Yamaha XS650H 1978 Supplementary Service Manual page 20

6) Lubrication chart
C. Chassis
1. FRAME
1) Frame design
2. STEERfNG SYSTEM
1) caster
2) Trail
3) Number and size of balls in steering head
upper race
Lower race
4) Steering lock to lock
3. FRONT SUSPENSION
1) Type
2) Damper type
3) Front fork spring
Free length
Wire diameter x winding diameter
Spring constant
41 Front fork travel
51 Inner tube O.D.
6) Front fork oil quantity and type
7) Distance from the top of inner tube oil level
without spring
4. REAR SUSPENSION
1)
Type
2) Damper type
3) Shock absorber travel
Double cradle, high tensile frame
115 mm (4.53 in)
19 pcs. l/4 in
19 pcs. l/4 in
42" each (L and R)
Telescopic fork
Oil damper, coil spring
482 mm (18.99 in)
4 x 24.5 mm IO.157 x 0.965 in)
0 - 100 mm (0 - 3.94 in)
150 mm (5.906 in)
35 mm (1.378 in)
169 cc (5.72 oz) each leg
Yamaha fork oil 1Owt or equivalent
Approx. 454 mm (17.9 in)
Swing arm
Oil damper, coil spring
80 mm (3.15 in)