Hyundai HX Series Manual
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Hyundai HX Series Manual

Hyundai HX Series Manual

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HX ENGINES
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  • Page 1 HX ENGINES Manual...
  • Page 2 HYUNDAI HX ENGINES HX224 HX420E HX457E The engine exhaust from this product contains chemicals known to cause cancer, birth defects or other reproductive harm. Licensed by Hyundai Corporation Holdings, Korea. HX_Manual_EN_2024-11-20...
  • Page 3 HX ENGINES This product is supported by Midland Power. Contact us directly for assistance and warranty help. Do not return this product to store. You must register online for your warranty to be valid. It only takes a minute, do it now while you still have your purchase receipt.
  • Page 4 HYUNDAI Thanks for choosing Hyundai! You're excited to get started, we'll keep this brief. READ THIS ENTIRE GUIDE BEFORE USING THIS PRODUCT AND SAVE FOR LATER USE. This user guide contains important instructions including safety, setup, operation, and maintenance that must be followed.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS 1. Safety 2. Learn About Your Engine 3. Pre-Operation Check 3.1 Prepare the Air Filter 3.2 Fill the Oil 3.3 Fill Fuel Tank 4. Starting The Engine 4.1 Preparing Your Engine to Start 4.2 Starting Your Engine (Recoil And Electric Start) 5.

  • Page 6: Safety

    HYUNDAI 1. SAFETY DANGER! Using an engine indoors can kill you in minutes. Engine exhaust contains carbon monoxide. This is a poison that you cannot see or smell. NEVER use inside a home or garage. WARNING! This product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer and birth defects or other reproductive harm.

  • Page 7: Maintenance Safety

    HX ENGINES   Pay attention to the warning labels. The engine exhaust system will become heated during operation and remain hot immediately after the engine is stopped.   Gasoline is a highly flammable and explosive liquid. Refuel in a well ventilated area with the engine stopped.

  • Page 8: Other Safety Tips

    HYUNDAI   Use rubber gloves when coming into contact with engine oil.   Always stop the engine set before removing the oil filler cap.   Only qualified maintenance personnel with knowledge of fuels, electricity, and machinery hazards should perform maintenance procedures.

  • Page 9: Learn About Your Engine

    HX ENGINES 2. LEARN ABOUT YOUR ENGINE This section will show you how to identify key parts of your engine. Going over the terminology below will make sure we’re on the same page. HX224 Fuel Cap Throttle Lever Choke Lever Fuel Shutoff Power Switch Recoil Starter...
  • Page 10 HYUNDAI HX420E / HX457E Fuel Cap Throttle Lever Choke Power Switch / Lever Electric Start Fuel Breaker Reset Shutoff Recoil Starter Handle Oil Dipstick Oil Drain Plug Exhaust Air Filter Spark Plug Throttle Stop Screw Engine Shaft...

  • Page 11: Pre-Operation Check

    HX ENGINES 3. PRE-OPERATION CHECK Set the engine on a level surface and the power switch to OFF. 3.1 PREPARE THE AIR FILTER Prepare the air filter before your first use. Check the maintenance section for a complete cleaning guide. Air Filter Cover Wingnut Foam Air Filter...

  • Page 12: Fill The Oil

    HYUNDAI 3.2 FILL THE OIL Oil Cap / Dipstick Max. Oil Level Min. Oil Level HX224 Oil Capacity: 600 mL HX420E / HX457E Oil Capacity: 1.1 L Unscrew the oil dipstick. Fill with fresh oil up to the maximum fill level on the dipstick.
  • Page 13 HX ENGINES NOTE Max. Oil Level Min. Oil Level   Do not tilt the engine when adding engine oil. This could result in overfilling and damage to the engine.   Use high quality 4-stroke engine oil, certified to meet or exceed API standard SG, SF, SAE ratings with strong detergents.

  • Page 14: Fill Fuel Tank

    HYUNDAI 3.3 FILL FUEL TANK DANGER! Gasoline is highly flammable and explosive under certain conditions. Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow open flames or sparks in the area where the engine is being refueled or where gasoline is stored.

  • Page 15: Starting The Engine

    HX ENGINES 4. STARTING THE ENGINE DANGER! Using an engine indoors WILL KILL YOU IN MINUTES. Engine exhaust contains high levels of carbon monoxide (CO), a poisonous gas you cannot see or smell. If you can smell the engine exhaust you are breathing CO. Even if you cannot smell the exhaust, you could be breathing CO.

  • Page 16: Preparing Your Engine To Start

    HYUNDAI 4.1 PREPARING YOUR ENGINE TO START Choke Choke Choke Start Démarrer Marche Start Démarrer Marche Start Démarrer Marche Move the choke lever to the START position. Fuel / Carburant Fuel / Carburant Fuel / Carburant Closed Open Fermé Ouvert...

