Yamaha PW50Y Owner's Manual
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Yamaha PW50Y Owner's Manual

Yamaha motorcycle user manual
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Read this manual carefully before operating this vehicle.
OWNER'S MANUAL
PW50Y
LIT-11626-22-24
5PG-28199-18

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Summary of Contents for Yamaha PW50Y

  • Page 1 Read this manual carefully before operating this vehicle. OWNER’S MANUAL PW50Y LIT-11626-22-24 5PG-28199-18...
  • Page 2 EAU10042 Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
  • Page 3 Yamaha has met these standards without reducing the performance or economy of operation of the motorcycle. To maintain these high standards, it is important that you and your Yamaha dealer pay close attention to the recommended maintenance schedules and operating instructions contained within this manual.
  • Page 4 Your motorcycle was delivered with an adjustable speed limiter and power reduction plate. Yamaha recommends that all beginners start off with the speed limiter adjusting screw turned in and the power reduction plate installed in the exhaust man- ifold to limit the power available while they learn.
  • Page 5 Obtain qualified training in safe and proper riding techniques. Obtain professional technical service as indicated in this Owner’s Manual and/or when made necessary by mechanical conditions. INTRODUCTION...

  • Page 6: Important Manual Information

    IMPORTANT MANUAL INFORMATION Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
  • Page 7 IMPORTANT MANUAL INFORMATION EAU10193 PW50(Y) OWNER’S MANUAL ©2008 by Yamaha Motor Corporation, U.S.A. 1st edition, March 2008 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A. is expressly prohibited. Printed in Japan.

  • Page 8: Table Of Contents

    TABLE OF CONTENTS LOCATION OF IMPORTANT LABELS ...1-1 SAFETY INFORMATION ...2-1 DESCRIPTION ...3-1 Left view ...3-1 Right view ...3-2 Controls and instruments...3-3 INSTRUMENT AND CONTROL FUNCTIONS ...4-1 Handlebar switch ...4-1 Speed limiter and power reduction plate ...4-1 Front brake lever ...4-2 Rear brake lever ...4-3 Fuel tank cap ...4-3 Fuel ...4-3...
  • Page 9 CONSUMER INFORMATION...10-1 Identification numbers ...10-1 Motorcycle noise regulation ...10-2 YAMAHA MOTOR CORPORATION, U.S.A. OFF-ROAD MOTORCYCLE LIMITED WARRANTY ...10-3 YAMAHA EXTENDED SERVICE (Y.E.S.) ...10-5 TABLE OF CONTENTS...

  • Page 10: Location Of Important Labels

    Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement label is available from your Yamaha dealer.
  • Page 11 WARNING BEFORE YOU OPERATE THIS VEHICLE, READ THE OWNER’S MANUAL AND ALL LABELS. NEVER CARRY A PASSENGER. You increase your risk of losing control if you carry a passenger. NEVER OPERATE THIS VEHICLE ON PUBLIC ROADS. You can collide with another vehicle if you operate this vehicle on a public road. ALWAYS WEAR AN APPROVED MOTORCYCLE HELMET, eye protection, and protective clothing.

  • Page 12: Safety Information

    SAFETY INFORMATION Be a Responsible Owner As the vehicle’s owner, you are respon- sible for the safe and proper operation of your motorcycle. Motorcycles are single-track vehicles. Their safe use and operation are de- pendent upon the use of proper riding techniques as well as the expertise of the operator.
  • Page 13 cornering (insufficient lean angle for the speed). Never travel faster than warranted by conditions. Ride cautiously in unfamiliar ar- eas. You may encounter hidden obstacles that could cause an ac- cident. The posture of the operator is im- portant for proper control. The op- erator should keep both hands on the handlebar and both feet on the operator footrests during operation...
  • Page 14 Choosing accessories for your vehicle is an important decision. Genuine Yamaha accessories, which are avail- able only from a Yamaha dealer, have been designed, tested, and approved by Yamaha for use on your vehicle. Many companies with no connection to...
  • Page 15 ries are added to the handlebar or front fork area, they must be as lightweight as possible and should be kept to a minimum. Bulky or large accessories may seriously affect the stability of the motorcycle. Wind may at- tempt to lift the motorcycle, or the motorcycle may become un- stable in cross winds.

