KAZZ 2.2ci, Instruction Manual

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4
▪ Use lock washer for the propeller bolt. Do not
use anti-loosen solutions.
▪ Due to change in spinner or propeller size,
you might have to change/adjust the length of
the propeller bolt.
7. Engine Start
▪ Secure safe spacing for engine start. Do not
start engine if there is no safe distance from
surroundings.
▪ When starting the engine, wear proper cloth -
ing, safety gloves, and safety goggle/glasses.
▪ Before starting the engine, make sure the
propeller and spinner bolts are stable.
▪ Make sure that the airframe is stable before
and after starting the engine on a RC aircraft.
▪ Besides the time you are starting the engine,
keep the ignition switch off.
8. Carburetor Adjustment
▪ The carburetor has a high-speed and low
-
speed needle valves and idling adjustment
screw.
▪ The carburetor is adjusted to the default
setting at the workshop before shipping.
However, you might need to readjust after
mo unting, due to propeller size, temperature,
air pressure, and humidity.
Default setting:
▪ The Carburetor adjustment should be done after
enough warm-up running of the engine.
▪ The air-fuel mixture condition will change
during flight and at static.
▪ After you adjust it on the ground, you have to
readjust during flight.
▪ Be careful that the adjustment of fuel needle
valve might be change when using a cowling.
NOTE: When installing the air funnel, using the
two screws of the carburetor, do not use both
lock washer and flat washer. Instead use thread
locker (Removable).
9. Break-In
About Break-In Break-in and adjustments are
almost same as the other regular gasoline
engines. I am mentioning the important points
below:
▪ To get used to this engine and to adjust quickly,
I recommend the break-in to be done on a test
bench for first several hours. Then go through
break-in on a flight.
▪ The recommended propeller size is the smallest
one mentioned in the propeller section.
▪ For the break-in, use normal low-octane gaso
-
line with two-cycle engine oil. The ratio is 30:1.
▪ The recommended oil for the mixture is mineral
oil.
▪ After starting the engine, set the fuel adjustment
to thicker and be careful about engine cooling
and rpm. 80% of the used propeller's maximum
rpm is the reference.
▪ Usually, about 5 gallon (20L) of gasoline is
needed to complete break-in.