KAZZ 2.2ci User manual

January 1, 2014 Revised
TWO-CYCLE GAS ENGINE
KAZZ 2.2ci
Instruction Manual

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I takerepair of my products (except carburetor and ignition system) with no
labor charge forever. is warranty includes minor and crash repair.
*e cost of replacement parts and shipping are by the customer's expense.
Kazz A. Brooks
LIFETIME WARRANTY
Kazz Brooks Workshop

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▪ Please use my products under your own responsibility. I will not take any responsibility
over any loss, accidents, or injury caused by my products.
▪ My products are not toys. These are not designed for children. Keep children away
from the engine and its accessories. Misuse of my product might cause serious acci-
dents or injuries. Please use my product after reading the instruction manual and under-
standing well.
▪ You should obtain Liability Coverage for the Operation of Model Aircraft before using
my product on a RC aircraft. Also I strongly recommend that you join a radio control
club and follow their instructions.
▪ My products are made only for RC aircraft and its users, who are well experienced with
RC aircraft and Gasoline Engine. Large scaled RC aircrafts are very dangerous. Please
operate if more than two people when you use my product on the RC Aircraft. Do not
start the engine by oneself.
▪ My Products are “home-made,” and is for people who have well experience and knowl-
edge of RC aircraft. I will offer repairing and parts supply as much as I can, but I can
provide only supports as an individual, not like other large companies, so please be
forewarned.
▪ You can be able to use my products if you are in agreement with the statements above.
WARNING

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Page
Engine Spec . . . . . . . . . . . . . . . . 1
1. Safety Precaution . . . . . . . . . . . . . . 2
2. Engine Mounting . . . . . . . . . . . . . . 2
3. Installing Muffler . . . . . . . . . . . . . . . . 3
4. Ignition System . . . . . . . . . . . . . . . . 3
5. Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6. Propeller . . . . . . . . . . . . . . . . . . . . 3
7. Engine Start . . . . . . . . . . . . . . . . . . 4
8. Carburetor Adjustment . . . . . . . . . . . . 4
9. Break-In . . . . . . . . . . . . . . . . . . . . . . 4
10. Maintenance . . . . . . . . . . . . . . . . . . . 5
Kazz Brooks Workshop
(FAX) 1-760-513-9971
(E-mail) [email protected]
(Online) www.BrooksEngine.com
Brooks Engine Corp.
P.O. Box 1060, Lucerne Valley
California 92356, U.S.A
Table of Contents
Contact Information

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2 Cycle Crankcase Lead Valve
Rear Exhaust
Rear Carburetor
Carburetor With Fuel Pump
Venturi Dia 0.53" (13.5mm)
Height 5.4" (137mm)
Width 3.25" (83mm)
Length 7.0" (178mm)
Weight 2.8 lb (Approx.1300g)
Displacement 2.2ci (36cc)
Bore 1.5" (38mm)
Stroke 1.26" (32mm)
Fuel Mixed Gas 30:1 to 50:1
Plug CM-6
Ignition CDI
Use Prop Size 18x6, 18x8, 18x10, &20x6
Practical RPM 1300-7500
(January, 2014)
Kazz 2.2ci
Engine Spec

