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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.
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10-1
EBU00428
SPECIFICATIONS
Model YFM400FA
Dimensions:
Overall length 1,984 mm
Overall width 1,085 mm
Overall height 1,120 mm
Seat height 827 mm
Wheelbase 1,233 mm
Ground clearance 245 mm
Minimum turning radius 3,000 mm
Basic weight:
With oil and full fuel tank 265 kg
Noise and vibration level:
Noise level (77/311/EEC) (for Europe) 77.2 dB(A)
Vibration on seat (EN1032, ISO5008) (for Europe) Will not exceed 0.6 m/s
2
Vibration on handlebar (EN1032, ISO5008)
(for Europe)Will not exceed 2.5 m/s
2
Engine:
Engine type Liquid-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 401 cm
3
Bore
× stroke 84.5
× 71.5 mm
Compression ratio 10.5 :1
Starting system Electric and recoil starter
Lubrication system Wet sump
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10-5
Suspension:
Front suspension Double wishbone
Rear suspension Swingarm (monocross)
Shock absorber:
Front shock absorber Coil spring / oil damper
Rear shock absorber Coil spring / oil damper
Wheel travel:
Front wheel travel 160 mm
Rear wheel travel 180 mm
Electrical:
Ignition system DC-C.D.I.
Generator system A.C. magneto
Battery type YTX14AH (For Europe)
YTX20L-BS (For Oceania)
Battery voltage, capacity 12 V, 12 Ah (For Europe)
12 V, 18 Ah (For Oceania)
Headlight type: Krypton bulbModel YFM400FA
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10-6
Bulb voltage, wattage
× quantity:
Headlight 12 V, 30/30 W
× 2
Tail/brake light 12 V, 5/21 W
× 1
Meter lighting 14 V, 3 W
× 1
Neutral indicator light 12 V, 1.7 W
× 1
Reverse indicator light 12 V, 1.7 W
× 1
Coolant temperature warning light 12 V, 1.7 W
× 1
Four-wheel-drive indicator light 12 V, 1.7 W
× 1
Fuse:
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 AModel YFM400FA
U5TE61.book Page 6 Tuesday, May 6, 2003 4:40 PM