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The technical data for Russian motorbikes with a boxer engine.
All data based on original, technical literature.

 

M-72
Polish Ministry of Defence manual
1956

K-750W
Polish Ministry of Defence manual
1966

MW-750
Russian instruction manual
1967

MW-650M
Russian instruction manual
1967

Length with side-car:
 
Length without side-car:

93.7 in
(2380 mm)
83.9 in
(2130 mm)

94.5 in
(2400 mm)
85.6 in
(2200 mm)

94.5 in
(2400 mm)

95.7 in
(2430 mm)

Width with side-car:
 
Width without side-car:

62.6 in
(1590 mm)
32.1 in
(815 mm)

65 in
(1650 mm)
32.3 in
(820 mm)

65 in
(1650 mm)

66.9 in
(1700 mm)

Height with side-car:
 
Height without side-car:

39.4 in
(1000 mm)
37.8 in
(960 mm)

41.7 in
(1060 mm)

41.7 in
(1060 mm)

43.3 in
(1100 mm)

Wheel base:

55.1 in
(1400 mm)

57.1 in
(1450 mm)

57.7 in
(1450 mm)

59.8 in
(1510 mm)

Track:

41.3 in
(1050 mm)

43.7 in
(1110 mm)

 

47.2 in
(1200 mm)

Seat height:

28.3 in
(720 mm)

 

28.3 in
(720 mm)

 

Clearance:

5.3 in
(135 mm)

5.7 in
(120 mm)

5.7 in
(120 mm)

4.9 in
(125 mm)

Weight with side-car:

6.9 cwt
(350 kg)
(with fuel and equipment)

7.3 cwt
(370 kg)
(with fuel and equipment)

6.8 cwt
(345 kg)
(without fuel)

7.3 cwt
(370 kg)

Load:

 

5.9 cwt
(300 kg)

5.9 cwt
(300 kg)

7.7 cwt
(390 kg)

Top speed with side-car:

52.8 mph
(85 km/h)

55.9 mph
(90 km/h)

55.9 mph
(90 km/h)

59 mph
(95 km/h)

Fuel consumption:

36.2 mpg
(7,8 l / 100 km)

47.1 mpg
(6 l / 100 km)

45.6 mpg
(6,2 l / 100 km)

33.2 mpg
(8,5 l / 100 km)

Oil consumption:

 

1130 mpg
(0,25 l / 100 km)

1130 mpg
(0,25 l / 100 km)

1883 mpg
(0,15 l / 100 km)

Engine:

Four stroke, petrol,
side-valve (sv), petrol,
air cooled

Four stroke, petrol,
side-valve (sv), petrol,
air cooled

Four stroke, petrol,
side-valve (sv), petrol,
air cooled

Four stroke, petrol, overhead valve (ohv), air cooled

Number of cylinders:

2,
opposed, horizontal

2,
opposed, horizontal

2,
opposed, horizontal

2,
opposed, horizontal

Bore:

3.07 in
(78 mm)

3.07 in
(78 mm)

3.07 in
(78 mm)

3.07 in (78 mm)

Stroke:

3.07 in
(78 mm)

3.07 in
(78 mm)

3.07 in
(78 mm)

2.68 in
(68 mm)

Engine capacity:

746 cc

746 cc

746 cc

649 cc

Compression ratio:

5,5 : 1

6,0 : 1

6,0 : 1

7,5 : 1

Power output:

22 b.h.p. at 4500-4800 rpm

26 b.h.p. at 4600-4900 rpm

26 b.h.p. at 4600-4900 rpm

36 b.h.p.

Torque:

 

30.38 lb. ft. at 3000 obr/min (4,2 kGm)

30.38 lb. ft. at 3000 obr/min (4,2 kGm)

34.72 lb. ft. (4,8 kGm)

Fuel system:

Two carburettors type K-37

Two carburettors type K-37A

Two carburettors type K-37A

Two carburettors type K-301D

Ignition system:

Battery 6V

Battery 6V
with distributor and manual ignition point adjustment or with dual ignition coil and automatic adjuster

Battery 6V
with distributor and manual ignition point adjustment or with dual ignition coil and automatic adjuster

Battery 12V
with dual ignition coil and automatic ignition point adjuster

Ignition advance angle / system:

Manual, 0o-38o before GMP

Manual or automatic centrifugal

Manual or automatic centrifugal

Automatic

Fuel:

Petrol

Petrol LO 70-76
(min LO 66)

Petrol LO 66-74

Petrol LO 72-76

Clutch:

Dry, dual plate

Dry, dual plate

Dry, dual plate

Dry, dual plate, dual actuated, by hand lever or automatically via foot gear change lever

Gearbox:

