance on all sides of the float to lift and drop. I have also soldered a few leakers. What I find most of the time is people don't pay enough attention to the pivot area for loosness and getting the correct spread on the dual floats. The needle valve is another story all by itself. I find the seats are oblong in most and therefore coin them with an old inj nozzle pintle that has same angle as needle. Of course, even with all that, just a speck of crud coming down the fuel line can get under that needle and cause it to leak. Just some food for thought.
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