ENGINE

Cooling system and cycle

O.H.V., Air-cooled & 4 cycle

Number of cylinders and arrangement

One, rising angle of 10° from horizontal

Bore X stroke

49X46 mm (1.92X 1.76 in)

Total exhaust volume

86.7 cc

Compression ratio

8

Max. output

6.5 PS /8,000 r.p.m.

Max. torque

0.654 m-kg/6,000 r p m

(4.74 ft-lb/6 000 r p m )

Ignition method

Battery ignition

Ignition timing

25~35° before upper dead center

Spark plugs

NGKs D—6HW. Nippon Denso's X2OF

Battery

6V, 6AH (B108-6)

Carburettor

Keihin Seikis PW 1 8HA

Lubrication system

Forced lubrication

Oil pump

Gear type

Clutch
Transmission
Gear operation

Wet multi-plate type
Constant mesh gear type
4-speed return type operated by left
foot

Gear ratio
     1 st speed (Low)
     2nd speed (Second)
     3rd speed (Third)
     4th speed (Top)
Primary drive
Gear ratio for the above
Final drive

 
2540    total reduction ratio    (25.20)
1,610           ,,                             (16.00)
1,190           ,,                             (11.80)
0,960           ..                              ( 9.51)
Gears
3.12
Chain

Reduction ratio for the above

2.67

FRAME

Frame
Suspension
Brake
Handle length
Steering angle

Backbone type
Pivot type (front and rear)
Inside expanding type (front and rear)
625 mm (24.60 in)
43° for left and right

Caster
Trail
Tire size
Fuel tank capacity level

63.5°
75 mm (2.95 in)
2.17—17               (front and rear)
8.5 lit      (1.9 U.S. gal) (2.2 Imp gal)

MOTORCYCLE

Overall length
Overall width
Overall height
Distance between axles
Min. height above ground
Min. turning radius
Motorcycle weight
Max. speed
Fuel consumption

Climbing ability
Stopping distance

  1 ,805 mm (71 .06 in)
625 mm (24.61 in)
955 mm (37.60 in)
1,160mm (45.67 in)
135 mm (5.315 in)
1,660 mm (65.35 in)
85.5           kg (188.5 lb)
90 km/h (55.8 mph)
80 km/litre 150 (mile/lit) at cruising speed of 35 km/h (22 mph)

Sin 18º
6.5m (21.32 ft) stopping from the speed of 35 km/h (22 mph)