KAZZ 2.2ci, Instruction Manual

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▪ 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

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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

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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

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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.