  • Page 16: Description

    DESCRIPTION Left view 1. Fuel cock (page 4-5) 2. Throttle stop screw (page 7-11) 3. Air filter element (page 7-9) 4. Kickstarter (page 4-6) 5. Centerstand (page 7-18) EAU10410...

  • Page 17: Right View

    Right view 1. Spark arrester (page 7-10) 2. Seat (page 4-7) 3. Transmission oil filler cap (page 7-8) 4. 2-stroke engine oil tank (page 4-5) DESCRIPTION EAU10420...

  • Page 18: Controls And Instruments

    DESCRIPTION Controls and instruments 1. Rear brake lever (page 4-3) 2. Starter (choke) lever (page 4-6) 3. 2-stroke engine oil tank cap (page 4-5) 4. Right handlebar switch (page 4-1) 5. Front brake lever (page 4-2) 6. Throttle grip (page 7-12) 7.

  • Page 19: Instrument And Control Functions

    EAU40660 Handlebar switch 1. Engine stop switch “OFF/RUN/START” EAU40674 Engine stop switch “OFF/RUN/ START” Set this switch to “START” before start- ing the engine. Set this switch to “RUN” after warming up the engine or before starting off. Set this switch to “OFF” to stop the engine.

  • Page 20: Front Brake Lever

    7 mm (0.28 in) turned out. When the screw is turned out to 7 mm (0.28 in), the throttle grip can only be opened ap- proximately halfway. If more power is required, please consult a Yamaha dealer. EWA14630 WARNING...

  • Page 21: Rear Brake Lever

    EAU12950 Rear brake lever 1. Rear brake lever The rear brake lever is located on the left handlebar grip. To apply the rear brake, pull this lever toward the handle- bar grip. INSTRUMENT AND CONTROL FUNCTIONS EAU13182 Fuel tank cap 1.
  • Page 22 Recommended fuel: UNLEADED GASOLINE ONLY Fuel tank capacity: 2.0 L (0.53 US gal, 0.44 Imp.gal) Your Yamaha engine has been de- signed to use regular unleaded gaso- line with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of 91 or higher.

  • Page 23: Fuel Tank Breather Hose

    EAU13412 Fuel tank breather hose 1. Fuel tank breather hose Before operating the motorcycle: Check the fuel tank breather hose connection. Check the fuel tank breather hose for cracks or damage, and replace it if damaged. Make sure that the fuel tank breather hose is not blocked, and clean it if necessary.

  • Page 24: Starter (Choke) Lever "1

    INSTRUMENT AND CONTROL FUNCTIONS O (on) 1. Arrow mark pointing to “O” (on) With the lever in this position, fuel flows to the carburetor. Normal riding is done with the lever in this position. EAU13590 Starter (choke) lever “ ” 1.

  • Page 25: Seat

    EAU40920 Seat To remove the seat 1. Remove the mudguard by remov- ing the bolts and washers. 1. Bolt 2. Mudguard 2. Pull the seat off. To install the seat 1. Insert the projection on the front of the seat into the seat holder as shown.

  • Page 26: For Your Safety - Pre-Operation Checks

    Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer. Before using this vehicle, check the following points:...

  • Page 27: Pre-Operation Check List

    Adjust if necessary. Make sure that operation is smooth. Check cable free play. Throttle grip If necessary, have Yamaha dealer adjust cable free play and lubricate cable and grip housing. Make sure that operation is smooth. Control cables Lubricate if necessary.
  • Page 28 FOR YOUR SAFETY – PRE-OPERATION CHECKS ITEM Centerstand Chassis fasteners Engine stop switch CHECKS Make sure that operation is smooth. Lubricate pivot if necessary. Make sure that all nuts, bolts and screws are properly tightened. Tighten if necessary. Check operation. PAGE 7-18 —...

