Cessna 172 - Page 33

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Cold weather starting procedures are as follows:
With
Preheat:
(1) With ignition switch OFF and throttle closed, prime the engine
four to eight strokes as the propeller is being· turned over by hand.
NOTE
Use heavy
strokes of primer for best atomization of fuel.
After priming, · push
primer all the way in and turn to
- locked position to avoid possibility of engine drawing fuel
through the
primer.
(2) Propeller Area -- CLEAR.
(3)
Master Switch -- ON .
. (4) Mixture
-- FULL RICH.
{5) 'Throttle
-- OPEN 1/8'
1
•
(6) Ignition Switch -- START.
(7) Releas_e ignition switch to
BarH when engine starts.
(8) Oil Pressure -- CHECK.
• - • ~ • i - •'l ..
Without Preheat:
(1) Prime the engine .. ~ix . t.o te~ strokes ~hil~ tl~e propeller
is being-hirned by hand with throttle closed. Leave primer
charged and ready for stroke.
(2) Propeller Area -- CLEAR.
(3) Master Switch -- ON.
(4) Mixture -- FULL RICH.
(
5) Ignition Switch - - ST ART.
(6) Pump throttle rapidly to full open twice. Return to 1/8"
open position. ·
(7) Release ignition switch to BOTH when ·engine starts.
( 8) Continue to prime engine until it is running smoothly, or
alt.ernately pump thro~tle rapidly over first 1/ 4 to total travel.
(9) Oil
Pressure -- CHECK. ·
(10) Pull carburetor heat knob full on after engine has started.
Leave on until engine
is running smoothly.
(11) Lock Primer.
NOTE
If the engine does not start during the first few attempts, or
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