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3

Introduction

Safety Instructions

Very Important

This manual describes the engine’s features and func-
tions. For specific information on mounting, see the
instruction manual included with the model airplane, heli-
copter or boat in which you intend to install the engine. 

This model engine will give you considerable pleasure,
satisfaction and performance if you strictly follow these
safety instructions and take heed of the warnings as to
the engine’s safe and proper use. This engine has more
than enough power to cause harm if misused or if the
safety precautions are not observed.

Always

1. Use genuine parts for replacement.

2. Check the propeller, rotor (helicopter) or screw
propeller (boat) prior to each time the engine is used.
If nicked, scratched, cracked or damaged in any way,
replace it with a new one.

3. Use the correct size and pitch of propeller for your
engine; refer to the propeller chart in this manual.

4. It is extremely important to balance the propeller
prior to installation of the engine. Failure to do so may
cause damage to the Zenoah engine and/or the airframe.
Securely tighten the propeller nut against the washer
and propeller.

5. Inspect the tightness of the propeller nut prior to
each flight.

6. Keep your face and body away from the path of the
propeller blades when starting or running your engine.

7. Use a thickly padded glove when hand starting
the engine.

8. Make all carburetor adjustments from behind
the propeller.

9. To stop the engine, the black lead wire from the
coil should be grounded to the engine body, or use the
throttle linkage to shut off the air by closing the throttle
valve completely.

DO NOT USE HANDS, FINGERS OR ANY OTHER PART
OF THE BODY TO STOP THE PROPELLER.  DO NOT
THROW ANY OBJECT INTO A PROPELLER TO STOP IT!

10. Ensure that all spectators, especially children, are at
least 20 feet away when you start running the engine.

11. Make sure your fuel is kept in a safe place well away
from sparks, heat or anything that could ignite the fuel.

Recommendations

1. Use safety glasses or goggles when starting and
running your engine.

2. Do not run the engine in the vicinity of loose gravel
or sand. The propeller may throw such materials into
your eyes. The engine could also ingest these harmful
materials.

3. Avoid loose clothing when operating your model
engine, as it could become entangled in the propeller,
creating the possibility of bodily harm. All loose objects
(screwdrivers, pencils, nickel cadmium glow drivers,
etc.) should be removed from your pockets so that they
do not fall into the propeller.

Congratulations on purchasing a Zenoah

®

engine. Cared

for properly, these high-quality, finely crafted engines will
offer many years of reliability.

This instruction manual has been developed to ensure
optimum performance from the Zenoah engine you have
purchased. It’s important that the instructions are read
thoroughly prior to mounting and running the engine.

FAILURE TO READ AND FOLLOW THESE INSTRUCTIONS BEFORE YOU PROCEED MAY RESULT IN ENGINE
DAMAGE AND THE VOIDING OF YOUR WARRANTY!

Summary of Contents for AIR G26

Page 1: ...ENGINE INSTRUCTION MANUAL G26 Air G26 231Marine G26 G231 Heli G38 G62 GT80 Twin G45 1 1 2 3 4 5 6 7 2 3 4 5 6 7...

Page 2: ...ing the Engine 6 Carburetor Adjustment 6 Engine Care and Maintenance 7 Recommendations 7 Servicing the Engine 7 Disassembly 7 Assembly 8 Charts 9 Troubleshooting Guide for Gasoline Engines 11 Propelle...

Page 3: ...ents from behind the propeller 9 To stop the engine the black lead wire from the coil should be grounded to the engine body or use the throttle linkage to shut off the air by closing the throttle valv...

Page 4: ...05 Fieldstone Road Champaign IL 61822 Phone 217 355 9511 Engine Parts Identification It s important to be able to identify the parts of your Zenoah engines Attached you will find an exploded view of Z...

Page 5: ...and the output power increases gradually as the engine breaks in Starting the Engine Aircraft Before attempting to start the engine be sure to read through all the steps for starting the engine as out...

Page 6: ...e choke set the throttle valve at the idle position or at the position slightly open from the idle position and quickly pull the starter cord a few more times until the engine starts 6 For helicopter...

Page 7: ...in order to keep oil in the bearings Servicing the Engine Required Tools Regular screwdriver Phillips screwdriver Hexagonal wrench 4mm 5 32 Open wrench 19mm 3 4 Plastic hammer Thickness gauge Tapered...