  • Page 29: Operation And Important Riding Points

    This model is designed for off-road use only. Become thor- oughly familiar with all operat- ing controls and their functions before riding. Consult a Yamaha dealer regarding any control or function that you do not thor- oughly understand. Never start the engine or oper- ate it in a closed area for any length of time.

  • Page 30: Starting Off

    OPERATION AND IMPORTANT RIDING POINTS Starting off Before starting off, allow the engine to warm up. 1. While applying the rear brake le- ver, push the motorcycle off the centerstand. 2. Completely close the throttle. 3. Set the engine stop switch to “RUN”.

  • Page 31: Engine Break-In

    Be sure to inspect and make ad- justments thoroughly, especially cables. In addition, check all fittings and fasteners for looseness, and tighten if necessary. ECA10270 NOTICE If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the vehicle.

  • Page 32: Parking

    OPERATION AND IMPORTANT RIDING POINTS Parking When parking, stop the engine, and then turn the fuel cock lever to “S” (stop). WARNING Since the engine and exhaust system can become very hot, park in a place where pedestri- ans or children are not likely to touch them and be burned.

  • Page 33: Periodic Maintenance And Adjustment

    If you are not familiar with vehicle ser- vice, have a Yamaha dealer perform service. EWA15121 WARNING Turn off the engine when performing...

  • Page 34: Owner's Tool Kit

    If you do not have the tools or experi- ence required for a particular job, have a Yamaha dealer perform it for you. EAU17311...

  • Page 35: Periodic Maintenance Chart For The Emission Control System

    Periodic maintenance chart for the emission control system From 18 months, repeat the maintenance intervals starting from 6 months. Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.

  • Page 36: General Maintenance And Lubrication Chart

    PERIODIC MAINTENANCE AND ADJUSTMENT General maintenance and lubrication chart ITEM Front brake Rear brake Wheels Tires Wheel bearings Steering bearings Middle and final gear cases Chassis fasteners Autolube pump CHECK OR MAINTENANCE JOB Check operation. Adjust brake lever free play. Replace brake shoes.
  • Page 37 Apply lithium-soap-based grease lightly. Shock absorber Check operation and for oil leakage. assemblies Replace if necessary. Apply Yamaha chain and cable lube or engine oil Control cable 10W-30 lightly. Check operation and free play. Throttle grip housing Apply Yamaha chain and cable lube or engine oil and cable 10W-30 lightly.

  • Page 38: Checking The Spark Plug

    If the spark plug shows a distinctly dif- ferent color, the engine could be oper- ating improperly. Do not attempt to diagnose such problems yourself. In- stead, have a Yamaha dealer check the vehicle. 2. Check the spark plug for electrode erosion and excessive carbon or other deposits, and replace it if necessary.

  • Page 39: Removing The Power Reduction Plate

    then wipe off any grime from the spark plug threads. 3. Install the spark plug with the spark plug wrench, and then tight- en it to the specified torque. Tightening torque: Spark plug: 20 Nm (2.0 m·kgf, 14.5 ft·lbf) If a torque wrench is not available when installing a spark plug, a good estimate of the correct torque is 1/4–1/2 turn past finger tight.

  • Page 40: Transmission Oil

    Transmission oil The transmission oil must be checked for oil leakage before each ride. If any leakage is found, have a Yamaha deal- er check and repair the motorcycle. In addition, the transmission oil must be changed at the intervals specified in the periodic maintenance and lubrication chart.

  • Page 41: Middle And Final Gear Cases

    Middle and final gear cases The middle and final gear cases must be checked for grease leakage before each ride. If any leakage is found, have a Yamaha dealer check and repair the motorcycle. addition, have Yamaha dealer check and lubricate the...

  • Page 42: Cleaning The Spark Arrester

    PERIODIC MAINTENANCE AND ADJUSTMENT not dripping. Recommended oil: Yamaha foam air filter oil or other quality foam air filter oil 5. Insert the sponge material into the air filter case. NOTICE: Make sure that the sponge material is prop- erly seated in the air filter case.