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1. Safety Precaution
▪ Avoid indoor use at all times. Use the engine
outside where enough space. Check and
remove all things that might fly by wind or
get caught in the propeller, such as sand,
dust, rope, electric wire, etc.
▪ It is very dangerous if the moving propeller
catches hair, clothes, accessories, and etc.
Use full caution about your clothing.
▪ Always wear safety glasses when working
near the engine. Also wear safety gloves
when controlling or adjusting the engine.
▪ Before starting the engine, check if the
mounting bolts are stable.
▪ Stabilize the airframe to start and adjusting
the engine.
▪ To start engine, use an engine-starter with
enough power.
▪ Keep away from the propeller when the
engine is running. Do not standing in front or
the sides of the propeller, and always control
the engine from the rear. Anyone besides the
engine operator must stay 30 feet (10 meter)
away from the engine.
▪ To stop the engine anytime, have a kill-
switch set ready.
▪ Always make the engine adjustment after the
engine has stopped completely.
▪ Use the proper sized propeller which does not
have any damage and never repaired in the
past.
▪ Use the specified propeller-bolt and do not let
the spinner come in contact with the propel-
ler. Check if the propeller-bolt is secure
before the flight.
▪ Refuel only when the engine is cooled down
well.
▪ Gasoline is flammable and might catch fire. Be
cautions about static electricity and be careful
when handling or storage gasoline.
▪ The ignition system produces high voltage and is
very dangerous.
▪ Do not touch when the engine is running.
2. Engine Mounting
▪ Use #10 or M5 steel bolt to mount the engine
onto the firewall or the engine-mount.
▪ Take measure to prevent loosening of mount-
bolts of the engine, and check often the bolts are
secure.
▪ The firewall needs enough strength and flatness.
If the firewall does not have enough flatness, the
engine-mount and crankcase become stressed
and resulting in engine trouble.
▪ When use the cowling, leave an appropriate
space between the engine and muffler and secure
enough air coolant.
▪ To prevent the obstruction of air intaking, the
carburetor requires at least 1" space around the
intake.
Linkage I recommend using ball-link for the
throttle arm linkage. Usually, control of the
choke bulb is done by manually or servo. To con-
trol manually, lead the choke arm linkage to the
outside of the aircraft to control safety.
Tubing Always use appropriate gasoline tube
for the fuel transporting to the carburetor. I
recommend using filter on the tube between fuel
tank and the carburetor.

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NOTE: See the last page for the engine mount
bolt hole dimentions.
3. Installing Muffler
▪ Open the cover of the standard muffler and
install the muffler using two screws from the
inside. Make sure you use both a flat washer
and a lock washer for each screw.
▪ Use of silicone sealant when installing the
cover back on is recommended to prevent oil
leaks and muffler cleanse.
4. Ignition System
▪ This engine includes electric ignition timing
sensor, but does not include the ignition and
the ignition plug.
▪ The timing sensor and connector are opti-
mized for CH-Ignition and the major
company’s similar CDI ignition system.
▪ Use NGK CM-6 for the spark plug for igni-
tion. The plug cap is 0.018" to 0.020" (0.45 to
0.50mm).
▪ Before shipping, the default setting of the
ignition timing is 28° to 30° before TDC. If
you are using the assigned ignition system,
then you do not need to re-adjust the ignition
timing.
▪ For more information, please read the
instruction manual of the ignition system you
are using.
5. Fuel
▪ Use only low-octane gasoline for this engine.
The regular-gasoline (87 octane) from any gaso-
line station is appropriate. Do not use any other
types of fuel.
▪ Use high-quality two-cycle engine oil. Chemical
synthesis oil is recommended.
▪ The ratio of the fuel and oil is between 30:1 and
50:1. Mix well only the amount you will use.
▪ Do not use old or water-laced gasoline.
6. Propeller
▪ The recommended propeller size is 2 blades,
18x6, 18x8, 8x10, 20x6, or 20x8.
▪ Do not use propeller if it is damaged, repaired, or
has hit the ground in the past.
▪ Check the balance and adjust propeller before
using. Follow the propeller company's instruc-
tion manual for the adjusting information.
▪ Always check the conditions of propeller,
propeller-bolt, and the spinner before the flight.
▪ The pitch circle diameter of the propeller mount-
ing hole is 1" (25.4mm), and the bolt's hole size
is 11/64" (4.4mm). (See Fig. 6-1)
Figure 6-1.

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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-
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.

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Running After Break-In:
▪ Use higher quality chemical synthesis oil for
the fuel mixture after break-in.
▪ The usable ratio of fuel and oil mixture is
30:1 to 50:1. However, sudden changes in the
mixture ratio causes of engine trouble. The
adjustment of the mixing fuel should be done
in a small amount at a time while checking
the engine condition.
▪ There is a close relationship between fuel
adjustment and engine’s coolant. Keep the
concentration of oil and fuel adjustment
higher as possible.
10. Maintenance
Have a periodically check and maintenance:
▪ Ignition plug cap and cable
▪ Lead valve (Lead valve is expendable. If you
find damage or malfunction then please
replace.)
▪ Stableness of the engine bolts
▪ Crack or damage in fuel tubes

I takerepair of my products (except carburetor and ignition system) with no
labor charge forever. is warranty includes minor and crash repair.