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1
2
a
b
A
1. Locknut 2. Spring preload adjusting nut1. 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 ressortA. 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 mm (0.04 in) per turn of the adjusting nut.
NOTE:
A special wrench can be obtained at a Yamaha
dealer.
4. Tighten the locknut to the specified torque.
Tightening torque:
54 Nm (5.4 m0kgf)
Installed length: Measurement A:
Minimum (hard): 213.5 mm
Standard: 220.5 mm
Maximum (soft): 228.5 mm
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8-85
EBU00953
Parking brake adjustment
Parking brake adjustment may be required if the
parking brake does not hold properly.
1. Fully loosen the parking brake cable
adjusting bolt locknut and the adjusting bolt
on the clutch lever.
2. Loosen the adjusting bolt locknut and the
adjusting bolt on the rear brake caliper.
3. Turn the adjusting bolt on the clutch lever
so that cable length ais 46–50 mm.
NOTE:
If the cable cannot be adjusted to specification,
consult a Yamaha dealer.
4. Tighten the adjusting bolt locknut on the
clutch lever.
5. Screw in the adjusting bolt on the brake
caliper by hand until it feels tight, then
screw it out 1/8 turn. Tighten the adjusting
bolt locknut to the specified torque.
q
w
1. Locknut 2. Adjusting bolt1. Contre-écrou 2. Boulon de réglage1. Contratuerca 2. Perno de ajuste
a
a. Cable lengtha. Longueur du câblea. Longitud del cable
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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
Minimum 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
5FK-9-64-9~11 4/8/02 2:35 PM Page 12