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• 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. November 2008...
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1. Safety Precautions • 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.
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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. 4.
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5. Daily Inspection • Check if screws and bolts are firmly tightened. • Check if there is any fuel leakage. • Check if there is any damage (crack or deformation). • Check if the fuel line is clogged. • Check if the spark plug and the muffler are contaminated. Table of Tightening Torque Applicable positions Illustration...
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6. Specifications Model ............G380PU · G380PU-1 Type ............Single cylinder gasoline engine, 2-stroke air cooled Displacement..........37.4cc (2.28cu. in.) Bore x Stroke..........38mm x 33mm (1.496 in. x 1.299 in.) Compression ratio ........6.8 : 1 Fuel............Gasoline mix (mixture ratio gasoline to 2-stroke oil : 25 ~ 40 : 1) Carburetor ..........WALBRO WT338 Ignition .............Flywheel magneto (contact-less type) Spark plug ..........CHAMPION RCJ7Y...
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G380PU, G380PU-1 Q' ty Q' ty Index Index Parts No. Description Parts No. Description /unit /unit 2630-81120 • Cover 3378-12111 Cylinder 3310-81130 • Screw 3330-14111 Insulator 3304-81140 • Gasket 3330-14121 Gasket 1172-81150 • Diaphragm 0260-20520 Screw 3356-81310 • Valve 3330-14132 Gasket 2850-81290 •...
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8. Warranty ● Scope of Application This warranty applies only to the engines and parts manufactured by ZENOAH and sold directly or through distributors. ● Limit of Warranty This warranty shall apply only to trouble resulting from material defects and inferior assemblies that ZENOAH acknowledges.
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