Cessna 150 - Page 22

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NOTE
Use
heavy strokes of primer foi' best atomization of fuel.
After priming, push primer all the way in and turn to locked
position lo avoid possibility of engine drawing fuel through
the primer.
(4i Turn ignition switch to "BOTH."
(5} Open throttle 1/4" and engage starter.
Without Preheat:
(1) Prime the engine eight to ten strokes while the propeller
is being turned by hand with thruttle closed. Leave primer
charged and ready for stroke.
(2) Clear propeller.
(3) Pull master switch "ON."
(4) Turn ignition switch to "BOTH."
(5) Pump throttle rapidly to full open twice. Return to 1/4"
opt:m position.
(6) Engage starter and continue to prime engine until it is run-
ning smoothly, or alternately, pump throttle rapidly over first
1/4 of total travel.
(7) Pull carburetor air heat knob full on after engine has started.
Leave on until engine is running smoothly.
(8) Lock primer.
NOTE
If lhe engine does not start during the first few attempts,
or if engine firing diminishes in strength, it is probable
that the spark plugs have been frosted over. Preheat
must be used before another start is attempted.
NOTE
Pumping the throttle may cause raw fuel to accumulate
in the intake air duct, creating a fire hazard in the event
of a backfire. If this occurs, maintain a cranking action
to suck flames into the engine. An outside attendant with
a
fire extinguisher is advised for cold starts without pre-
'--...-/ I
heat. ~
During cold weather operati o ns, no indication will be apparent on the
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