<VV> Re: YH Float level

[GYoungwolf at aol.com]

The usual float setting for the YH Carb is around 5/8" with the 
cover inverted and measured between the cover and lower center 
of the float. Having it as low as you mention would certainly not 
make it overflow, but could let it run out of gas or cock the needle,
causing it to stick open. The float drop is  less critical, but a 1/4" 
drop should be sufficient. The overflow is more likely a stuck needle 
due to the severe settings. You can also impart a "crookedness" 
to the needle if the small tang that contacts it is more than a little 
from closing with the rest of the float support tang. Hope this helps,
The Carbmeister

<<I smelled gas today while I had the engine lid open on my '64
Spyder. This was just after running it to adjust ignition timing.
Found gas seeping  from the center venturi in the carb on the
Carter YH carb used on the turbo engines. I'm assuming that means
high float level. I checked level adjustment, was 1 3/8" from top
cover gasket surface to center seam of float. I lowered the level
adjustment about 3/32" to about 1 15/32" - 1 1/2". Float drop 
adjustment from top cover gasket surface was about 1 3/4" to 
center seam of float, or 2 3/8" to bottom corner of float.
Amount of travel between float level and float drop is about 1/4".>>