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when startin{~ the engine. The choke valve is of a =semi=automatic<br />
s type, having a poppet valve incorporated in its design, which<br />
is controlled by a spring. The poppet valve opens automatically<br />
when the engine starts and admits air to avoid over-choking or<br />
flooding of the engine. The mixture required for starting is considerably<br />
richer than that needed to develop power at normal<br />
temperatures. As the engine fires and speed and suction are increased,<br />
the mixture ratio must be rapidly reduced. This change<br />
is accomplished through adjustment of the choke valve and the<br />
automatic opening of the poppet valve to admit more air when the<br />
engine fires.<br />
FLOAT SETTING, Fig. 5<br />
If float position is not to the dimension shown, use a long nose<br />
pliers and bend lever close to float body, to obtain correct float<br />
setting.<br />
1-5/32" + 1/32"<br />
L_<br />
~<br />
MOVE GASKET AWAY FROM<br />
CONTACTS HEAD OF PiN<br />
WITHOUT .PRESSURE.<br />
GASKET<br />
FUEL LEVEL<br />
The liquid level in float chamber is 17/32 to 19/32 inch below<br />
top of float bowl. This level was established with a #35 fuel<br />
valve seat at 1½ p.s.i, and a sight tube approximately 1/4 to<br />
9/32 inch i.d.<br />
37