  • Page 43: Adjusting The Carburetor

    Therefore, most car- buretor adjustments should be left to a Yamaha dealer, who has the neces- sary professional knowledge and expe- rience. The adjustment described in the following section, however, may be ser- viced by the owner as part of routine maintenance.

  • Page 44: Checking The Throttle Cable Free Play

    The throttle cable free play should mea- sure 1.5–3.5 mm (0.06–0.14 in) at the throttle grip. Periodically check the throttle cable free play and, if neces- sary, have a Yamaha dealer adjust it. 7-12 EAU40911 Tires To maximize the performance, durabil-...
  • Page 45 Yamaha dealer, who has necessary professional knowledge and experience. It is not recommended to patch a punctured tube. If unavoid-...

  • Page 46: Panel Wheels

    The wheel rims should be checked for cracks, bends, warpage or damage before each ride. If any damage is found, have a Yamaha dealer replace the wheel. Do not attempt even the smallest repair to the wheel. A deformed or cracked wheel must be replaced.

  • Page 47: Adjusting The Front And Rear Brake Lever Free Play

    (b). Front 1. Brake lever free play adjusting nut 7-15 Rear 1. Brake lever free play adjusting nut EWA10650 WARNING If proper adjustment cannot be ob- tained as described, have a Yamaha dealer make this adjustment.

  • Page 48: Checking The Front And Rear Brake Shoes

    If a cable is damaged or does not move smoothly, have a Yamaha dealer check or replace it. WARNING! Damage to the outer housing of cables may result in in- ternal rusting and cause interfer- ence with cable movement.

  • Page 49: Checking And Lubricating The Throttle Grip And Cable

    PERIODIC MAINTENANCE AND ADJUSTMENT EAU23120 Adjusting the Autolube pump The Autolube pump is a vital and so- phisticated component of the engine, which must be adjusted by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart. 7-17...

  • Page 50: Checking And Lubricating The Centerstand

    7-18 EAU42081 NOTICE If any damage is found or the front fork does not operate smoothly, have a Yamaha dealer check or re- pair it. ECA10590...

  • Page 51: Checking The Steering

    2. Hold the lower ends of the front fork legs and try to move them for- ward and backward. If any free play can be felt, have a Yamaha dealer check or repair the steering. PERIODIC MAINTENANCE AND ADJUSTMENT EAU23290...
  • Page 52 PERIODIC MAINTENANCE AND ADJUSTMENT 1. Brake lever free play adjusting nut 2. Brake camshaft lever 3. Washer 4. Axle nut 5. Brake cable 3. Remove the axle nut and washer. 4. Pull the wheel axle out, and then remove the wheel. 1.

  • Page 53: Rear Wheel

    8. Push down hard on the handlebar several times to check for proper fork operation. PERIODIC MAINTENANCE AND ADJUSTMENT EAU25080 Rear wheel EAU41082 To remove the rear wheel EWA10821 WARNING To avoid injury, securely support the vehicle so there is no danger of it falling over.
  • Page 54 PERIODIC MAINTENANCE AND ADJUSTMENT 5. Remove the exhaust chamber bolt and washers. 6. Remove the exhaust manifold bolts, and then remove the ex- haust chamber. 1. Exhaust manifold bolt 7. Remove the right-side rear shock absorber mounting bolt and then tilt the rear shock absorber upward as shown.
  • Page 55 sorber by installing the mounting bolt. 6. While applying the rear brake, tighten the axle nut to the specified torque. 7. Tighten the rear arm nuts and rear shock absorber mounting bolt to the specified torques. Tightening torques: Axle nut: 60 Nm (6.0 m·kgf, 43.4 ft·lbf) Rear arm nut: 28.5 Nm (2.9 m·kgf, 20.6 ft·lbf)

  • Page 56: Troubleshooting

    However, should your motorcycle require any repair, take it to a Yamaha dealer, whose skilled technicians have the necessary tools, experience, and know-how to service the motorcycle properly.

  • Page 57: Troubleshooting Chart

    Have a Yamaha dealer check the vehicle. Wipe off with a dry cloth and correct the spark plug gap, or replace the spark plug. Have a Yamaha dealer check the vehicle. 7-25 EAU25972 Open the throttle halfway and operate the kickstarter.

