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Operator's Manual
Original Operating Instructions
Viper® 340cc
4-Cycle Engine
GAS/OIL
RATIO
50:1
P/N: 21203
ECN: 10638
REV1: 12/15/14
Get parts online at
© 2014 Ardisam, Inc.
www.ardisam.com
All Rights Reserved

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Summary of Contents for Viper 340cc 4-Cycle Engine

  • Page 1 Operator's Manual Original Operating Instructions Viper® 340cc 4-Cycle Engine GAS/OIL RATIO 50:1 P/N: 21203 ECN: 10638 REV1: 12/15/14 Get parts online at © 2014 Ardisam, Inc. www.ardisam.com All Rights Reserved...
  • Page 2 Notyes..............................................21-23 Federal Emission Information Viper® warrants to the retail purchaser, that this small, off-road engine was designed, built and equipped to conform at the time of initial sale to all applicable regulations of the U.S. Environmental Protection Agency (EPA).
  • Page 3: Warnings And Safety Precautions

    Operator’s Manual Viper® 340cc 4-Cycle Engine WARNINGS AND SAFETY PRECAUTIONS WARNING Owner’s Responsibility WARNING INDICATES A HAZARD WHICH, IF NOT Accurate assembly and safe and effective use of the rototiller is AVOIDED, COULD RESULT IN DEATH OR SERIOUS the owner’s responsibility.
  • Page 4 Operator's Manual Viper® 340cc 4-Cycle Engine • Do not use engine around dry brush, cloth rags, or WARNING other flammable materials. • Always keep materials and debris clear of muffler ENGINES GIVE OFF CARBON MONOXIDE, AN guard and other hot engine parts.
  • Page 5 • Use only original equipment parts from Viper®, including all nuts and bolts. Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5...
  • Page 6: Safety Symbols

    Operator's Manual Viper® 340cc 4-Cycle Engine SAFETY SYMBOLS The following symbols may be used on your engine to alert you to potential hazards or to give you guidance in operating your engine. Look over them and understand their meanings before operating your engine.
  • Page 7: Features

    Operator’s Manual Viper® 340cc 4-Cycle Engine FEATURES WARNING Engine Components SEE FIGURE 1 DO NOT REFUEL WHILE SMOKING, NEAR Model 21198, 340CC Vertical shaft OPEN FLAME, OR OTHER POTENTIAL This is a 4-cycle air cooled engine. The 340cc engine utilizes a HAZARDS.
  • Page 8: Operation

    Operator's Manual Viper® 340cc 4-Cycle Engine OPERATION CAUTION Pre-Operation Inspection HOT GASES ARE A NORMAL BY-PRODUCT OF A FUNCTIONING INTERNAL COMBUSTION ENGINE. WARNING FOLLOW ALL SAFETY INSTRUCTIONS TO PREVENT BURNS AND FIRES. ENGINES GIVE OFF CARBON MONOXIDE, AN ODORLESS, COLORLESS, POISONOUS GAS.
  • Page 9 Checking And Adding Oil Viper® recommends the addition of fuel stabilizer to protect your engine’s fuel system and prolong the life of your engine. Be sure the engine is located on a level surface before DO NOT mix oil with fuel.
  • Page 10: Warnings And Safety Precautions

    Operator's Manual Viper® 340cc 4-Cycle Engine WARNING ENGINES GIVE OFF CARBON MONOXIDE, AN ODORLESS, COLORLESS, POISONOUS GAS. CARBON MONOXIDE MAY BE PRESENT EVEN IF YOU DO NOT SMELL OR SEE ANY ENGINE EXHAUST. BREATHING CARBON MONOXIDE CAN CAUSE NAUSEA, FAINTING OR DEATH, IN ADDITION TO DROWSINESS, DIZZINESS AND CONFUSION.
  • Page 11: Maintenance And Storage