Four-speed, constant-mesh

Four-speed, constant-mesh, type 6204

Four-speed, constant-mesh
(later models with reverse)

Four-speed, constant-mesh, with reverse

1st gear ratio:

3,60

3,60

3,60

3,60

2nd gear ratio:

2,28

2,28

2,28

2,28

3rd gear ratio:

1,70

1,70

1,70

1,70

4th gear ratio:

1,30

1,30

1,30

1,30

Reverse gear

-

-

3,67

3,67

Drive:

Propeller shaft

Propeller shaft

Two propeller shafts driving rear wheel and side-car wheel with differential lock

Two propeller shafts driving rear wheel and side-car wheel with reduction gear

Final drive gear ratio:

4,62

4,62

4,62

4,62
(side-car reduction gear: 2,4)

Frame:

Tubular, steel

Tubular, steel

Tubular, steel

Tubular, steel

Front suspension:

Telescopic

Leading link type or telescopic in later models

Telescopic

Telescopic

Rear suspension:

Sliders, coil springs

Swing arm, coil springs and hydraulic shock absorbers

Swing arm, coil springs and hydraulic shock absorbers

Swing arm, coil springs and hydraulic shock absorbers, adjustable

Side-car suspension:

Leaf spring

Swing arm, coil spring and hydraulic shock absorber

Swing arm, coil spring and hydraulic shock absorber

Swing arm, coil spring and hydraulic shock absorber, adjustable

Tyres:

3.75 x 19

3.75 x 19

3.75 x 19

3.75 x 19

Tyre pressure – front:

23.5 psi
(1,6 kG/cm2)

23.5 psi
(1,6 kG/cm2)

22 psi
(1,5 kG/cm2)

22 psi
(1,5 kG/cm2)

Tyre pressure – rear:

29-37 psi
(2-2,5 kG/cm2)

29 psi
(2,0 kG/cm2)

29 psi
(2,0 kG/cm2)

37 psi
(2,5 kG/cm2)

Tyre pressure – side-car:

26.5 psi
(1,8 kG/cm2)

26.5 psi
(1,8 kG/cm2)

22 psi
(1,5 kG/cm2)

22 psi
(1,5 kG/cm2)

Front brake:

Drum type, mechanical, hand operated

Drum type, mechanical, hand operated

Drum type, mechanical, hand operated

Drum type, mechanical, hand operated with double expander cam

Rear brake:

Drum type, mechanical, foot operated

Drum type, mechanical, foot operated

Drum type, mechanical, foot operated

Drum type, mechanical, foot operated

Battery:

6V, 7 or 14 Ah

6V, 14 Ah

6V

2 x 6V, 6 Ah or 12V

Generator:

Dynamo type G-11
6V, 45 W

Dynamo
6V, 45 or 65 W

Dynamo
6V, 65 W

Alternator type G-424
12V, 150 W

Fuel tank capacity:

4.8 gal
(22 l)

4.8 gal
(22 l)

4.8 gal
(22 l)

4.2 gal
(19 l)

Engine oil capacity:

3.52 pt
(2 l)

3.52 pt
(2 l)

3.52 pt
(2 l)

3.87 pt
(2,2 l)

Gearbox oil capacity:

1.32 pt
(0,75 l)

1.41 pt
(0,8 l)

1.41 pt
(0,8 l)

2.64 pt
(1,5 l)

Final drive gear oil capacity:

0.44 pt
(0,25 l)

0.19 pt
(0,11 l)

0.35 pt
(0,2 l)

0.18 pt
(0,1 l)
(+ 0.18 pt (0,1 l) in differential & 0.35 pt (0,2 l) in reduction gear)

Front fork oil capacity:

2 x 0.18 pt
(2 x 0,1 l)

2 x 0.39 pt
(2 x 0,22 l)
2 x 0.18 pt
(2 x 0,1 l)

2 x 0.18 pt
(2 x 0,1 l)

2 x 0.23 pt
(2 x 0,13 l)

Shock absorber oil capacity:

-

 

 

0.185 pt (each)
(0,105 l)

Air filter oil capacity:

 

 

 

0.26 pt
(0,15 l)

Valve clearance (inlet & exhaust):

0.0039 in
(0,1 mm)

0.0039 in
(0,1 mm)

0.0039 in
(0,1 mm)

0.00275 in
(0,07 mm)

Contact breaker gap:

0.0157 – 0.0197 in
(0,4 – 0,5 mm)

0.0157 – 0.0236 in
(0,4 – 0,6 mm)

0.0157 – 0.0236 in
(0,4 – 0,6 mm)

0.0157 – 0.0236 in
(0,4 – 0,6 mm)

Sparking plugs gap:

0.0276 in
(0,7 mm)

