Page 130 of 436
5-5
EBU01167
Front and rear brakes
Brake lever and brake pedal
Check that there is no free play in the brake le-
ver. If there is free play, have a Yamaha dealer
inspect the brake system.
Check for correct brake pedal height. (See
pages 8-99–8-101.) If the pedal height is incor-
rect, have a Yamaha dealer adjust it.
Check the operation of the brake lever and
brake pedal. They should move smoothly and
there should be a firm feeling when the brakes
are applied. If not, have a Yamaha dealer in-
spect the brake system.
Brake fluid level
Check the brake fluid level. Add fluid if necessary.
(See pages 8-91–8-95.)
Recommended brake fluid: DOT 4
U5ND60.book Page 5 Friday, May 10, 2002 12:10 PM
Page 184 of 436
6-29
Do not exceed the maximum tongue weight.
You can measure tongue weight with a bath-
room scale. Put the tongue of the loaded trailer
on the scale with the tongue at hitch height. Ad-
just the load in the trailer, if necessary, to re-
duce the weight on hitch. If you are carrying
cargo and towing a trailer, include the tongue
weight in the maximum vehicle load limit.
Load cargo on the carrier as close to the center
of the vehicle as possible. Put cargo at the front
of the rear carrier. Center the load from side to
side.
Tie down cargo securely to the carriers. Make
sure cargo in the trailer cannot move around. A
shifting load can cause an accident.
Make sure the load does not interfere with con-
trols or your ability to see where you are going.
U5ND60.book Page 29 Friday, May 10, 2002 12:10 PM
Page 366 of 436
8-99 1. Locknut 2. Adjusting bolt
c. Free play
1. Contre-écrou 2. Boulon de réglage
c. Jeu
1. Contratuerca 2. Perno de ajuste
c. Juego libre
1. Brake pedal position
1. Position de la pédale de frein
1. Posición del pedal del freno
EBU00689
Rear brake lever adjustment
The rear brake lever free play should be 0.5–
2 mm.
1. Loosen the locknut.
2. Turn the adjusting bolt in direction
a to in-
crease free play, and in direction
b to de-
crease free play.
3. Tighten the locknut.
If correct free play cannot be obtained, ask a
Yamaha dealer to make that adjustment.
Rear brake pedal height adjustmentNOTE:Adjust the rear brake before inspecting the rear
brake pads.The top of the brake pedal should be positioned
75 mm above the top of the footrest. If not, ask a
Yamaha dealer to adjust it.
U5ND60.book Page 99 Friday, May 10, 2002 12:10 PM
Page 414 of 436
10-1
EBU00428
SPECIFICATIONS
Model YFM450FA
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 267 kg
Noise and vibration level:
Noise level (77/311/EEC) 79.7 dB(A)
Vibration on seat (EN1032, ISO5008) Not exceed 0.5 m/s
2
Vibration on handlebar (EN1032, ISO5008) 2.5 m/s
2
Engine:
Engine type Liquid-cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 421 cm
3
Bore
× stroke 84.5
× 75.0 mm
Compression ratio 10 :1
Starting system Electric and recoil starter
Lubrication system Wet sump
U5ND60.book Page 1 Friday, May 10, 2002 12:10 PM