1972 Kawasaki Z1

 

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1972-1975 Kawasaki Z1 Full Specifications

Get to know the 1972-1975 Kawasaki Z1 in exquisite detail with our meticulously crafted motorcycle specifications tables.

Click or tap on a navigation pane below to find your way through our highly detailed, categorised 1972-1975 Kawasaki Z1 specifications.

 

1972-1975 Kawasaki Z1 Performance Specifications Table

AttributeValue
Standing start 1/4 mile12.0 seconds
Climbing ability30 o
Fuel consumption40 mpg (average)
Braking distance10.9728 m @ 31 mph
Minimum turing radius2,500 mm
 

1972-1975 Kawasaki Z1 Dimensions Specifications Table

AttributeValue
Overall length2,250 mm
Overall width820 mm
Overall height1,175 mm
Wheelbase1,490 mm
Ground clearance160 mm
Dry Weight230 kg (without fuel and fluids)
 

1972-1975 Kawasaki Z1 Frame Specifications Table

AttributeValue
Frame typeTubular, double cradle
Rake / Caster angle64 °
Trail length90 mm
 

1972-1975 Kawasaki Z1 Engine Specifications Table

AttributeValue
Power82 HP @ 8,500 rpm
Torque54.3 FT-LB @ 7,000 rpm
Engine capacity / displacement903 cc
Engine configurationDOHC 4-cylinder, transverse in-line 4-stroke, air-cooled
ArrangementTransverse in-line
Bore and Stroke66 mm x 66 mm
Compression ratio8.5 : 1
 

1972-1975 Kawasaki Z1 Cylinder Head Specifications Table

AttributeValue
Cylinder compression121 psi
Cylinder head warpage0.25 mm (service limit)
 

1972-1975 Kawasaki Z1 Valves and Springs Specifications Table

AttributeValue
Intake valve stem diameter6.965 mm - 6.980 mm
6.86 mm (service limit)
Intake valve stem bend0.5 mm (service limit)
Intake valve stem to guide clearance0.02 mm - 0.05 mm
0.10 mm (service limit)
Exhaust valve stem diameter6.955 mm - 6.970 mm
6.85 mm (service limit)
Exhaust valve stem to guide clearance0.03 mm - 0.06 mm
0.10 mm (service limit)
Intake valve spring free length39.3 mm (outer spring)
38.0 mm (outer spring service limit)
36.0 mm (inner spring)
35.0 mm (inner spring service limit)
Intake valve spring perpendicularity1.9 mm (service limit)
Exhaust valve spring free length39.3 mm (outer spring)
38.0 mm (outer spring service limit)
36.0 mm (inner spring)
35.0 mm (inner spring service limit)
Exhaust valve spring perpendicularity1.9 mm (service limit)
 

1972-1975 Kawasaki Z1 Camshaft and Timing Specifications Table

AttributeValue
Intake valve cam timingopens @ 30° BTDC @ 1.0 mm lift
closes @ 70° ABDC @ 1.0 mm lift
Intake cam lobe height36.26 mm - 36.34 mm
36.16 mm (service limit)
Exhaust valve cam timingopens @ 70° BBDC @ 1.0 mm lift
closes @ 30° ATDC @ 1.0 mm lift
Exhaust cam lobe height35.76 mm - 35.84 mm
35.66 mm (service limit)
Camshaft run-out0.10 mm (service limit)
 

1972-1975 Kawasaki Z1 Crankshaft Specifications Table

AttributeValue
Crankshaft run-out0.03 mm
0.10 mm (service limit)
 

1972-1975 Kawasaki Z1 Cylinder and Piston Specifications Table

AttributeValue
Cylinder bore diameter66.000 mm - 66.019 mm (bore)
66.10 mm (bore service limit)
Piston diameter65.93 mm - 65.95 mm (outer)
65.80 mm (outer service limit)
Top piston ring to groove clearance0.045 mm - 0.080 mm
0.18 mm (service limit)
Second piston ring to groove clearance0.010 mm - 0.050 mm
0.15 mm (service limit)
Piston pin diameter16.994 mm - 17.000 mm
16.96 mm (service limit)
Piston pin bore diameter17.0035 mm - 17.0115 mm
17.08 mm (service limit)
Top piston ring groove width1.50 mm - 1.52 mm
1.60 mm (service limit)
Second piston ring groove width1.50 mm - 1.52 mm
1.60 mm (service limit)
Top piston ring end gaps0.2 mm - 0.4 mm
0.7 mm (service limit)
Cylinder to piston clearance0.060 mm - 0.079 mm
Connecting rod big end side clearance0.3 mm - 0.4 mm
0.6 mm (service limit)
 