  • Page 17: Starting Your Engine (Recoil And Electric Start)

    HX ENGINES 4.2 STARTING YOUR ENGINE HX224 HX420E / HX457E 4.2.1 Recoil Start Follow all the steps in section 4.1: “PREPARING YOUR ENGINE TO START”. HX224 HX420E / HX457E HX224 HX420E / HX457E Turn the power switch to the ON position. Pull the recoil starter handle slowly until you feel it engage then pull quickly.
  • Page 18 HYUNDAI 4.2.2 Electric Start (HX420E / HX457E ONLY) Follow all the steps in section 4.1: “PREPARING YOUR ENGINE TO START”. HX420E / HX457E Turn the key to the START position and hold it there until the engine starts or 5 seconds maximum. Wait 10 seconds then try again if it did not start.

  • Page 19: Stopping The Engine

    8.6.3)Use 8.6.3)Use a br HX ENGINES spark ar 5. STOPPING THE ENGINE replace i HX224 HX420E / HX457E 8.6.3)Use 8.6.4)Rein 8.6.3)Use a br 8.6.4)Reinstal Move the throttle to the MIN position. spark ar HX224 HX420E / HX457E replace i Fuel / Carburant Closed Open Fermé...

  • Page 20: Maintenance

    HYUNDAI 6. MAINTENANCE Proper maintenance keeps your engine in the best operating condition by ensuring safe, economical and trouble-free operation. Only use genuine parts and recommended fluids to replace the worn components. Improper maintenance may cause the engine to malfunction and can lead to serious injury. Contact customer support if you have any maintenance questions.

  • Page 21: Maintenance Schedule

    HX ENGINES 6.1 MAINTENANCE SCHEDULE Maintain the engine according to the maintenance schedule below. NOTE   Service more frequently when used in dusty areas.   These items should be serviced by an authorized service center, unless you have the proper tools and are mechanically proficient. Refer to manual for service procedures.

  • Page 22: Changing The Oil

    HYUNDAI 6.2 CHANGING THE OIL WARNING! Used motor oil can cause skin irritations if left in long-term contact with skin. Thoroughly wash off used oil as soon as possible with soap and water. Do not dispose of used oil in drains or on soil. Local service shops provide environmentally-friendly disposal methods.
  • Page 23 HX ENGINES Effective Viscosity Range of Engine Oils 15W-50 Synthetic 5W-30 10W-30 5W-30 0°C °C 32°F °F NOTE   Do not tilt the engine when adding engine oil. This could result in overfilling and damage to the engine.   Use high quality 4-stroke engine oil, certified to meet or exceed API standard SG, SF, SAE ratings with strong detergents.

  • Page 24: Cleaning The Air Filter

    HYUNDAI 6.3 CLEANING THE AIR FILTER WARNING! Using gasoline or other flammable solvents can cause a fire or explosion. Do not operate this product without an air filter. A dirty air filter will restrict air flow into the carburetor. Clean and maintain the air filter regularly, especially in dusty areas.

  • Page 25: Spark Plug Service

    HX ENGINES 6.4 SPARK PLUG SERVICE NOTE   Do NOT rinse spark plug in water. Follow guidelines and be careful not to overtighten the spark plug. Recommended spark plug: F7RTC Spark plug Gap: 0.7-0.8 mm Check the spark plug gap and clean the carbon deposits at the bottom of the spark plug.

  • Page 26: Spark Arrester Maintenance

    HYUNDAI 6.5 SPARK ARRESTER MAINTENANCE Spark Arrester Wait until the engine has cooled down. Brush the accumulated debris from the muffler.

  • Page 27: Throttle Stop Adjust

    HX ENGINES 6.6 THROTTLE STOP ADJUST Start the engine outdoors, and allow it to warm up to operating temperature. Move the throttle lever to its minimum position. Turn the throttle stop screw to obtain the standard idle speed. Standard idle speed: 1,800±150 rpm.

  • Page 28: Fuel Filter Maintenance

    HYUNDAI 6.7 FUEL FILTER MAINTENANCE WARNING! Gasoline is highly flammable and explosive under certain conditions. Refuel in a well-ventilated area with the engine stopped. Do not smoke or allow open flames or sparks in the area where the engine is being refueled or where gasoline is stored.

  • Page 29: Carburetor Modification For High Altitude Operation

    HX ENGINES 6.8 CARBURETOR MODIFICATION FOR HIGH ALTITUDE OPERATION Carburetor Assembly Fuel Cup Seal Mixing Tube (might remain inside carburetor) Main Jet Fuel Cup Washer Drain Bolt Bolt Seal Bolt   At high altitudes, the standard carburetor air-fuel mixture will be too rich. Fuel consumption will increase and performance will decrease.

