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B. STORAGE
Long term storage (60 days or more) of your
machine will require some preventive proce-
dures to guard against deterioration. After
thoroughly cleaning the machine, prepare for
storage as follows:
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
tablespoon of SAE 10W30 or 20W40 mo-
tor 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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SPECIFICATIONS
Model YFM400FA / YFM400FWAN
Dimensions:
Overall length 1,965 mm
Overall width 1,070 mm
Overall height 1,120 mm
Seat height 820 mm
Wheelbase 1,225 mm
Minimum ground clearance 245 mm
Minimum turning radius 3,000 mm
Basic weight:
With oil and full fuel tank 262 kg
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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Brake:
Front brake type Dual disc brake
operation Right hand operation
Rear brake type Single disk brake
operation Left hand and right foot operation
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 YTX20L-BS
Battery voltage, capacity 12 V, 18 AH
Headlight type: Krypton bulbModel YFM400FA / YFM400FWAN
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Bulb voltage, wattage
´
quantity:
Headlight 12 V, 30 W / 30 W
´
2
Taillight 12 V, 7.5 W
´
1
Neutral indicator light 12 V, 1.7 W
´
1
Reverse indicator light 12 V, 1.7 W
´
1
Coolant oil temperature warning light 12 V, 1.7 W
´
1
Park indicator light 12 V, 1.7 W
´
1
Four wheel drive indicator light 12 V, 1.7 W
´
1 Model YFM400FA / YFM400FWAN