9-7
EBU00427
B. STORAGE
Long term storage (60 days or more) of your ma-
chine will require some preventive procedures to
guard against deterioration. After thoroughly
cleaning the machine, prepare for storage as fol-
lows:
1. Fill the fuel tank with fresh fuel and add fuel
stabilizer (if available).NOTE:Use of fuel stabilizer eliminates the need to drain
the fuel system. Consult a Yamaha dealer if the
fuel system is to be drained instead.2. Remove the spark plug, pour about one ta-
blespoon of SAE 10W30 or 20W40 motor oil
in the spark plug hole and reinstall the spark
plug. Ground the spark plug wire and turn the
engine over several times to coat the cylinder
wall with oil.
3. Lubricate all control cables.
4. Block up the frame to raise all wheels off the
ground.
EE.book Page 7 Tuesday, April 1, 2003 12:23 PM
10-1
EBU00428
1-SPECIFICATIONS
Model YFM660F
Dimensions:
Overall length 2,085 mm
Overall width 1,150 mm
Overall height 1,210 mm
Seat height 880 mm
Wheelbase 1,275 mm
Minimum ground clearance 275 mm
Minimum turning radius 3,200 mm
Basic weight:
With oil and full fuel tank 290 kg
Noise and vibration level:
Noise level (77/311/EEC) 80 dB (A)
Vibration on seat (EN1032, ISO5008) Not exceed 0.5 m/s
2
Vibration on handlebar (EN1032, ISO5008) 2.8 m/s
2
Engine:
Engine type Liquid-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 660 cm
3
Bore
× stroke 100
× 84 mm
EE.book Page 1 Tuesday, April 1, 2003 12:23 PM
10-5
Tire:
Type Tubeless
Size (front) AT25
× 8-12
(rear) AT25 ×10 - 12
Brake:
Front brake type Dual disc brake
operation Right hand operation
Rear brake type Single disc brake
operation Left hand and right foot operation
Suspension:
Front suspension Double wishbone
Rear suspension Double wishbone
Shock absorber:
Front shock absorber Coil spring / Oil damper
Rear shock absorber Coil spring / Oil damper
Wheel travel:
Front wheel travel 170 mm
Rear wheel travel 225 mm
Electrical:
Ignition system DC. C.D.I.
Generator system A.C. magneto
Battery type YTX20L-BS
Battery capacity 12 V, 18 AhModel YFM660F
EE.book Page 5 Tuesday, April 1, 2003 12:23 PM
10-6
Headlight type: Krypton bulb
Bulb voltage, wattage
× quantity:
Headlight 12 V, 30 W / 30 W
× 2
Tail/brake light 12 V, 5 W / 21 W
× 1
Indicator light:
Neutral indicator light LED
× 1
Reverse indicator light LED
× 1
Coolant temperature warning light LED
× 1
Park position indicator light LED
× 1
High gear position indicator light LED
× 1
Low gear position indicator light LED
× 1
Differential gear lock indicator light LED
× 1
Fuses:
Main fuse 30 A
Headlight fuse 15 A
Ignition fuse 10 A
Auxiliary DC jack fuse 10 A
Four-wheel drive fuse 3 A
Signaling system fuse 10 A
Odometer fuse (backup) 10 AModel YFM660F
EE.book Page 6 Tuesday, April 1, 2003 12:23 PM