1972-1975 Kawasaki Z1 Clutch and Primary Drive Specifications Table

AttributeValue
Reduction ratio1.73 : 1 (97 / 56)
Clutch typewet multi disc
Clutch spring free length33.8 mm
32.3 mm (service limit)
Plate warpage0.30 mm (service limit
Friction plate thickness3.7 mm - 3.9 mm
3.4 mm (service limit)
 

1972-1975 Kawasaki Z1 Transmission Specifications Table

AttributeValue
Type5-speed, constant mesh, return shift
Gear ratio1st gear = 3.17 : 1 (38 / 12)
2nd gear = 2.19 : 1 (35 / 16)
3rd gear = 1.67 : 1 (35 / 21)
4th gear = 1.38 : 1 (29 / 21)
5th gear = 1.22 : 1 (28 / 23)
 

1972-1975 Kawasaki Z1 Final Drive Specifications Table

AttributeValue
Final driveChain drive
Final drive ratio2.33 : 1 (35 / 15)
Chain typeEK630S-TG endless-type
Number of chain links92 links
Length of 10 links165.5 mm
 

1972-1975 Kawasaki Z1 Lubrication Specifications Table

AttributeValue
System typeForced lubrication
Oil capacity3.3 litres (wet fill, includes filter)
4.0 litres (wet fill, excludes filter)
0.9 litres (tank volume)
Recommended oil approval ratingSE class
Oil viscositySAE 10W40
 

1972-1975 Kawasaki Z1 Fuel System Specifications Table

AttributeValue
Fuel tank capacity18 litres
 

1972-1975 Kawasaki Z1 Carburetion Specifications Table

AttributeValue
Carburetor typeVM 28SC
Pilot jet20
Main jet112.5
Needle jetP-8 mm
 

1972-1975 Kawasaki Z1 Ignition System Specifications Table

AttributeValue
Ignition timing1,500 rpm @ 5° BTDC to 3,000 rpm @ 40 ° BTDC
Spark plug typeNGK B-8ES
 

1972-1975 Kawasaki Z1 Front Suspension and Steering Specifications Table

AttributeValue
TypeTelescopic fork
Front axel travel140 mm
Recommended front fork oil gradeSAE 10W, non-detergent
Oil level455 mm (fork fully compressed, sping removed)
Oil volume169 ml (dry fill)
Spring free length495.5 mm
485 mm (service limit)
 

1972-1975 Kawasaki Z1 Rear Suspension Specifications Table

AttributeValue
TypeSwing arm
Rear axel travel80 mm
 

1972-1975 Kawasaki Z1 Front Brake Specifications Table

AttributeValue
Front brake typeDisc brake
Front master cylinder diameter14.000 mm - 14.043 mm (inner)
14.080 mm (inner service limit)
Front master piston diameter13.957 mm - 13.984 mm (outer)
13.900 mm (outer service limit)
Front caliper cylinder A diameter38.180 mm - 38.200 mm (inner)
38.215 mm (inner service limit)
Front caliper piston A diameter38.180 mm - 38.200 mm (outer)
38.105 mm (outer service limit)
 

1972-1975 Kawasaki Z1 Rear Brake Specifications Table

AttributeValue
Rear brake typeInternal expansion, leading-trailing
Rear disc diameter296 mm
Rear disc thickness7.0 mm
5.5 mm (service limit)
Rear disc run-out0.3 mm (service limit)
 

1972-1975 Kawasaki Z1 Wheels and Tyres Specifications Table

AttributeValue
Front wheel size19 inch
Front tyre size3.25-19 4PR
Front tyre pressure26 psi (cold)
Recommended front tyreDunlop F6
Front wheel axle run-out0.2 mm (service limit)
Front wheel rim axial run-out3 mm (service limit)
Front wheel rim radial run-out2 mm (service limit)
Rear wheel size18 inch
Rear tyre size4.00-18 4PR
Rear tyre pressure31 psi (cold)
Recommended rear tyreDunlop K-87
Rear wheel axle run-out0.2 mm (service limit)
Rear wheel rim radial run-out3 mm (service limit)
Rear wheel rim axial run-out2 mm (service limit)
 

1972-1975 Kawasaki Z1 Electrical Charging Specifications Table

AttributeValue
Battery typeYuasa
Battery voltage rating12 volts DC
 

1972-1975 Kawasaki Z1 Electrical Equipment Specifications Table

AttributeValue
Headlight12V 50W/35W high/low beam
Recommended headlightSemi-sealed
Tail / stop light12V 4/32 cp 8/23W
Front turn signal light12V 23W x 4
Rear turn signal light12V 23W x 4
Neutral indicator12V 3.4W
Turn signal indicator12V 3.4W
High beam indicator12V 3.4W
Oil pressure indicator12V 3.4W
 

 

 

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