Zenoah G231PUM Owner's Service Manual page 7

● How to Start
a. Fill the fuel tank with the fuel.
b. Choke the carburetor and turn the propeller a few times until the fuel appears at the
carburetor.
c. Set the throttle valve at the idle position or at the position slightly open from the idle
position. Quickly flip the propeller in the counterclockwise direction according to the
procedure described above. Flip the propeller a few times.
d. When the first combustion noise is heard, open the choke.
e. Flip the propeller, then engine will start.
CAUTION
• Make sure that airplane is hold by helper or fixed by rope not to move by
propeller thrust.
• Be sure to wear a thick glove when flipping the propeller. Use all fingers,
except thumb, for the flipping operation.
B: ELECTRIC MOTOR START
Make sure to fix a spinner and make sure that the helpers hold the airplane firmly. Also
make sure that the electric motor has a power enough to run the engine at minimum
1,100 rpm.
● How to start
a. Fill the fuel tank with the fuel.
b. Choke the carburetor.
c. Set the throttle valve at idle position or at the position slightly open from the idle
position (Never open the throttle more than 1/4 of full throttle stroke).
d. Turn the engine by electric motor until first combustion noise is heard.
e. Open the choke and keep the throttle valve at slight open position from idle position.
f. Turn the engine by electric motor, then the engine will start.
CAUTION
• Too much run by electric motor at choke condition may have a chance to wet
spark plug.
In this case, change the spark plug or dry it thoroughly and remove fuel rest in
the cylinder by turning engine under full throttle, open choke and without
spark plug installing.
• When engine is warm, carburetor choking may not be necessary.
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