Download Print this page
Honda WMP20X Manual
Hide thumbs Also See for WMP20X:

Advertisement

Quick Links

A Few Words About Safety
SERVICE INFORMATION
The service and repair information contained in this manual is intended for use by qualified, professional technicians. Attempting
service or repairs without the proper training, tools, and equipment could cause injury to you and/or others. It could also damage this
Honda product or create an unsafe condition.
This manual describes the proper methods and procedures for performing service, maintenance, and repairs. Some procedures
require the use of special tools. Any person who intends to use a replacement part, service procedure, or a tool that is not
recommended by Honda must determine the risks to his or her personal safety and the safe operation of this product.
If you need to replace a part, use Honda Genuine parts with the correct part number or an equivalent part. We strongly recommend
that you do not use replacement parts of inferior quality.
For Your Customer's Safety
Proper service and maintenance are essential to the customer's safety and the reliability of this product. Any error or oversight while
servicing this product can result in faulty operation, damage to the product, or injury to others.
 WARNING
Improper service or repairs can create an
unsafe condition that can cause your customer
or others to be seriously hurt or killed.
Follow the procedures and precautions in this
manual and other service materials carefully.
For Your Safety
Because this manual is intended for the professional service technician, we do not provide warnings about many basic shop safety
practices (Hot parts-wear gloves, for example). If you have not received shop safety training or do not feel confident about your
knowledge of safe servicing practice, we recommend that you do not attempt to perform the procedures described in this manual.
Some of the most important general service safety precautions are given below. However, we cannot warn you of every conceivable
hazard that can arise in performing service and repair procedures. Only you can decide whether or not you should perform a given
task.
 WARNING
Failure to properly follow instructions and
precautions can cause you to be seriously hurt
or killed.
Follow the procedures and precautions in this
manual carefully.
Important Safety Precautions
Make sure you have a clear understanding of all basic shop safety practices and that you are wearing appropriate clothing and using
safety equipment. When performing any service task, be especially careful of the following:
• Read all of the instructions before you begin, and make sure you have the tools, the replacement or repair parts, and the skills
required to perform the tasks safely and completely.
• Protect your eyes by using proper safety glasses, goggles, or face shields anytime you hammer, drill, grind, or work around
pressurized air, pressurized liquids, springs or other stored-energy components. If there is any doubt, put on eye protection.
• Use other protective wear when necessary, for example gloves or safety shoes. Handling hot or sharp parts can cause severe
burns or cuts. Before you grab something that looks like it can hurt you, stop and put on gloves.
• Protect yourself and others whenever you have engine-power equipment up in the air. Anytime you lift this product with a hoist,
make sure that the hoist hook is securely attached to the product.
Make sure the engine is off before you begin any servicing procedures, unless the instruction tells you to do otherwise. This will help
eliminate several potential hazards:
• Carbon monoxide poisoning from engine exhaust. Be sure there is adequate ventilation whenever you run the engine.
• Burns from hot parts. Let the engine and exhaust system cool before working in those areas.
• Injury from moving parts. If the instruction tells you to run the engine, be sure your hands, fingers and clothing are out of the way.
Gasoline vapors and hydrogen gasses from battery are explosive. To reduce the possibility of a fire or explosion, be careful when
working around gasoline or batteries.
• Use only a nonflammable solvent, not gasoline, to clean parts.
• Never store gasoline in an open container.
• Keep all cigarettes, sparks, and flames away from the battery and all fuel-related parts.

Advertisement

loading
Need help?

Need help?

Do you have a question about the WMP20X and is the answer not in the manual?

Questions and answers

Summary of Contents for Honda WMP20X

  • Page 1 Honda must determine the risks to his or her personal safety and the safe operation of this product. If you need to replace a part, use Honda Genuine parts with the correct part number or an equivalent part. We strongly recommend that you do not use replacement parts of inferior quality.
  • Page 4: Specifications

    WMP20X SPECIFICATIONS SPECIFICATIONS ......... 1-2 PERFORMANCE CURVES ......1-3...
  • Page 5 32 m (105 ft) Suction head 8 m (26 ft) Max dlscharae caoacitv 833 liters (220 US aal/min) Self-orimina time 65 sec at 5 m (16.4 ft) Continuous runnino time 2 hrs 15 min Revised: June 2007 (61YE0600/PSV50825-B) ©American Honda Motor Co., Inc.
  • Page 6: Performance Curves

    6 0 1- --- ----1--------,t----+----t------+--------1 � 401- --- ----1-- --- ---,t-- --- --t- - � -- -+- --- ----1 20t-- --- --t- --- --1 ---- -+- --- �� --- --1 DISCHARGE CAPACITY (gal/min) Revised: June 2007 (61YE0600/PSV50825-B) © American Honda Motor Co., Inc.
  • Page 10: Maintenance Standards

    WMP20X MAINTENANCE STANDARDS GX160K1 PART ITEM STANDARD SERVICE LIMIT Engine Maximum speed 3,900 + 150 rpm -------------------------------- Idle speed 1,400 ± 150 rpm -------------------------------- Cylinder compression 588 ~ 834 kPa (85 ~ 121 psi) at 600 rpm -------------------------------- Cylinder Sleeve ID 68.0 mm(2.68 in)
  • Page 19: Engine Oil

    WMP20X ENGINE OIL Change the engine oil with the engine warm and in a horizontal position to assure complete and rapid draining. Remove the oil filler cap/dipstick, drain bolt, and sealing washer. Allow the oil to drain completely. Reinstall the drain bolt and sealing washer and then tighten to the specified torque.
  • Page 38 WMP20X b. DISASSEMBLY/REASSEMBLY Revised: May 2011 (PSV61YE0600-C)
  • Page 39 WMP20X • PILOT SCREW AND LIMITER CAP REPLACEMENT Only remove the pilot screw and limiter cap when necessary for repair or to clean stubborn deposits from the pilot circuit passages. Removal of the limiter cap requires breaking the pilot screw. A new pilot screw and limiter cap must be installed.
  • Page 40 O-rings, floats, and float valve seats. Check the container for instructions. If you are in doubt, do not use these products to clean Honda carburetors. High air pressure may damage the carburetor. Use low pressure settings when cleaning passages and ports.
  • Page 51 WMP20X c. INSPECTION • VALVE SPRING FREE LENGTH Measure the free length of the valve springs. Standard Service limit 34.0 mm (1.34 in) 32.5 mm (1.28 in) Replace the springs if they are shorter than the service limit. • VALVE SEAT WIDTH Measure the valve seat width.
  • Page 57 GENERAL INFO #35 =>...
  • Page 67 SERVICE BULLETIN #4 =>...