0.0236 – 0.0276 in
(0,6 – 0,7 mm)

0.0236 – 0.0276 in
(0,6 – 0,7 mm)

0.0197 – 0.0256 in
(0,5 – 0,65 mm)

 
Overhead valve models from KMZ (Dniepr)
 

 

Dniepr K-650
User manual

Dniepr MT-9
User manual

Dniepr MT-11
User manual

Dniepr 16
User manual

Length:

 

 

 

95.7 in
(2430 mm)

Width:

 

 

 

66.9 in
(1700 mm)

Height:

 

 

 

42.5 in
(1080 mm)

Wheel base:

 

 

 

59.4 in
(1510 mm)

Track:

 

 

 

47.2 in
(1200 mm)

Clearance:

 

 

 

4.9 in
(125 mm)

Weight with side-car:

 

 

 

6.99 cwt
(355 kg)

Total permissible weight:

 

 

 

12.11 cwt
(615 kg)

Load:

 

 

 

5.12 cwt
(260 kg)

Top speed with side-car:

 

 

 

59 mph
(95 km/h)

Fuel consumption:

 

 

 

35.3 mpg
(8 l / 100 km)

Oil consumption:

 

 

 

1883 mpg
(0,15 l /100 km)

Engine:

 

 

 

Four stroke, petrol, overhead valve (ohv), air cooled

Number of cylinders:

 

 

 

2,
opposed, horizontal,

Bore:

 

 

 

3.071 in
(78 mm)

Stroke:

 

 

 

2.677 in
(68 mm)

Engine capacity:

 

 

 

649 cc

Compression ratio:

 

 

 

7,0 : 1 / 8,5 : 1

Power output:

 

 

 

32 b.h.p. at 5200 rpm

Torque:

 

 

 

34.72 lb. ft.
(4,8 kGm)

Fuel system:

 

 

 

Two carburettors type K-63T

Ignition system:

 

 

 

Battery 12V
with automatic ignition point adjuster

Fuel:

 

 

 

Petrol LO 72-76 / LO 93

Clutch:

 

 

 

Dry, double plate

Gearbox:

 

 

 

Four speed + reverse

1st gear ratio:

 

 

 

4,11

2nd gear ratio:

 

 

 

2,28

3rd gear ratio:

 

 

 

1,70

4th gear ratio:

 

 

 

1,30

Reverse gear ratio:

 

 

 

3,67

Drive:

 

 

 

Two propeller shafts driving rear wheel and side-car wheel with reduction gear

Final drive ratio:

 

 

 

4,62

Side-car reduction gear ratio:

 

 

 

2,40

Frame:

 

 

 

Tubular

Front suspension:

 

 

 

Telescopic

Rear suspension:

 

 

 

Swing arm, coil springs and hydraulic shock absorbers, adjustable

Side-car suspension:

 

 

 

Swing arm, coil spring and hydraulic shock absorber, adjustable

Tyres:

 

 

 

3.75 x 19

Tyre pressure – front:

 

 

 

22 – 23.5 psi
(1,5 – 1,6 kG/cm2)

Tyre pressure – rear:

 

 

 

37 – 38 psi
(2,5-2,6 kG/cm2)

Tyre pressure – side-car:

 

 

 

22 – 23.5 psi
(1,5 – 1,6 kG/cm2)

Front brake:

 

 

 

Drum type, mechanical, hand operated with double expander cam

Rear brake:

 

 

 

Drum type, mechanical, foot operated

Side-car brake:

 

 

 

Drum type, mechanical, foot operated, working in conjunction with rear brake

Battery:

 

 

 

12V, 9 Ah

Generator:

 

 

 

Alternator 12V, 150 W

Fuel tank capacity:

 

 

 

4.18 gal
(19 l)

Engine oil capacity:

 

 

 

3.87 pt
(2,2 l)

Gearbox oil capacity:

 

 

 

2.64 pt
(1,5 l)

Final drive oil capacity:

 

 

 

0.176 pt
(0,1 l)

Differential gear oil capacity:

 

 

 

0.176 pt
(0,1 l)

Reduction gear oil capacity:

 

 

 

0.352 pt
(0,2 l)

Front fork oil capacity:

 

 

 

2 x 0.176 pt
(2 x 0,1 l)

Sparking plug gap:

 

 

 

0.0197 – 0.0256 in / 0.0236 – 0.0295 in
(0,5-0,65 / 0,6-0,75 mm)

Contact breaker gap:

 

 

 

0.0157 – 0.0236 in
(0,4-0,6 mm)

Valve clearance (inlet and exhaust:

 

 

 

0.00275 in
(0,07 mm)

 

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GAZ 69
POLISH ARMY BIKES
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