Instruction/ maintenance manual of the product G270RC Zenoah
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OWNER'S MANUAL Thank you for using ZENOAH ENGINE. ● Please read this Owner’s Manual thoroughly before operating and use the engine correctly according to this Owner’s Manual. (For safety reasons, please contact your sales dealer before operating this engine if there is something that you do not understand.
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3 SPECIFICATIONS.....................................................4 SAFETY PRECAUTIONS..........................................5 FUEL .........................................................................7 ENGINE STARTING.......................
4 SPECIFICA TIONS Engine Type G240RC G270RC Overall Size (L x W x H) 166 x 205 x 196mm Weight 2.07kg Displacement 22.5cm 3 25.4cm 3 Clutch Engagement 6000rpm (STD Spring) Carburetor Type WT-813A Spark Plug NGK CMR7H Spark Plug Gap 0.
5 SAFETY PRECAUTIONS ● These safety precautions are to prevent you and those people in the vicinity from incurring harm or damage. Make sure to observe these precautions and constantly strive to ensure safety. ● Safe use of the engine is your personal obligation and responsibility.
6 SAFETY PRECAUTIONS overly long sleeves, neckties and the like. Failure to do so could result in injury. • When mounting the engine to a model, make sure to follow the model’s operating manual. If necessary, reinforce the engine mounting unit and the peripheral parts.
7 FUEL • Mix gasoline (octane over 95) and high grade 2 cycle engine oil (mixing use type; F3C grade or ISO EGC grade) at mixing ratio 25~40:1. • The mixing ratio is according to the oil recommendation. [ NOTE ] 1) Never use any alcohol fuel or alcohol added fuel, or the rubber parts in the carburetor and engine will be damaged.
8 ENGINE ST ARTING • Push the primer pump several times until overflown fuel flows out. (Fig.1) • Close the choke lever, and move the throttle lever 1/4~1/3 open position. (Fig.1)(Fig.2) • Pull the starter(knob) quickly until first firing noise.
9 OPERA TION • This engine is already tuned up to get high power and high speed, and needs correct maintenance to keep such high performance. • The details for operation may be described in the separate owners manual to be issued by car manufacturer.
10 MAINTENANCE 1) MAINTENANCE CHART Before Every Every Items Action Use 25 hours 100 hours Note Leakage, Check ✔ Damage/Crack Idling Speed Check/Adjust ✔✔✔ Air-cleaner Check/Cleaning ✔✔ Re.
11 MAINTENANCE 2) SPECIFICATIONS AND TECHNICAL DATA Items Unit G240RC G270RC Remarks Bore x Stroke mm 32 x 28 34 x 28 Displacement cm 3 22.5 25.4 Effective Compression Ratio 8.
12 MAINTENANCE 3) MAINTENANCE SPECIFICATIONS G240RC G270RC Items Standard Limit Standard Limit Measuring Device Remarks Bore (mm) ø32 Plating damaged ø34 Plating damaged Eye Checking Diameter (mm) ø31.97 ø31.87 ø33.97 ø33.87 Micro Meter Piston Ring 0.
13 MAINTENANCE 4) CARBURETOR Items Standard Limit Measuring Device Remarks Metering Lever set (mm) 1.65 ± 0.16 Vanier Inlet Valve Opening Pressure (kg/cm 2 ) 1.3~2.3 Leak Tester Inlet Valve Closing Pressure (kg/cm 2 ) 0.7~1.7 Leak Tester 5) IGNITION SYSTEM Items Standard Limit Measuring Device Remarks Spark Plug Air Gap (mm) 0.
14 MAINTENANCE 6) TIGHTENING TORQUE Items Screw Size Standard (N·m) Limit (N·m) Remarks Carburetor M5 (P=0.8) 3.4 2.9~3.9 Insulator M5 (P=0.8) 4.4 3.9~4.9 with Locktight glue Clutch M6 (P=1.0) 6.4 4.9~7.8 Rotor M8 (P=1.0) 12.7 9.8~14.7 Cylinder M5 (P=0.
15 SPECIAL TOOLS Part Name Part No. External Appearance Usage 1 Puller Assy 2890-96100 To remove rotor. 2 Piston Stopper 4810-96220 3 Rod Assy 1101-96220 To remove/install piston pin. 4 Air Gap Gauge 3330-97310 To set ignition coil. 5 Hex Wrench 3304-97611 6 Snap Ring Pliers 5500-96110 To remove snap ring.
