Page 367 of 394
10-2
10
Noise and vibration level:
Noise level (77/311/EEC) 87.1 dB (A)
Vibration on seat (EN1032, ISO5008) Not exceed 0.5 m/s
2
Vibration on handlebar (EN1032, ISO5008) Not exceed 2.5 m/s
2
Engine oil/Transfer gear oil:
Type
Recommended engine oil classification: API Service SE, SF, SG type or higherModel YFM400FP/YFM400FW
-20˚-10˚0˚
10˚20˚30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
CAUTION:
In order to prevent clutch slippage (since the en-
gine oil also lubricates the clutch), do not mix any
chemical additives. Do not use oils with a diesel
specification of “CD” or oils of a higher quality
than specified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.
U4SH6A.book Page 2 Thursday, May 30, 2002 1:25 PM
Page 368 of 394
10-3
Quantity:
Periodic oil change (engine oil): 2.4 L
Periodic oil change
(engine oil with oil filter replacement): 2.5 L
Periodic oil change
(engine oil and transfer gear oil with
oil filter replacement):2.8 L
Transfer gear case oil 0.3 L
Total amount 3.7 L
Final gear oil:
Type SAE 80 API “GL-4” Hypoid gear oil
Quantity
Periodic oil change 0.19 L
Total amount 0.25 L
Air filter: Wet type element
Differential gear oil:
Type SAE80 API “GL-4” Hypoid gear oil
Quantity:
Periodic oil change 0.47 L
Total amount 0.5 LModel YFM400FP/YFM400FW
U4SH6A.book Page 3 Thursday, May 30, 2002 1:25 PM
Page 371 of 394
10-6
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 100 mm
Rear wheel travel 110 mm
Electrical:
Ignition system D.C. C.D.I.
Generator system A.C. magneto
Battery type YTX 20L-BS
Battery voltage, capacity 12 V, 18 AH
Headlight type: Bulb type
Bulb voltage, wattage
× quantity:
Headlight 12 V, 30 W / 30 W
× 2
Tail / brake light 12 V, 5 W / 21 W × 1
Meter light 14 V, 3 W
× 1
Indicator light:
Neutral 12 V, 1.7 W
× 1
Reverse 12 V, 1.7 W × 1
Oil temperature 12 V, 1.7 W
× 1 Model YFM400FP/YFM400FW
U4SH6A.book Page 6 Thursday, May 30, 2002 1:25 PM
