Honda CB Unicorn 160 Owner's Manual page 92

ENGINE
Bore and stroke
Compression ratio
Displacement
Spark plug
Standard
Spark plug gap
Idle speed
Valve clearance (Cold)
CHASSIS AND SUSPENSION
Caster
Trail length
Tyre size, front
Tyre size, rear
POWER TRANSMISSION
Primary reduction
Gear ratio,
Final reduction
86
57.30 x 63.096 mm (2.26x2.48 in)
10:1
162.71 cm
CPR8EA-9 (NGK)
0.8-0.9 mm (0.03-0.04 in)
1,400 ± 100 min
Intake
Exhaust 0.24 mm (0.009 in)
26˚
95 mm (3.7 in)
80/100-17 M/C 46P
110/80-17 M/C 57P
3.136
1st 3.076
2nd 1.789
3rd 1.300
4th 1.066
5th 0.916
2.866
(9.93 cu-in)
3
(rpm)
-1
0.08 mm (0.003 in)