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YAMAHA YZ490 1988

Ideal Fork Rate:
kg/mm ( N/mm)
Ideal Shock Rate:
kg/mm ( N/mm)
Stock Fork Spring Rate
0.376
Stock Shock Spring Rate
5.8
Bike Type
MX
Ideal Rider Weight
75 kg
Engine Specifications
2 Stroke Engine 490 cc
Forks Info

Fork Manufacturer

KYB Conventional 43 mm OD

Fork Dimensions

Compression Nut Torque
25 in-lb (0.29 kgf-m)

Fork Features

Twin Chamber Fork
No

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
130 mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
10 mm

Shocks Info

Shock Manufacturer

Soqi
46 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Length (Eye to Eye)
420 mm
Shock Travel
119 mm
Shock Shaft Outer Diameter
14 mm
Standard Sag
103 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
5 Weight

Shock Comments

SEND to Teknik 16mm shaft conversion (call)

Forks Info

Fork Manufacturer

KYB Conventional 43 mm OD

Fork Dimensions

Compression Nut Torque
25 in-lb (0.29 kgf-m)

Fork Features

Twin Chamber Fork
No

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
130 mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
10 mm