Page 8: ...ntion to its direction 7 Wipe the contact surfaces of the cylinder block and crankcase and apply liquid gasket Permatex or equivalent 8 Put the piston in the cylinder with the piston s arrow facing in...

Page 9: ...ner Starting Ignition Spark Plug Idle Speed Max Power Min Torque Fuel Consumption Weight Unit mm cm3 Type Walbro Venturi mm Type BTDC rpm STD Option rpm rpm rpm cc kg G260PUM Water Cooled A A A WT 644...

Page 10: ...uge Remarks At the skirt end and the right angle to the piston pin When inserted in a new cylinder Standard 34 33 97 1 01 8 01 0 03 0 05 0 02 0 04 0 05 0 25 0 98 8 11 12 Standard 32 31 97 1 01 8 01 0...

Page 11: ...b The engine stops by itself It suddenly stops The crankshaft does not rotate or is abnormally heavy The crankshaft rotates Out of fuel Not out of fuel The carburetor has not beeen properly adjusted...

Page 12: ...for initial setup of your Zenoah engine Remember it s imperative to balance each propeller prior to installation onto your Zenoah engine Failure to do so may cause unwanted vibration in your aircraft...

Page 13: ...2 000 10 000 2 000 10 000 1800 10 000 BIS07123 BIS07138 BIS07145 BIS07163 BIS07445 6 Length Width Height Operating RPM Optional Mufflers OUTSIDE DIMENSIONS MM G26A M H G231M H G38 G45 G62 GT80 w sprin...

Page 14: ...2 8 T2075 13120 ZEN23108 GASKET CYLINDER 1 1 1 1 1 9 3310 12281 ZEN2309 BOLT M5X20 6 6 6 6 6 10 T2075 13150 ZEN23110 GASKET INSULATOR 1 1 1 1 1 11 1148 13162 ZEN23111 INSULATOR 1 1 1 1 1 12 T2075 141...

Page 15: ...22 ZEN6241 SCREW M4 x 22 2 2 2 2 2 41 0263 30414 ZEN2341 SCREW M4 x 14 2 2 2 2 2 42 T2075 72210 ZEN2638 PLUG CAP 1 1 1 1 1 43 1400 72121 ZEN6239 SPRING 1 1 1 1 1 44 2629 71311 ZEN6237 COIL 1 1 1 1 1 4...

Page 16: ...ZEN3827 ZEN3828 ZEN3829 ZEN3830 ZEN3831 ZEN3832 ZEN3833 ZEN3834 ZEN3835 ZEN3836 Q ty unit 2 2 1 1 2 1 1 1 1 1 1 1 1 2 1 2 Index No Part No Description 37 38 39 40 41 42 43 44 1 44 2 45 46 47 ZEN3837...

Page 17: ...ZEN4525 ZEN6223 ZEN6224 ZEN4528 ZEN4529 ZEN6228 ZEN6227 ZEN6229 ZEN6230 ZEN6232 ZEN6233 ZEN6234 ZEN6257 ZEN6235 ZEN6236 BOLT PIPE PISTON PISTON RING PISTON PIN PIN RETAINER CONROD BEARING WASHER CRAN...

Page 18: ...32 ZEN6233 ZEN6234 ZEN6235 ZEN6236 ZEN6237 ZEN6238 PISTON RING PISTON PIN PIN RETAINER NEEDLE BEARING CONNECTING ROD SPACER CRANKSHAFT COMP KEY SHIM FLYWHEEL NUT HUB PROPELLER COMP FOR G620PU 1 PIN FO...

Page 19: ...239 ZEN6242 ZEN44537 ZEN44538 ZEN44539 ZEN44540 ZEN6209 ZEN44542 PISTON PIN PIN RETAINER BEARING THRUST WASHER CRANKSHAFT COMP SHIM KEY NUT ROTOR SOURCE COIL IGNITION COIL CORD PLUG CAP BLACK CAP SPRI...

Page 20: ...inside a sturdy shipping box 1 Include complete name and address information inside the carton as well as clearly writing it on the outer label return address area 2 Include a note containing a brief...

Page 21: ...r ________________________________________________________________________ Purchased From ______________________________________________________________________________ Dealer s Name _________________...

Page 22: ...22...

Page 23: ...23...

Page 24: ...Copyright 2003 Horizon Hobby Inc www horizonhobby com ZZPZ200 6135...

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