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Thank you for purchasing a Honda snowthrower. This manual covers the operation and maintenance of the HS521 snow- thrower. All information in this publication is based on the latest product informa- tion available at the time of approval for 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
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CONTENTS 1. SAFETY ............................................................................. 3 WARNING LABEL LOCATION ................................................ 3 SAFETY INFORMATION ....................................................... 4 COMPONENT IDENTIFICATION AND FUNCTION 2. ...................... 6 ENGINE SWITCH ................................................................. 7 A.C. STARTER BUTTON ....................................................... 7 FUEL VALVE .
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1. SAFETY WARNING LABEL LOCATION Read these labels before operating the snowthrower. CHUTE WHILE 3
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Honda snowthrowers are designed to give safe and dependable service if operated according to instructions. Read and understand this Owner’s Manual before operating the snowthrower. Failure to do so could result in personal injury or equipment damage. Before operating the snowthrower, inspect the area in which you are going to clear snow. Remove debris and other obstacles the snowthrower might strike or throw that may cause injury or damage to the snowthrower. Inspect the snowthrower befo
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l Know how to stop the snowthrower quickly, and understand the opera- tion of all controls. l Never permit anyone to operate the snowthrower without proper in- struction. If people or pets suddenly appear in front of the snowthrower while it is in operation, immediately release the auger clutch lever to stop the snowthrower and avoid possible injury from rotating auger blades. l If the snow discharge chute becomes clogged, stop the engine and use a trowel or long wooden stick to unclog i
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2. COMPONENT IDENTIFICATION AND FUNCTION AUGER CLUTCH LEVER CHUTE GUIDE HANDLE AUGER PADDLE - / ---Tkllr CENTER’bADDLE ENGINE SWITCH CHOKE KNOB TTON SPARK PLUG COVER =tqciJali/ FUEL VALVE d t ENGINE OIL DRAIN PLUG #LADE 6
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ENGINE SWITCH Use the engine switch to turn the ignition system ON for starting, and to STOP the e . FF A Type AS Type A.C. STARTER BUTTON Push the A.C. starter button to operate the electric starter. (AS Type) STARTER BUTTON FUEL VALVE The fuel valve opens and closes the fuel line leading from the fuel tank to the carburetor. Make sure that the valve is positioned exactly at either the ON or OFF position. m Before transporting the snowthrower, be sure to turn the fuel valve to OFF
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CHOKE KNOB Close the choke when the engine is cold or difficult to start. CHOKE KNOB STARTER GRIP Pull this grip to start the engine. STARTER 8
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CHUTE GUIDE HANDLE The chute guide controls the snow discharge angle and direction. LOW AND NEAR HIGH AND FAR AUGER CLUTCH LEVER When the clutch lever is squeezed, the snowthrowing mechanism is put into operation, and the snowthrower moves forward. AUGER CLUTCH LE NOTE: Never squeeze auger clutch on cleared ground; the snowthrower will start suddenly. 9
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3. PRE-OPERATION CHECK m To prevent accidental start-up, turn the engine switch OFF, and disconnect the spark plug cap before performing the pre-operation inspection. FUEL LEVEL Unscrew the fuel cap. Check the fuel level. Your engine is designed to use any gasoline that has a pump oc- ) of 86 or higher, or that has a research octane number tane number (v of 91 or higher. Gasoline pumps at service station normally display the pump octane number. We recommend that you use unleaded fuel
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Gasoline is extremely flammable and is explosive under certain conditions. Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow flames or sparks in the area where the engine is refueled or where gasoline is stored. Do not overfill the fuel tank (there should be no fuel in the filler neck). After refueling, make sure the tank cap is closed properly and securely. Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any fuel is sp
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ENGINE OIL LEVEL Inspection: With the snowthrower on a level surface, remove the oil filler cap and wipe the dipstick clean. Insert the dipstick into the filler neck, but do not screw it in. Remove the dipstick and check the oil level. If the level is low, fill to the top of the oil filler neck with the recommended oil. OIL FILLER NECK -20 0 20 40 50°F I -30 -20 -10 0 10% OIL FILLER CAP AND DIPSTICK UPPER LEVEL I OIL CAPACITY: 0.6 ! (0.63 US qt. 0.53 Imp qt) RECOMMENDED OIL: Use
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4. STARTING THE ENGINE m Never run the engine in an enclosed or confined area. Exhaust contains poisonous carbon monoxide gas; exposure can cause loss of con- sciousness and may lead to death. l Connect the female end of your power cord to the switch box and the male end to a properly grounded 120 Volt A/C outlet. (AS Type). ONLY WITH GROUNDED OUTLET AN0 IUSE R 1 MINUTE WITHOUT POWER CORD 1. Turn the engine switch to the ON position. AS Type A Type l To minimize the possibility of
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2. Turn the fuel valve to the ON position. FUEL ‘VALVE 3. When the engine is cold, move the choke to the CLOSE position. CHOKE KNOB 4. Pull the starter grip lightly until you feel resistance, then pull briskly. m Damage may result if the starter grip is pulled while the engine is running. TARTER GRIP 14
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l Push the starter button until the engine starts. (AS Type) m l Do not operate the starter for more than 1 minute. If the engine fails to start, release the button and allow the starter to cool for 15 minutes before operating it again. l To avoid serious engine damage, never operate the starter while the engine is running. l After the engine starts, disconnect the power cord from the electrical outlet first, and then from the switch box. STARTER BUTTON 5. Let the engine warm up for se
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5. SNOWTHROWER OPERATION Before operating this equipment you should read and understand the SAFETY information on pages 4 and 5. 1. Hold the handle firmly with one hand. 2. Squeeze the auger clutch lever with your other hand to engage the snowthrowing mechanism. When you release your hand, it will stop. AUGER CLUTCH LEVER NOTE: To move the snowthrower forward, raise the handle up and away from the ground. The snowthrower will move forward as long as the auger contacts the ground. To sto
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3. Start the snowthrowing operation only after the engine has warmed up and is running smoothly. l Adjust the snow discharge chute to avoid hitting the operator, bystanders, windows, and other objects with thrown snow. Stay clear of the snow discharge chute while the engine is running. l If the snow discharge chute becomes clogged, stop the engine and use a trowel or long wooden stick to unclog it. Never put your hand into the snow discharge chute while the engine is running; serious pers
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4. When the temperature is high, and the snow is wet and heavy, operate at reduced ground speed. l Walk the snowthrower slowly to remove hard or deep snow. Push han- dle down and forward for additional traction and overlap each swath if necessary. 5. When the height of the snow is greater than the height of the snow- throwing mechanism, push the snowthrower back and forth to remove snow gradually. 18
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HIGH ALTITUDE OPERATION At high altitude, the standard carburetor air-fuel mixture will be excessive- ly rich. Performance will decrease, and fuel consumption will increase. High altitude performance can be improved by installing a smaller diameter main fuel jet in the carburetor and readjusting the pilot screw. If you always operate the snowthrower at altitudes higher than 6,000 feet above sea level, have your authorized Honda Snowthrower dealer perform these carburetor modifications. E
