Yamaha 2002 YFA1, Supplementary Service Manual

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SPEC
GENERAL SPECIFICATIONS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Model YFA1 (P) 2002
Model code number 3FAY (CDN, Europe and Oceania)
Engine:
Engine type Air-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 124 cm
3
Bore
×
stroke 49
×
66 mm (1.93
×
2.60 in)
Compression ratio 9.0 : 1
Compression pressure 850 kPa (8.5 kg/cm
2
, 121 psi) at 570 r/min
Starting system Electric starter
Transmission:
Primary reduction system Helical gear/spur gear
Primary reduction ratio 43/14
×
40/17 (7.226)
Secondary reduction system Chain drive
Secondary reduction ratio 32/12 (2.666)
Clutch type Dry, centrifugal automatic
Transmission type Single speed automatic (V-belt)
Operation Centrifugal automatic type
Single speed automatic 2.303 ~ 0.821
Reverse ratio 49/14
×
49/15
×
40/17 (26.902)
Tire:
Type Tubeless
Size
Front AT20
×
7–8
Rear AT22
×
10–8
Manufacturer (type)
Front DUNLOP (KT536A)
Rear DUNLOP (KT537A)
Wear limit 3.0 mm (0.12 in)
Electrical:
Ignition system CDI
Generator system A.C. magneto generator
Battery capacity 12 V 12 AH
Battery type 12N12C-4A-2
Headlight type Bulb type
Headlight bulb type Incandescence
Bulb wattage (quantity)
Headlight 12 V 25 W/25 W (1 pc.)
Tail/brake light 12 V 5 W/21 W (1 pc.)
Neutral indicator light 12 V 3.4 W (1 pc.)
Reverse indicator light 12 V 3.4 W (1 pc.)