16 SERVICE GUIDE 1) REMOVING CLUTCH SHOE 1. Remove the housing and plug cap. 2. Remove the spark plug and fit the stopper(4810- 96220) into the plug hole. 3. Remove clutch bolts(14mm Hex.). 2) REMOVING ROTOR (FAN) 4. Remove the rotor nut(12mm Hex.). 5.
17 SERVICE GUIDE 3) ASSEMBLING ROTOR Insert the gauge(3330-97310) in between the rotor magnet metal and the coil.Tighten screws while pressing the coil against the rotor. Air Gap 0.3 ~ 0.4mm 4) REMOVING PISTON PIN 1. Remove snap rings from both sides of the piston pin.
18 SERVICE GUIDE 5) INSTALLING PISTON 1. Make sure to point the arrow mark on the piston to the exhaust side. 2. Fit the circlip in the groove so as to face the end gap below. Deformed circlip may come off during engine operation and damage the engine.
19 TROUBLE SHOOTING 1) ENGINE DOES NOT START Description Cause Countermeasure No spark in the spark plug Spark Plug 1. Wet spark plug electrodes Make them dry 2. Carbon deposited on the electrodes Cleaning 3. Insulation failure by insulator damage Exchange 4.
20 TROUBLE SHOOTING 2) LACK OF POWER OR UNSTABLE RUNNING Description Cause Countermeasure Compression is normal 1. Air penetration from fuel pipe joints, etc Secure connection and no misfire 2. Air penetration from intake tube joint or Change gasket or tightening screws carburetor joint 3.
21 PA R TS LIST.
22 P ARTS LIST G240RC (X374323111).
23 G240RC (X374323111).
24 KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT 35 1140-21162 CASE, CLUTCH 1 36 3350-15250 BOLT 4 M5x16L 37 1140-55310 PLATE 1 38 0224-3061.
25 KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT 104 848ER883C0 • VALVE 1 105 1918-82160 • WASHER 1 107 T2070-31111 COVER, FAN 1 108 3310-12281 BOLT 4 M5x20L 109 848ER83111 COVER-A 1 110 1850-32160 SCREW 1 M4x12L 111 1900-31410 SCREW 2 TP4.
26 P ARTS LIST G270RC (X374326111).
27 G270RC (X374326111).
28 KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT 35 1140-21162 CASE, CLUTCH 1 36 3350-15250 BOLT 4 M5x16L 37 1140-55310 PLATE 1 38 0224-3061.
29 KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT KEY# PART NUMBER DESCRIPTION REMARKS Q'TY/ UNIT 104 848ER883C0 • VALVE 1 105 1918-82160 • WASHER 1 107 T2070-31111 COVER, FAN 1 108 3310-12281 BOLT 4 M5x20L 109 T2070-32100 COVER-A 1 110 1850-32160 SCREW 1 M4x12L 111 1900-31410 SCREW 2 TP4.
30 W ARRANTY WARRANTY TERMS 1) Scope of Application This engine manufactured by Husqvarna Zenoah Co., Ltd. (herein after “Zenoah”). And sold to the user directly or through distributor/manufacturer, shall entitle to be covered by this warranty. 2) Limits of Warranty Zenoah warrants that; 1.
31 W ARRANTY 4) Term of Warranty Three (3) months after purchased by end- user subject to 12 months from produced month. 5) Exempt from Warranty Zenoah shall not warrant this engine even if the fault has been caused during the period of terms of Warranty, in case that.
Head Office : 1-9 Minamidai, Kawagoe-city, Saitama, 350-1165 Japan Phone: (+81)49-243-1115 Fax: (+81)49-243-7197.
An important point after buying a device Zenoah G270RC (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Zenoah G270RC yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Zenoah G270RC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Zenoah G270RC you will learn all the available features of the product, as well as information on its operation. The information that you get Zenoah G270RC will certainly help you make a decision on the purchase.
If you already are a holder of Zenoah G270RC, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Zenoah G270RC.
However, one of the most important roles played by the user manual is to help in solving problems with Zenoah G270RC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Zenoah G270RC along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