    Operator’s Manual Viper® 340cc 4-Cycle Engine MAINTENANCE AND STORAGE WARNING Refer to Table 2. Maintenance Schedule, and observe these TO PREVENT ACCIDENTAL STARTING: recommended care operating intervals to extend the life of your engine. ENGINE MUST BE TURNED OFF AND COOL...
  • Page 12 DAMAGE IS NOT COVERED UNDER WARRANTY. Oil Maintenance After the first five hours of operating a new Viper® Engine the oil should be replaced, and every 50 hours of operating time thereafter. The oil should be changed every 25 hours if used under severe conditions, such as in high temperatures or under heavy loads, otherwise changed weekly.
  • Page 13 Use solvent and a wire brush to clean the plug and compressed air to blow it out thoroughly. Carburetor • Never tamper with factory setting of the carburetor. • Contact your service provider or Viper® if adjustment is needed. Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5...
  • Page 14 Operator's Manual Viper® 340cc 4-Cycle Engine FUEL FILTER WARNING Clean or Replace Fuel Filter as follows: ENGINES GIVE OFF CARBON MONOXIDE, AN 1. Disconnect spark plug wire from spark plug. Remove ODORLESS, COLORLESS, POISONOUS GAS. spark plug. CARBON MONOXIDE MAY BE PRESENT EVEN IF 2.
  • Page 15: Troubleshooting And Repair

    TROUBLESHOOTING AND REPAIR At Viper® we build quality and durability into the design of our products; but no amount of careful design by us, and careful maintenance by you, can guarantee a repair-free life for your Viper® Engine. Most repairs will be minor, and easily fixed by following the suggestions in Table 3 Troubleshooting Guide.
  • Page 16: High Altitude Operation

    4. For more information on obtaining an altitude kit, see an authorized Viper dealer or contact customer service at 800-345-6007 Mondays through Fridays from 8 a.m. to 5 p.m. CST, or send an email to info@ardisam.com. Installation of altitude kits should be performed by an authorized Viper service center only.
  • Page 17: Illustrated Parts Breakdown

    Operator’s Manual Viper® 340cc 4-Cycle Engine ILLUSTRATED PARTS BREAKDOWN 340cc Engine Main PARTS Explosion Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5...
  • Page 18: Illustrated Parts Breakdown

    Operator's Manual Viper® 340cc 4-Cycle Engine ILLUSTRATED PARTS BREAKDOWN 340cc Engine Main PARTS Explosion ITEM # PART # DESCRIPTION QTY. 21423 KIT BLOWER HOUSING 21415 KIT FLYWHEEL IMPELLER STARTER 21425 KIT ASSEMBLY DIPSTICK 21421 KIT FUEL LINE AND CONNECTOR FILTER...
  • Page 19: Warranty

    (SEE EXPLANATION OF EMISSIONS CONTROL WARRANTY STATEMENT FOR DETAILS) Ardisam warrants the Viper® engine(s) under a two-year limited emissions control warranty to be free from defects in the materials or workmanship or both for the service life of the product not to exceed twenty-four consecutive months from the date of purchase for consumer applications.
  • Page 20: Warranty

    Operator's Manual Viper® 340cc 4-Cycle Engine YOUR WARRANTY RIGHTS AND OBLIGATIONS DEFECTS WARRANTY REQUIREMENTS: The United States Environmental Protection Agency and (a) The warranty period begins on the date the engine/ ARDISAM INC. (ARDISAM) are pleased to explain the emission equipment is delivered to an ultimate purchaser.
  • Page 21 Operator’s Manual Viper® 340cc 4-Cycle Engine NOTES Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5...
  • Page 22 Operator's Manual Viper® 340cc 4-Cycle Engine NOTES Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5...
  • Page 23 Operator’s Manual Viper® 340cc 4-Cycle Engine NOTES Check for parts online at www.ardisam.com or call 800-345-6007 M-F 8-5...
  • Page 24 Viper® Engines, Division of Ardisam, Inc. 1160 8th Avenue, PO Box 666 Cumberland, WI 54829 800-345-6007 | Fax 715-822-2223 E-mail: info@ardisam.com All weights, specifications and features are approximate and are subject to change without notice. Due to continuous product improvements, product images may not be exact. Items used for props not included. Some assembly may be required.

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