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Black
DIC 157
Owner’s Manual
GX270 GX390
LPG-Fueled Engine
K1:GX390
AH HC
31ZK6601 300.2003.10
EM3
2003 Honda Motor Co., Ltd. -All Rights Reserved
00X31-ZK6-6010 Printed in Japan
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01/11/15 10:56:30 31ZK6600_001 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Keep this owner’s manual handy, so you can refer to it at any time. This owner’s manual is considered a permanent part of the engine and should remain with the engine if resold. The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations are based on
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01/11/15 10:56:38 31ZK6600_002 INTRODUCTION Congratulations on your selection of a Honda engine. We are certain you will be pleased with your purchase of one of the finest engines on the market. We want to help you get the best results from your new engine and to operate it safely. This manual contains the information on how to do that; please read it carefully. As you read this manual, you will find information preceded by a symbol. That information is intended to help you avoid damage to your
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01/11/15 10:56:50 31ZK6600_003 INTRODUCTION A FEW WORDS ABOUT SAFETY Your safety and the safety of others are very important. And using this engine safely is an important responsibility. To help you make informed decisions about safety, we have provided operating procedures and other information on labels and in this manual. This information alerts you to potential hazards that could hurt you or others. Of course, it is not practical or possible to warn you about all the hazards associated with
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01/11/15 10:56:54 31ZK6600_004 CONTENTS ENGINE SAFETY ........................................................................................ 5 IMPORTANT SAFETY INFORMATION ................................................. 5 CONTROLS & FEATURES ......................................................................... 7 COMPONENT & CONTROL LOCATIONS ............................................. 7 CONTROLS ...........................................................................................
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01/11/15 10:56:57 31ZK6600_005 CONTENTS HELPFUL TIPS & SUGGESTIONS .......................................................... 33 STORING YOUR ENGINE .................................................................... 33 Storage Preparation ......................................................................... 33 Storage Precautions ......................................................................... 34 Removal From Storage ................................................................
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01/11/15 10:57:08 31ZK6600_006 ENGINE SAFETY IMPORTANT SAFETY INFORMATION Most accidents with engines can be prevented if you follow all instructions in this manual and on the engine. Some of the most common hazards are discussed below, along with the best way to protect yourself and others. Owner Responsibilities Honda engines are designed to give safe and dependable service if operated according to instructions. Read and understand this owner’s manual before operating the engine. Failure to do
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01/11/15 10:57:13 31ZK6600_007 ENGINE SAFETY Carbon Monoxide Hazard Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of exhaust gas. Never run the engine in a closed garage or confined area. Other Equipment Review the instructions provided with the equipment powered by this engine for any additional safety precautions that should be observed in conjunction with engine startup, shutdown, or operation, or protective apparel that may be needed to operate the equipment. 6
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01/11/15 10:57:19 31ZK6600_008 CONTROLS & FEATURES COMPONENT & CONTROL LOCATIONS MUFFLER AIR CLEANER THROTTLE LEVER SPARK PLUG CHOKE LEVER STARTER GRIP RECOIL STARTER ENGINE SWITCH OIL DRAIN PLUG OIL FILLER CAP 7
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01/11/15 10:57:27 31ZK6600_009 CONTROLS & FEATURES CONTROLS Engine Switch The engine switch enables and disables the ignition system. The engine switch must be in the ON position for the engine to run. Turning the engine switch to the OFF position stops the engine. ENGINE SWITCH OFF ON 8
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01/11/15 10:57:34 31ZK6600_010 CONTROLS & FEATURES Choke Lever The choke lever opens and closes the choke valve in the carburetor. The CLOSED position creates a vacuum to help the LPG to flow into the engine during starting. The OPEN position removes the vacuum after the engine has started and can produced its own vacuum. Some engine applications use a remotely-mounted choke control rather than the engine-mounted choke lever shown here. CHOKE LEVER C CL LO OS SE ED D O OP PE EN N 9
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01/11/15 10:57:42 31ZK6600_011 CONTROLS & FEATURES Throttle Lever The throttle lever controls engine speed. Moving the throttle lever in the directions shown makes the engine runfasterorslower. Some engine applications use a remotely-mounted throttle control rather than the engine-mounted throttle lever shown here. THROTTLE LEVER F FA AS ST T SLOW Recoil Starter Grip Pulling the starter grip operates the recoil starter to crank the engine. STARTER GRIP 10
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01/11/15 10:57:47 31ZK6600_012 CONTROLS & FEATURES FEATURES Oil Alert System (applicable engine types) 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 ignition switch will remain in the ON position). If the engine stops and will not restart, check the engine oil level (page 24) before troubleshooting in
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01/11/15 10:57:56 31ZK6600_013 BEFORE OPERATION IS YOUR ENGINE READY TO GO? For your safety, and to maximize the service life of your equipment, it is very important to take a few moments before you operate the engine to check its condition. Be sure to take care of any problem you find, or have your servicing dealer correct it, before you operate the engine. Improperly maintaining this engine, or failing to correct a problem before operation, could cause a malfunction in which you could be serio
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01/11/15 10:58:03 31ZK6600_014 BEFORE OPERATION Check the Engine Check the engine oil level (see page 24). Running the engine with a low oil level can cause engine damage. The Oil Alert system (applicable engine types) will automatically stop the engine before the oil level falls below safe limits. However, to avoid the inconvenience of an unexpected shutdown, always check the engine oil level before startup. Check the air filter (see page 27 ). A dirty air filter will restrict air flow to the c
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01/11/15 10:58:11 31ZK6600_015 OPERATION SAFE OPERATING PRECAUTIONS Before operating theenginefor thefirst time,pleasereviewthe IMPORTANT SAFETY INFORMATION on page 5 and the chapter titled BEFORE OPERATION. Carbon monoxide gas is toxic. Breathing it can cause unconsciousness and even kill you. Avoid any areas or actions that expose you to carbon monoxide. Review the instructions provided with the equipment powered by this engine for any safety precautions that should be observed in conjunction
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01/11/15 10:58:17 31ZK6600_016 OPERATION 2. Move the choke lever to the CLOSED position. Always use the choke when starting the engine. Some engine applications use a remotely-mounted choke control rather than the engine-mounted choke lever shown here. CHOKE LEVER C CL LO OS SE ED D 3. Move the throttle lever away from the SLOW position, about 1/3 of the way toward the FAST position. Some engine applications use a remotely-mounted throttle control rather than the engine-mounted throttle lever sh
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01/11/15 10:58:23 31ZK6600_017 OPERATION 4. Turn the engine switch to the ON position. ENGINE SWITCH ON 5. Operate the starter. Pull the starter grip lightly until you feel resistance, then pull briskly. Return the starter grip gently. STARTER GRIP 16
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01/11/15 10:58:27 31ZK6600_018 OPERATION 6. Move the choke lever to the OPEN position after the engine has started. CHOKE LEVER OPEN 17
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01/11/15 10:58:36 31ZK6600_019 OPERATION STOPPING THE ENGINE To stop the engine in an emergency, simply turn the engine switch to the OFF position. Under normal conditions, use the following procedure. 1. Move the throttle lever to the SLOW position. Some engine applications use a remotely-mounted throttle control rather than the engine-mounted throttle lever shown here. THROTTLE LEVER SLOW 2. Turn the engine switch to the OFF position. ENGINE SWITCH OFF 3. Turn the fuel valve to the CLOSED or O
