Yamaha XS650H 1978 Supplementary Service Manual page 22

7. BRAKE
1) Front brake
Type
Disc size (Outside dia. x thickness)
Disc wear limit
Disc pad thickness
Pad wear limit
Master cylinder inside dia.
Caliper cylinder inside dia.
Brake fluid type/Quantity
2) Rear brake
Type
Actuating method
Brake drum I.D.
Brake shoe dia. x width
Lining thickness/wear limit
Shoe spring free length
D. Electrical
1. IGNITION SYSTEM
1) Ignition timing (B.T.D.C.)
2) Ignition coil
Model/Manufacturer
Spark gap
Primary winding resistance
Secondary winding resistance
3) Spark plug
Type
Spark plug gap
2. CHARGING SYSTEM
A.C. generator
Charging output
Rotor coil resistance (Field coil)
Stator coil resistance
Brush length
Brush wear limit
type
Hydraulic disc
298 x 7.0 mm 11 1.73 x 0.28 in)
6.5 mm (0.26 in1
11.0 mm (0.43 inl
6.0 mm (0.24 in1
14.0 mm (0.55 ini
38.1 mm (1.50 in)
DOT #3 Brake fluid i38.1 cc Il.29 02)
Drum brake (Leading trailing)
Link rod
180 mm (7.09 ini
180 Y 30 mm 17.09 x 1.18 in)
4 mm12 mm IO.16 1nI0.08 in)
68 mm (2.68 inl
6 mm (0.24 in) or more at 500 rimin
N-7Y (CHAMPION) or BP7ES (N.G.K.)
0.7 - 0.8 mm (0.027 - 0.031 in)
14V 16Ai5.000 rlmin
14.5 mm (0.571 in)
7.0 mm (0.276 ini