Honda GX120 Owner's Manual

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11/07/04 17:14:33 32Z4M600_001
INTRODUCTION
Thank you for purchasing a Honda engine. We want to help you to
get the best results from your new engine and to operate it safely.
This manual contains information on how to do that; please read it
carefully before operating the engine. If a problem should arise, or
if you have any questions about your engine, consult an
authorized Honda servicing dealer.
All information in this publication is based on the latest product
information available at the time of printing. Honda Motor Co., Ltd.
reserves the right to make changes at any time without notice and
without incurring any obligation. No part of this publication may
be reproduced without written permission.
This manual should be considered a permanent part of the engine
and should remain with the engine if resold.
Review the instructions provided with the equipment powered by
this engine for any additional information regarding engine
startup, shutdown, operation, adjustments or any special
maintenance instructions.
United States, Puerto Rico, and U.S. Virgin Islands:
We suggest you read the warranty policy to fully understand its
coverage and your responsibilities of ownership. The warranty
policy is a separate document that should have been given to you
by your dealer.

SAFETY MESSAGES

Your safety and the safety of others are very important. We have
provided important safety messages in this manual and on the
engine. Please read these messages carefully.
A safety message alerts you to potential hazards that could hurt
you or others. Each safety message is preceded by a safety alert
symbol
and one of three words, DANGER, WARNING, or
CAUTION.
These signal words mean:
Each message tells you what the hazard is, what can happen, and
what you can do to avoid or reduce injury.
DAMAGE PREVENTION MESSAGES
You will also see other important messages that are preceded by
the word NOTICE.
This word means:
Your engine or other property can be damaged if you
don't follow instructions.
The purpose of these messages is to help prevent damage to your
engine, other property, or the environment.
2011 Honda Motor Co., Ltd.
37Z4M600
00X37-Z4M-6001
You WILL be KILLED or SERIOUSLY
HURT if you don't follow instructions.
You CAN be KILLED or SERIOUSLY
HURT if you don't follow instructions.
You CAN be HURT if you don't follow
instructions.
All Rights Reserved
GX120UT2·GX160UT2·GX200UT2
·GX120RT2·GX160RT2·GX200RT2
OWNER'S MANUAL
MANUEL DE L'UTILISATEUR
MANUAL DEL PROPIETARIO
GX120 · GX160 · GX200
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects
or other reproductive harm.
CONTENTS
INTRODUCTION
.......................
SAFETY MESSAGES
................
..........
COMPONENT & CONTROL
..............................
................................
BEFORE OPERATION
....................................
..............................
SAFE OPERATING
PRECAUTIONS
.....................
......
......
.....
.....
MAINTENANCE
....................
......
.......
MAINTENANCE
SCHEDULE
............................
REFUELING
...........................
ENGINE OIL
...........................
............
Oil Level Check
..................
Oil Change
.........................
REDUCTION CASE OIL
.........
............
Oil Level Check
..................
Oil Change
.......................
AIR CLEANER
......................
Inspection
........................
Cleaning
..........................
ENGLISH
.1
SEDIMENT CUP
..................
.1
SPARK PLUG
......................
.2
SPARK ARRESTER
.............
...
IDLE SPEED
.........................
HELPFUL TIPS &
.3
SUGGESTIONS
......................
.3
STORING YOUR ENGINE .13
TRANSPORTING
................
.4
TAKING CARE OF
.4
UNEXPECTED PROBLEMS
....
FUSE REPLACEMENT
........
.4
TECHNICAL INFORMATION .16
.4
Serial Number Location
.....
.6
Battery Connections for
.6
Electric Starter
....................
.7
Remote Control Linkage
.....
Carburetor Modifications for
.7
High Altitude Operation
.....
.7
Emission Control System
.7
Information
.........................
..............................
.7
Specifications
.....................
.8
Tuneup Specifications
........
.8
Quick Reference
.8
Information
.........................
.9
Wiring Diagrams
................
.9
CONSUMER INFORMATION .20
.9
.9
Dealer Locator
.9
Information
.........................
.10
Customer Service
.10
Information
.........................
.10
.11
.12
.12
.13
.13
.13
...
.14
.15
.15
..
.16
.16
.16
.17
.17
.18
.18
.19
.19
.19
.
.20
.20
1

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Summary of Contents for Honda GX120

  • Page 1: Table Of Contents

    11/07/04 17:14:33 32Z4M600_001 INTRODUCTION Thank you for purchasing a Honda engine. We want to help you to get the best results from your new engine and to operate it safely. This manual contains information on how to do that; please read it OWNER’S MANUAL...
  • Page 2: Safety Information

    Read them carefully. receives adequate instruction before operating the equipment. If a label comes off or becomes hard to read, contact your Honda Do not allow children to operate the engine. Keep children and servicing dealer for a replacement label.
  • Page 3: Locations

    11/07/04 17:15:04 32Z4M600_003 COMPONENT & CONTROL LOCATIONS FEATURES FUEL FILLER CAP OIL ALERT SYSTEM (applicable types) ‘‘Oil Alert is a registered trademark in the United States’’ FUEL TANK The Oil Alert system is designed to prevent engine damage caused by an insufficient amount of oil in the crankcase. Before the oil level in the crankcase can fall below a safe limit, the Oil Alert system will automatically stop the engine (the engine switch will remain in the ON position).
  • Page 4: Before Operation Checks

