Zenoah G380PU, G380PU-1 User Manual

OWNER’S MANUAL

2609-93112 (811)

November 2008

• Do not modify any parts of the engine.

• This engine is designed to be used to Radio
controlled products.

• In case any modification by customer,
ZENOAH shall not bear any responsibility from
the damage caused by such modification.

• Keep ignition system well maintained.

WARNING

● この製品はラジオコントロール
飛行機用に設計されています。

●改造、組み替えされて使用され
た場合当社は一切の責任を負い
ません。

● 特に電装品は常に点検、整備し
てご使用ください。

警 告

MODEL:

G380PU
G380PU-1

• This engine is designed for the model aircraft use.
ZENOAH assumes no responsibility for those engines that are modified or used for
any other applications.

• This Manual describes the engine part only. For its mounting to the aircraft and its
control, see instructions described in the manual of the aircraft.

• Check the propeller every time before starting the engine, and replace it with a new
one if it is damaged.

•When the propeller hits something in operation, immediately stop the engine and
check it.

• Check the flywheel, and replace it with a new one if it is damaged.

• Never modify the flywheel.

• Use the ZENOAH genuine parts for replacement.

• When the vibration is abnormal, stop the engine and check the entire unit for
possible damage or loose fasteners.

• Mixing the gas and 2-cycle engine oil and filling it up are to be done in a well­ventilated place.

• Never run the engine in a place of poor ventilation, as exhaust fumes contain
harmful carbon monoxide.

Mix unleaded gasoline and 2-stroke oil in the ratio of 25 ~ 40:1.

[ NOTE ]

1. Be sure to use a gasoline-resistant fuel piping. (Do not use any silicon rubber tube).

2. Never use any alcohol fuel or alcohol-added fuel, or the rubber part in the carburetor will
be damaged.

Starting Engine

1. Fill the fuel and fix to the aircraft body firmly.

2. Close the choke and set the throttle to one third open.

[ NOTE ]

If the choke is closed too much, it may dampen the spark
plug and it may cause starting failure.

3. Turn the propeller slowly counterclockwise until it is

resisted, and then powerfully. When turning it
manually,use all the fingers except the thumb.Turn it
at proper intervals.

3. Operation

2. Fuel

1. Safety Precautions

2

BLACK LEAD

KILL
SWITCH

ENGINE

BODY

EARTH

4. When engine first fires, open the choke and turn the propeller again in the same manner.

5. When the engine is started,warm it up for 2 to 3 minutes at low speed.

Stopping Engine

Ground the black wire from the source coil to the engine, and the engine will stop.

The carburetor comes with a standard setting.
This setting is for optimum performance under the barometric pressure and climactic
conditions at the factory.
Therefore, the carburetor should be readjusted wIth a load applied (with the propeller
mounted) after the engine having been warmed up.

[ NOTE ]

1. Adjustment standards :

2. IDLE SCREW - Turn clockwise to increase the idling rpm.

3. LOW SPEED NEEDLE - This needle controls fuel flow in the low rpm range.Turning
clockwise makes the fuel lean. Turning counterclockwise makes the fuel rich.

4. HIGH SPEED NEEDLE - This needle controls fuel flow in the high rpm range. Turning
clockwise makes the fuel lean and the reverse makes it rich. Set the needle 1/4 turns
open from a position where the peak rpm is obtained on the ground.

5. Do not overtighten the needles.

6. Warm up the engine before adjusting the carburetor.

7. Make sure to stop the engine while adjusting the carburetor.

4. Carburetor Adjustment

3

LOW SPEED NEEDLE : 1 ±1/4 turns open

HIGH SPEED NEEDLE : 1

1

/2 ±1/4 turns open