  • Page 58: Motorcycle Care And Storage

    Matte color caution NOTICE Some models are equipped with matte colored finished parts. Be sure to consult a Yamaha dealer for advice on what products to use be- fore cleaning the vehicle. Using a brush, harsh chemical products or cleaning compounds when cleaning these parts will scratch or damage their surface.
  • Page 59 cleaning products, solvent or thinner, fuel (gasoline), rust re- movers or inhibitors, brake flu- id, antifreeze or electrolyte. Do not use high-pressure wash- ers or steam-jet cleaners since they cause water seepage and deterioration in the following ar- eas: seals (of wheel and swing- arm bearings, fork and brakes), electric components (couplers, connectors,...

  • Page 60: Storage

    Avoid using abrasive polishing compounds as they will wear away the paint. Consult a Yamaha dealer for advice on what products to use. Storage ECA10800 Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover.
  • Page 61 install the spark plug and the spark plug cap. WARNING! To prevent damage or injury from sparking, make sure to ground the spark plug elec- trodes while turning the en- gine over. [EWA10951] 6. Lubricate all control cables and the pivoting points of all levers and pedals as well as of the center- stand.

  • Page 62: Specifications

    40.0 × 39.2 mm (1.57 × 1.54 in) Compression ratio: 6.00 :1 Starting system: Kickstarter EAU2633N Lubrication system: Separate lubrication (Yamaha autolube) Engine oil: Type: YAMALUBE 2 or 2-stroke engine oil (JASO FC grade) or (ISO EG-C or EG-D grade) Engine oil quantity: Quantity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
  • Page 63 Size: 2.50-10 4PR Manufacturer/model: BRIDGESTONE/KNOBBY Manufacturer/model: IRC/KNOBBY Loading: Maximum rider weight: 25.0 kg (55 lb) * (Total weight of rider, cargo and accessories) Tire air pressure (measured on cold tires): Front: 100 kPa (1.00 kgf/cm , 15 psi) Rear: 100 kPa (1.00 kgf/cm , 15 psi) Front wheel: Wheel type:...

  • Page 64: Consumer Information

    Record the vehicle identification num- ber and model label information in the spaces provided below for assistance when ordering spare parts from a Yamaha dealer or for reference in case the vehicle is stolen. VEHICLE IDENTIFICATION NUMBER: MODEL LABEL INFORMATION:...

  • Page 65: Motorcycle Noise Regulation

    Motorcycle noise regulation TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED: Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inoperative by any person other than for purposes of maintenance, repair, or replacement of any device or element of design incorporated into any new ve- hicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use or (2) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.

  • Page 66: Yamaha Motor Corporation, U.s.a. Off-Road Motorcycle Limited Warranty

    Covered off-road motorcycles are those units certified by Yamaha to EPA noise reg- ulations and come equipped from the factory with USDA-FS approved spark arresters.
  • Page 67 CONSUMER INFORMATION 10-4...

  • Page 68: Yamaha Extended Service (Y.e.s.)

    This excellent Y.E.S. plan coverage is only available to Yamaha owners like you, and only while your Yamaha is still within the Yamaha Limited Warranty period. So visit your authorized Yamaha dealer to get all the facts. He can show you how easy it is to protect your investment with Yamaha Extended Service.
  • Page 69 Yamaha Limited Warranty expires. A special note: If visiting your dealer isn’t convenient, contact Yamaha with your Primary ID number (your frame number). We’ll be happy to help you get the Y.E.S. coverage you need.
  • Page 70 INDEX Acceleration and deceleration... 6-2 Air filter element, cleaning... 7-9 Autolube pump, adjusting ... 7-17 Brake lever, front... 4-2 Brake lever, rear ... 4-3 Brake levers, lubricating... 7-17 Brake shoes, checking... 7-16 Braking... 6-2 Cables, checking and lubricating ... 7-16 Carburetor, adjusting ...
  • Page 72 YAMAHA MOTOR CO., LTD. PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2008.4–0.7×1 !

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