    11/07/04 17:15:28 32Z4M600_004 BEFORE OPERATION CHECKS OPERATION IS YOUR ENGINE READY TO GO? SAFE OPERATING PRECAUTIONS For your safety, to ensure compliance with environmental Before operating the engine for the first time, please review the regulations, and to maximize the service life of your equipment, it SAFETY INFORMATION section on page and the BEFORE OPERATION CHECKS on page .
  • Page 5 11/07/04 17:15:48 32Z4M600_005 Move the throttle lever away from the MIN. position, about 1/3 Operate the starter. of the way toward the MAX. position. RECOIL STARTER: THROTTLE LEVER Pull the starter grip lightly until you feel resistance, then pull briskly in the direction of the arrow as shown below. Return the starter grip gently.
  • Page 6: Stopping The Engine

    11/07/04 17:16:06 32Z4M600_006 STOPPING THE ENGINE SETTING ENGINE SPEED To stop the engine in an emergency, simply turn the engine switch Position the throttle lever for the desired engine speed. to the OFF position. Under normal conditions, use the following procedure.
  • Page 7: Servicing Your Engine

    Failure to follow this maintenance schedule could result in non- To ensure the best quality and reliability, use only new Honda warrantable failures. Genuine parts or their equivalents for repair and replacement.
  • Page 8: Recommended Oil

    11/07/04 17:16:49 32Z4M600_008 REFUELING Refuel carefully to avoid spilling fuel. Do not fill the fuel tank completely. It may be necessary to lower the fuel level depending Recommended Fuel on operating conditions. After refueling, screw the fuel filler cap Unleaded gasoline back on until it clicks.
  • Page 9: Recommended Oil

    11/07/04 17:17:15 32Z4M600_009 Oil Level Check Install the oil filler cap/dipstick and tighten securely. Check the engine oil level with the engine stopped and in a level WASHER position. DRAIN PLUG Remove the oil filler cap/dipstick and wipe it clean. Insert the oil filler cap/dipstick into the oil filler neck as shown, OIL FILLER CAP/ DIPSTICK...
  • Page 10 11/07/04 17:17:40 32Z4M600_010 6 : 1 Reduction Case 6 : 1 Reduction Case OIL LEVEL FILLER BOLT Remove the oil-level-check bolt Drain the used oil while the engine is warm. Warm oil drains and washer, and see whether the quickly and completely. oil level is at the edge of the bolt hole.
  • Page 11 11/07/04 17:18:02 32Z4M600_011 Cleaning Wipe dirt from the inside of the air cleaner case and cover using STANDARD DUAL-FILTER- ELEMENT TYPE a moist rag. Be careful to prevent dirt from entering the air duct Dual-Filter Element Types that leads to the carburetor. WING NUT Remove the wing nut from AIR CLEANER...
  • Page 12 11/07/04 17:18:29 32Z4M600_012 Low Profile Types Move the fuel valve to the ON position, and check for leaks. CLIP AIR CLEANER COVER Replace the O-ring if there is any leakage. Unsnap the air cleaner cover clips, remove the air cleaner SPARK PLUG cover, and remove the air filter element.
  • Page 13: Spark Arrester

    Check local laws and regulations. A spark appearance, and will make the engine easier to start when you use arrester is available from authorized Honda servicing dealers. it again. The spark arrester must be serviced every 100 hours to keep it Cleaning functioning as designed.
  • Page 14 11/07/04 17:19:22 32Z4M600_014 Draining the Fuel Tank and Carburetor Storage Precautions If your engine will be stored with gasoline in the fuel tank and carburetor, it is important to reduce the hazard of gasoline vapor ignition. Select a well ventilated storage area away from any Gasoline is highly flammable and explosive, and you appliance that operates with a flame, such as a furnace, water can be burned or seriously injured when handling...
  • Page 15: Taking Care Of Unexpected Problems

    Frequent fuse failure usually indicates a short circuit or an Honda carburetor as necessary. overload in the electrical system. If the fuse burns out frequently, servicing malfunction, take the engine to a Honda servicing dealer for repair. dealer, or refer ignition to shop malfunction, manual. valves stuck, etc.
  • Page 16 11/07/04 17:20:01 32Z4M600_016 TECHNICAL INFORMATION Remote Control Linkage Serial Number Location The throttle and choke control levers are provided with holes for Record the engine serial optional cable attachment. The following illustrations show number, type and purchase installation examples for a solid wire cable and for a flexible, date in the spaces below.
  • Page 17 The following instructions and procedures must be followed in order to keep the emissions from your Honda engine within the When the carburetor has been modified for high altitude operation, emission standards.
  • Page 18: Air Index

    11/07/04 17:20:43 32Z4M600_018 Air Index Specifications (Models certified for sale in California) GX120 (PTO shaft type S, with fuel tank) An Air Index Information label is applied to engines certified to an Length Width 329 mm emission durability time period in accordance with the Height (11.7...
  • Page 19 11/07/04 17:21:04 32Z4M600_019 Tuneup Specifications GX120/160/200 Wiring Diagrams ITEM SPECIFICATION MAINTENANCE Spark plug gap 0.7 0.8 mm Refer to page: 12 With Oil Alert and Electric Starter (0.028 0.031 in) Idle speed 1,400 Refer to page: 13 Valve GX120 IN: 0.15 0.02 mm...
  • Page 20: Warranty And Distributor

    If you are dissatisfied with the decision made by the dealership’s Facsimile: (03) 9270 1133 management, contact the Honda Office as shown. For European Area: Honda Europe NV. European Engine Center http://www.honda-engines-eu.com All Other Areas: Please contact the Honda distributor in your area for assistance. ENGLISH...

This manual is also suitable for:

Gx200Gx160

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