Page 88 of 400
1
2
a
b
A
1. Locknut 2. Spring preload adjusting nut
1. Contre-écrou 2. Écrou de réglage de la
précontrainte du ressort
1. Contratuerca 2. Tuerca de ajuste de la
precarga del muelle
A. Spring length
A. Longueur du ressort
A. Longitud del resorte
4-31
Adjust the spring preload as follows.
1. Loosen the locknut.
2. Turn the adjusting nut in direction ato
increase the spring preload and in direction
bto decrease the spring preload.
3. The length of the spring (installed) changes
1.5 mm per turn of the adjusting nut.
NOTE:
A special wrench can be obtained at a Yamaha
dealer to make this adjustment.
4. Tighten the locknut to the specified torque.
Tightening torque:
54 Nm (5.4 m0kgf)
Measurement A:
Installed length:
Minimum (hard): 213.5 mm
Standard: 220.5 mm
Maximum (soft): 228.5 mm
Page 330 of 400
8-85
EBU11920
Parking brake adjustment
Parking brake adjustment may be required if the
parking brake does not hold properly. The cable
length “A” should be adjusted to 46–50 mm.
1. Fully loosen the locknut and the adjusting
bolt at the clutch lever.
2. Loosen the locknut and the adjusting bolt at
the rear brake caliper.
3. Turn the adjusting bolt at the clutch lever in
directionato increase the cable length or
in direction bto decrease the cable length.
NOTE:
If the cable cannot be adjusted to specification,
consult a Yamaha dealer.
4. Tighten the locknut at the clutch lever.
A
a
b 1
2
A. Cable length
A. Longueur du câble
A. Longitud del cable
1. Locknut 2. Adjusting bolt
1. Contre-écrou 2. Boulon de réglage
1. Contratuerca 2. Perno de ajuste
Page 380 of 400
10-1
Model YFZ350
Dimensions:
Overall length 1,855 mm
Overall width 1,100 mm
Overall height 1,080 mm
Seat height 800 mm
Wheelbase 1,280 mm
Ground clearance 135 mm
Minimum turning radius 3,600 mm
Basic weight:
With oil and full fuel tank 187 kg
Engine:
Engine type Liquid-cooled 2-stroke
Cylinder arrangement Forward-inclined parallel 2-cylinder
Displacement 347 cm
3
Bore× stroke 64 ×54 mm
Compression ratio 6.5 : 1
Starting system Kick starter
Lubrication system Premix
EBU00428
SPECIFICATIONS