User manual YAMAHA WHY50-2003

[. . . ] OWNER'S MANUAL YH50 5XS-F8199-E0 EAU04576 INTRODUCTION Welcome to the Yamaha world of motorcycling!As the owner of the YH50, you are benefiting from Yamaha's vast experience and newest technology regarding the design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability. Please take the time to read this manual thoroughly, so as to enjoy all advantages of your YH50. The owner's manual does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to safeguard yourself and others from trouble and injury. [. . . ] · Lubricate with lithium-soap-based grease. Every 24, 000 km Every 10, 000 km 12 * 13 Chassis fasteners Centerstand Front fork · Make sure that all nuts, bolts and screws are properly tightened. · Check operation and for oil leakage. 6 14 * 15 * 16 * 17 * 18 19 * 20 * Shock absorber assembly · Check operation and shock absorber for oil leakage. Carburetor Autolube pump Final transmission oil V-belt Front and rear brake switches · Adjust engine idling speed. · Check operation. 6-3 PERIODIC MAINTENANCE AND MINOR REPAIR ODOMETER READING (x 1, 000 km) NO. 21 22 * ITEM Moving parts and cables Lights, signals and switches · Lubricate. CHECK OR MAINTENANCE JOB 1 6 12 18 24 ANNUAL CHECK EAU03541* NOTE : The air filter needs more frequent service if you are riding in unusually wet or dusty areas. Hydraulic brake service · Regularly check and, if necessary, correct the brake fluid level. · Every two years change the brake fluid. · Replace the brake hoses every four years and if cracked or damaged. · · 6 6-4 PERIODIC MAINTENANCE AND MINOR REPAIR EAU01651 1 Checking the spark plug The spark plug is an important engine component, which should be checked periodically, preferably by a Yamaha dealer. Since heat and deposits will cause any spark plug to slowly erode, it should be removed and checked in accordance with the periodic maintenance and lubrication chart. In addition, the condition of the spark plug can reveal the condition of the engine. The porcelain insulator around the center electrode of the spark plug should be a medium-to-light tan (the ideal color when the scooter is ridden normally). If the spark plug shows a distinctly different color, the engine could be defective. Do not attempt to diagnose such problems yourself. Instead, have a Yamaha dealer check the scooter. ZAUM0369 ZAUM0370 1. Panel A EAU01777 EAUM0095 Removing and installing the panel 6 The panel shown above needs to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time the panel needs to be removed and installed. Panel A To remove the panel 1. (See page 3-8 for seat opening and closing procedures. ) 2. Remove the panel by pulling it up as shown. Insert the rear of the panel in the original position, and then push the front of the panel inward. . Close the seat. 6-5 PERIODIC MAINTENANCE AND MINOR REPAIR Clean the surface of the spark plug gasket and its mating surface, and then wipe off any grime from the spark plug threads. Tightening torque: Spark plug: 23 Nm (2. 3 m·kg) NOTE : 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. [. . . ] 8-1 Conversion table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 8 SPECIFICATIONS Specifications Model Dimensions: Overall length Overall width Overall height Seat height Wheelbase Minimum ground clearance Minimum turning radius Weight: Wet (with oil and a full fuel tank) Engine: Engine type Cylinder arrangement Displacement Bore x stroke Compression ratio Starting system type Lubrication system Engine oil: Type Classification Capacity YH50 1. 940 mm 685 mm 1. 105 mm 765 mm 1. 294 mm 125 mm 1. 800 mm 78 kg Air cooled, 2 strokes Single cylinder, horizontal 49. 2 cm3 40. 0 x 39. 2 7. 25:1 Electric and kick starter Separate lubrication (Autolube) Yamalube 2 or 2 strokes engine oil Jaso FC ou ISO EG-C, EG-D 1. 3 L Transmission oil: Type Capacity Périodic oil change Total amount Air filter type: Fuel: Recommended fuel Fuel tank capacity Carburetor: Type / quantity Manufacturer Spark plug: Type / Manufacturer Spark plug gap Clutch type: Transmission: Primary reduction system Primary reduction ratio Secondary reduction system Secondary reduction ratio Transmission type Operation SAE 10W30 type SE 0. 11L 0. 13L Wet type element Regular unleaded gasoline (RON 91 mini) 7L PY-12 GURTNER BR8HS / NGK 0. 6--0. 7 mm Dry, centrifugal automatic Helical gear 52/13 (4. 000) Spur gear 45/12 (3. 750) V-belt automatic Centrifugal automatic type 8 8-1 SPECIFICATIONS Chassis: Frame type Caster angle ((degree)) Trail Tires: Front: Type Size Manufacturer / Model Rear: Type Size Manufacturer / Model Maximum load * Air pressure (cold tire): Up to 90 Kg load* Front Rear 90 kg load -- maximum load * Front Rear Steel tube underbone 25° 101. 3 mm Tubeless 2 1/2-16 42M MICHELIN / M29S TT Tubeless 2 3/4-16 46M MICHELIN / M29S TT 182 Kg Wheels: Front Type Size Rear Type Size Brakes: Front Type Operation Type brake fluid Rear Type Operation Suspension: Front suspension Rear suspension Shock absorber: Front fork type Rear shock absorber assembly type Wheel travel: Front wheel travel Rear wheel travel Cast wheel 16 X MT 1. 60 Cast wheel 16 X MT 1. 85 Single disc brake Right hand operation DOT 4 Single drum brake Left hand operation Telescopic fork Unit swing Coil spring/oil damper Coil spring/oil damper 180 kpa 190 kpa 8 180 kpa 210 kpa * Total weight of rider, passenger, cargo and accessories. 80 mm 70 mm 8-2 SPECIFICATIONS Electrical: Ignition system type Charging system Battery Model Voltage/capacity Headlight type: C. D. I Flywheel magneto GM4-3B, YB4L-B, FB4L-B 12 V / 4 Ah Bulb Bulbs (voltage/wattage x quantity): Headlight 12V, 35W/35Wx1 Brake/brake light 12V, 5W/21Wx1 Turn signal light Front 12V, 10Wx2 Rear 12V, 10Wx2 Meter lights 12V, 1. 2Wx2 High beam indicator light 12V, 1. 2Wx1 Turn signal indicator light 12V, 1. 2Wx1 Oil warning light 12V, 2Wx1 8 Fuses: Main fuse 7. 5 A 8-3 SPECIFICATIONS EAU04513 Conversion table Conversion table All specification data in this manual are listed in SI and METRIC UNITS. Use this table to convert METRIC unit values to IMPERIAL unit values. Example: METRIC VALUE CONVERSION FACTOR 0. 03937 = IMPERIAL VALUE Distance Torque METRIC SYSTEM TO IMPERIAL SYSTEM Metric unit m·kgf m·kgf cm·kgf cm·kgf kg g km/h km m m cm mm cc (cm3) cc (cm3) L (liter) L (liter) kg/mm kgf/cm2 °C Conversion factor 7. 233 86. 794 0. 0723 0. 8679 2. 205 0. 03527 0. 6214 0. 6214 3. 281 1. 094 0. 3937 0. 03937 0. 03527 0. 06102 0. 8799 0. 2199 55. 997 14. 2234 1. 8 + 32 Imperial unit ft·lbf in·lbf ft·lbf in·lbf lb oz mi/h mi ft yd in in oz (IMP liq. ) cu·in qt (IMP liq. ) gal (IMP liq. ) lb/in psi (lbf/in2) °F Weight Speed 2 mm 0. 08 in Volume, Capacity Miscellaneous 8 8-4 EAU01039 CONSUMER INFORMATION Identification numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]