  • Page 30: Transportation & Storage

    HYUNDAI 7. TRANSPORTATION & STORAGE Draining the Fuel Tank Turn OFF the engine. Remove the fuel cap and the debris screen underneath the fuel cap. Empty the fuel tank using a siphon and an approved gasoline container. Loosen the 10mm carburetor drain bolt (with a wrench or socket) to discharge all gasoline from inside of the carburetor.

  • Page 31: Storage Duration

    HX ENGINES Storage Gasoline can oxidize in as little as 30 days, causing gum and varnish to build up in fuel system components. NOTE   Ensure that the storage area is free of excess humidity and dust. Storage Duration Preparation Required Less than 1 Month  ...

  • Page 32: Emission Control System

    HYUNDAI 8. EMISSION CONTROL SYSTEM Emission Source Exhaust gas contains carbon monoxide, nitrogen oxides (NOx) and hydrocarbons. It is very important to control the emissions of NOx and hydrocarbons as they are a major contributor to air pollution. Carbon monoxide is a poisonous gas. The emission of fuel vapors is a source of pollution as well.

  • Page 33: Replacement Parts And Accessories

    HX ENGINES Replacement parts and accessories The parts making up the emission control system in your product’s engine have been specifically approved and certified by the regulatory agencies. You can trust that the replacement parts supplied by customer service have been manufactured to the same production standard as the original parts.

  • Page 34: Troubleshooting

    HYUNDAI 9. TROUBLESHOOTING If the engine does not start: Is there fuel in the tank? Refill the fuel tank. Turn the fuel switch to OPEN. Is the fuel switch OPEN? Turn the power switch to RUN. Is the power switch...
  • Page 35 HX ENGINES 9.1 OIL AND GAS TROUBLESHOOTING FOR 4-STROKE ENGINES Engine is Low Performance, Smoking Excessive Noise / Vibrations Too Much Oil Not Enough Oil Solution: Solution: 1. Turn off device, wait for engine to 1. Turn off device, wait for engine to cool.
  • Page 36 HYUNDAI How do I make sure How often do I I have enough oil? change my oil? Most Accurate: First Oil Change (~15 Minutes): 1. Follow steps in your manual to 1. Turn off device, wait for engine to completely drain your device of cool.

  • Page 37: Technical Specifications

    HX ENGINES 10. TECHNICAL SPECIFICATIONS HX224 HX420E HX457E 8.0 HP, Single Cylinder, 15 HP, Single Cylinder, 17.5 HP, Single Cylinder, Type forced air cooling, forced air cooling, forced air cooling, 4-stroke, OHV 4-stroke, OHV 4-stroke, OHV Displacement (cm 224cc 420cc 457cc Torque Rating 26.5...

  • Page 38: Limited Warranty

    Toll Free: 1-877-528-3772 E-mail: support@hyundaipower.ca Online: www.hyundaipower.ca Hyundai Power Equipment products are distributed by: Midland Power Inc. 376 Magnetic Drive, Toronto, ON M3J 2C4, Canada This product is warranted to be free of defects in material and workmanship for three years from date of purchase.
  • Page 39 Exclusions Not Covered by this Limited Warranty   Normal engine wear   Damage caused by lack of maintenance as described in the Hyundai User Guides, or negligence by using improper or impure motor oil, coolant, or fuel  ...
  • Page 40 HYUNDAI Batteries Batteries supplied with any engine product should be considered a bonus item and not covered by warranty. Batteries can be damaged by shock, shorting terminals, heat, acid spillage and a number of other factors that cannot be controlled after they have left our facility.

  • Page 41: Warranty Claim Procedure

    HX ENGINES Our Warranty Rights and Obligations U.S. States, U.S. territories, and Canada In areas of the United States and in Canada, your engine must be designed, built, and equipped to meet the U.S. EPA and Environment Canada emission standards for spark-ignited engines at or below 19 kilowatts.
  • Page 42 Enjoy! Be sure to check www.hyundaipower.ca for updates regarding your product.
  • Page 43 Customer Service Online: www.hyundaipower.ca E-mail: support@midlandpowerinc.com Toll Free: 1-877-528-3772...
  • Page 44 For Inquiries, Please Contact: Midland Power Inc. 376 Magnetic Drive, Toronto, ON Canada M3J 2C4 1-877-528-3772 support@hyundaipower.ca www.hyundaipower.ca Imported / Distributed by Midland Power Inc., Canada Licensed by Hyundai Corporation Holdings, Korea...

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