SPECIFICATIONS
9-1
9
Dimensions:Overall length:1245 mm (49.0 in)
Overall width:
575 mm (22.6 in)
Overall height: 715 mm (28.1 in)
Seat height: 485 mm (19.1 in)
Wheelbase:
855 mm (33.7 in)
Ground clearance: 105 mm (4.13 in)
Minimum turning radius: 1300 mm (51.2 in)Weight:Curb weight:39 kg (86 lb)
Technical permissible mass (Maximum load +
curb weight): 64 kg (141 lb)Noise and vibration level:Noise level (77/311/EEC):
PW50 75.1 dB(A)@2750 r/min
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)
(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)
(NOR)(POL)(PRT)(SVN)(SWE)
Vibration on seat (EN1032, ISO5008): PW50 Will not exceed 0.5 m/s²
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)
(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)
(NOR)(POL)(PRT)(SVN)(SWE) Vibration on handlebar (EN1032, ISO5008):
PW50 Will not exceed 2.5 m/s²
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)
(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)
(NOR)(POL)(PRT)(SVN)(SWE)
Engine:Engine type:
Air cooled 2-stroke
Cylinder arrangement: Single cylinder
Displacement: 49 cm³
Bore × stroke:
40.0 × 39.2 mm (1.57 × 1.54 in)
Compression ratio: 6.00 : 1
Starting system: Kickstarter
Lubrication system:
Separate lubrication (Yamaha autolube)Engine oil:Type:YAMALUBE 2S 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)Transmission oil:Type:YAMALUBE 4 (10W-40) or SAE 10W-40
Oil change quantity:
0.30 L (0.32 US qt, 0.26 Imp.qt)
Air filter:Air filter element:Wet elementFuel:Recommended fuel:PW50 Regular unleaded gasoline only
PW50D Unleaded gasoline only
PW50D1 Regular unleaded gasoline only
Fuel tank capacity:
2.0 L (0.53 US gal, 0.44 Imp.gal)Carburetor:Type × quantity:
VM12SC x 1Spark plug(s):Manufacturer/model: PW50 NGK/BP4HS (ZAF)
PW50 NGK/BPR4HS
(AUT)(BEL)(CHE)(DEU)(DNK)(ESP)
(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)
(NOR)(POL)(PRT)(SVN)(SWE)
PW50D NGK/BPR4HS
PW50D1 NGK/BPR4HS
Manufacturer/model: PW50 DENSO/W14FP-L (ZAF)
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:Wet, centrifugal automaticTransmission:Primary reduction ratio:1.909 (63/33)
Final drive: Shaft
U5PG8BE0.book Page 1 Wednesday, June 27, 2012 2:53 PM
SPECIFICATIONS
9-2
9
Secondary reduction ratio:6.218 (19/15 x 54/11)Chassis:Frame type:
Backbone
Caster angle: 25.50 °
Trail: 50 mm (2.0 in)Front tire:Type:With tube
Size: 2.50-10 4PR
Manufacturer/model:
PW50 (EUR)
BRIDGESTONE/KNOBBY PW50 (ZAF), PW50D, PW50D1
BRIDGESTONE/KNOBBY IRC/KNOBBY
Speed rating:
100 km/h (62 mph)Rear tire:Type:With tube
Size:
2.50-10 4PR
Manufacturer/model: PW50 (EUR)
BRIDGESTONE/KNOBBY PW50 (ZAF), PW50D, PW50D1
BRIDGESTONE/KNOBBY
IRC/KNOBBY Speed rating:
100 km/h (62 mph)
Loading:Maximum rider weight:
25.0 kg (55 lb)Tire air pressure (measured on cold
tires):
Front:100 kPa (1.00 kgf/cm², 15 psi)
Rear: 100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:Wheel type:
Panel wheel
Rim size: 10x1.50Rear wheel:Wheel type:
Panel wheel
Rim size: 10x1.50Front brake:Type:
Drum brake
Operation: Right hand operationRear brake:Type:
Drum brake
Operation: Left hand operationFront suspension:Type:
Telescopic fork Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 60.0 mm (2.36 in)
Rear suspension:Type:Unit swing
Spring/shock absorber type: Coil spring/oil damper
Wheel travel:
50.0 mm (1.97 in)Electrical system:Ignition system:CDI
U5PG8BE0.book Page 2 Wednesday, June 27, 2012 2:53 PM
INDEX
AAcceleration and deceleration ................ 6-2
Air filter element, cleaning ...................... 7-9
Autolube pump, adjusting ..................... 7-16BBrake lever, front .................................... 4-2
Brake lever, rear ..................................... 4-3
Brake levers, lubricating ....................... 7-17
Brake shoes, checking ......................... 7-15
Braking ................................................... 6-2CCable lock (for Europe)........................... 4-8
Cables, checking and lubricating .......... 7-16
Carburetor, adjusting ............................ 7-11
Care ........................................................ 8-1
Centerstand, checking and lubricating ..................... 7-17EEngine break-in ...................................... 6-3
Engine idling speed .............................. 7-11
Engine oil ................................................ 4-6
Engine, starting a warm .......................... 6-1
Engine stop switch.................................. 4-1FFront and rear brake lever free play, adjusting ............................................. 7-14
Front fork, checking .............................. 7-17
Fuel......................................................... 4-3
Fuel cock ................................................ 4-6
Fuel tank breather hose.......................... 4-5
Fuel tank cap .......................................... 4-3HHandlebar switch .................................... 4-1
IIdentification numbers ........................... 10-1KKickstarter ............................................... 4-7LLabels, location .......................................1-1MMaintenance and lubrication, periodic..... 7-4
Maintenance, emission control system ... 7-3
Matte color, caution .................................8-1
Middle and final gear cases .................... 7-9
Model label ............................................ 10-1PParking ....................................................6-4
Part locations .......................................... 3-1
Power reduction plate, removing............. 7-7SSafety information ...................................2-1
Seat ......................................................... 4-7
Spark arrester, cleaning ........................ 7-10
Spark plug, checking ...............................7-6
Specifications .......................................... 9-1
Speed limiter and
power reduction plate............................ 4-1
Starter (choke) lever................................ 4-7
Starting and warming up a cold engine ... 6-1
Starting off ............................................... 6-2
Steering, checking.................................7-18
Storage....................................................8-3TThrottle grip and cable,
checking and lubricating ..................... 7-16
Throttle grip free play, checking ............7-12
Tires ......................................................7-12 Tool kit .................................................... 7-2
Transmission oil ...................................... 7-8
Troubleshooting .................................... 7-23
Troubleshooting chart ........................... 7-24
VVehicle Emission Control Information
label (For Canada).............................. 10-2
Vehicle identification number ................ 10-1WWheel bearings, checking..................... 7-18
Wheel (front) ......................................... 7-19
Wheel (rear) .......................................... 7-20
Wheels .................................................. 7-14
U5PG8BE0.book Page 1 Wednesday, June 27, 2012 2:53 PM
