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                        Owner’s Manual 
SNOWTHROWER 
HS621 
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01994 American Honda Motor Co., Inc. - All Rights Reserved 
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                        Thank you for purchasing a Honda snowthrower. We want to help you get  the best results from your new snowthrower and to operate it safely. This  manual contains the information on how to do that; please read it carefully.  This owner’s manual describes the operation and maintenance of HONDA  snowthrower: HS621  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  
                    
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                        CONTENTS  ................................................................................................................  SAFETY  ......................................................................................  Safety label locations  4  ..........................................................................................  Safety Information  7  .........................................................................  COMPONENT IDENTIFICATION  CONTROLS ............................
                    
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                        SAFETY  Safety label locations  These labels warn you of potential hazards that can cause serious injury.  Read them carefully.  If a label comes off or becomes hard to read, contact your Honda  snowthrower dealer for a replacement.  ISHUT OFF ENGINE  WHEN REFUELING.  SNEVER REFUEL  3                                                                                                                                                                                                                       
                    
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                        Safety information  To ensure safe operation-  * Always make a pre-operation check (pages 11 thru 13 1 before you  start the engine. You may prevent an accident or equipment damage.  l 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.  l Before operating the snowthrower, inspect the area in whic
                    
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                        l Adjust the snow discharge chute to avoid hitting the operator,  bystanders, windows, and other objects with ejected snow. Stay clear  of the snow discharge chute while the engine is running.  .* Children and pets must be kept away from the area of operation to  avoid injury from flying debris and contact with the snowthrower.  l To avoid overturning, be careful when changing the direction of the  snowthrower while operating it on a slope.  Do not use the snowthrower to remove snow from roofs. 
                    
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                        l Gasoline is extremely flammable and is explosive under certain  conditions.  Do not smoke or allow flames or sparks where the snowthrower is  refueled or where gasoline is stored. Refuel in a well-ventilated area  with the engine stopped.  Do not overfill the fuel tank, and make sure the filler cap is closed  securely after refueling.  l Never run the engine in an enclosed or conffined area. Exhaust contains  poisonous carbon monoxide gas; exposure can. cause loss of  consciousness and may lea
                    
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                        COMPONENT IDENTIFICATION  AUG/ER CLUTCH LEVER  CHUTE GUIDE HANDLE  CHUTE GlJ@E  . CAP  CHUTE’ \\,  AUGERPADDLE’ / 7  CENTER PADDLE  ENGIkjE SWITCH  STARTER BUTTON  SPARK PLUG COV  ENGINE SERIAL NUMBER  I  ’ SCRAPER BLADE  \  ENGINE OIL DRAIN PLUG  FRAME SERIAL NUMBER  Record the frame and engine serial numbers for your reference. Refer to  the serial numbers when ordering parts, and when making technical or  warranty inquiries (see page 41 1.  Frame serial number:  Engine serial number:  7      
                    
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                        CONTROLS  Engine switch  Use the engine switch to turn the ignition system ON for starting, and to  STOP the engine.  ENGINE SWITCH  A.C. starter button  Push the starter button to operate the electric starter. (AS type)  STARTER SUTTON  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.  Before transporting the snowthrower, be sure to turn the fuel valve to  OF
                    
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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.  -  ,c -’  _.-.-_.-  ”  9                                                                                                                                                                                                                                                                                                                                                 
                    
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                        Chute guide handle  The chute guide controls the snow discharge angle and direction.  Auger clutch lever  When the clutch lever is squeezed, the snowthrowing mechanism is put  into operation, and the snowthrower moves forward.  OPERATES  AUGER CLUTCH L  NOTE:  Never squeeze the auger clutch on cleared ground; the snowthrower will  start suddenly.  IO                                                                                                                                                    
                    
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                        PRE-OPERATION CHECK  Fuel recommendation  Check the snowthrower on level ground with the engine stopped.  Check the fuel level, and refill the tank if the fuel level is low. Refuel  carefully to avoid overfilling or spilling fuel. There should be no fuel in the  filler neck.  FUEL TANK CAPACITY: 1.25 0 (0.330 US gal ,0.275 Imp gal)  l Gasoline is extremely flammable and is explosive under certain  conditions.  l Refuel in a well-ventilated area with the engine stopped. Allow the  engine to cool 
                    
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                        Occasionally you may hear light “spark knock” or “pinging” (metallic  rapping noise) while operating under heavy loads. This is no cause for  concern.  If spark knock or pinging occurs at a steady engine speed, under normal  load, change brands of gasoline. If spark knock or pinging persists, see an  authorized Honda snowthrower dealer.  rGi%iE-J  Running the engine with persistent spark knock or pinging can cause  engine damage.  Running the engine with persistent spark knock or pinging is misu
                    
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                        Engine oil  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  -xl 0 20 40 WF  -30 -20 -10 0 10-C  011  5w-30  0  G  OIL FILLER CAP AND DIPSTICK -  &p  r z-7.::::  UPPER LEVEL - - - . . . . . .  =:2 .r:-  ----  m--w  -I  I 
                    
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                        STARTING THE ENGINE  Never run the engine in an enclosed or confined area. Exhaust contains  poisonous carbon monoxide gas; exposure can cause loss of  consciousness and may lead to death.  1, 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)  IUSE ONLY WITH GROUNDEO OUTLET ANCI  3-WIRE CORD.  1120 VOLT A.C. ONLY ^.m.-- ^a--  NO0 NOT CRANK OVER I MINUTE WllHOlJl~~\ /r\ 1  COOLING 16 MINUTES.  NO0 NOT USE IN RAIN.  
                    
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                        2. Turn the fuel valve to the ON position.  Be sure that the drain knob is tightened securely.  FUEL VALVE  DRAIN KNOB  3. In cold weather and 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.  JV]  Damage may result if the starter grip is pulled while the engine is running.  15                                                                                                                   
                    
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                        l Push the starter button until the engine starts. (AS Type)  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 sever
                    
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                        SNOWTHROWER OPERATION  Before operating this equipment you should read and understand the  SAFETY INFORMATION on page 4-6.  1. Hold the handle firmly with your 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 stop,
                    
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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 wooden stick to unclog it. Never put your hand into the snow  discharge chute while the engine is running; serious personal injury  cou
                    
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                        4. When the temperature is high, and the snow is wet and heavy, operate  at reduced speed.  l Walk the snowthrower slowly to remove hard or deep snow. Push  handle 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.  19