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.
Performance Specifications Table
Attribute | Value |
---|
Standing start 1/4 mile | 12.0 seconds |
Climbing ability | 30 o |
Fuel consumption | 40 mpg (average) |
Braking distance | 10.9728 m @ 31 mph |
Minimum turing radius | 2,500 mm |
Dimensions Specifications Table
Attribute | Value |
---|
Overall length | 2,250 mm |
Overall width | 820 mm |
Overall height | 1,175 mm |
Wheelbase | 1,490 mm |
Ground clearance | 160 mm |
Dry Weight | 230 kg (without fuel and fluids) |
Frame Specifications Table
Attribute | Value |
---|
Frame type | Tubular, double cradle |
Rake / Caster angle | 64 ° |
Trail length | 90 mm |
Engine Specifications Table
Attribute | Value |
---|
Power | 82 HP @ 8,500 rpm |
Torque | 54.3 FT-LB @ 7,000 rpm |
Engine capacity / displacement | 903 cc |
Engine configuration | DOHC 4-cylinder, transverse in-line 4-stroke, air-cooled |
Arrangement | Transverse in-line |
Bore and Stroke | 66 mm x 66 mm |
Compression ratio | 8.5 : 1 |
Cylinder Head Specifications Table
Attribute | Value |
---|
Cylinder compression | 121 psi |
Cylinder head warpage | 0.25 mm (service limit) |
Valves and Springs Specifications Table
Attribute | Value |
---|
Intake valve stem diameter | 6.965 mm - 6.980 mm |
6.86 mm (service limit) | Intake valve stem bend | 0.5 mm (service limit) |
Intake valve stem to guide clearance | 0.02 mm - 0.05 mm |
0.10 mm (service limit) | Exhaust valve stem diameter | 6.955 mm - 6.970 mm |
6.85 mm (service limit) | Exhaust valve stem to guide clearance | 0.03 mm - 0.06 mm |
0.10 mm (service limit) | Intake valve spring free length | 39.3 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 perpendicularity | 1.9 mm (service limit) |
Exhaust valve spring free length | 39.3 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 perpendicularity | 1.9 mm (service limit) |
Camshaft and Timing Specifications Table
Attribute | Value |
---|
Intake valve cam timing | opens @ 30° BTDC @ 1.0 mm lift |
closes @ 70° ABDC @ 1.0 mm lift | Intake cam lobe height | 36.26 mm - 36.34 mm |
36.16 mm (service limit) | Exhaust valve cam timing | opens @ 70° BBDC @ 1.0 mm lift |
closes @ 30° ATDC @ 1.0 mm lift | Exhaust cam lobe height | 35.76 mm - 35.84 mm |
35.66 mm (service limit) | Camshaft run-out | 0.10 mm (service limit) |
Crankshaft Specifications Table
Attribute | Value |
---|
Crankshaft run-out | 0.03 mm |
0.10 mm (service limit) |
Cylinder and Piston Specifications Table
Attribute | Value |
---|
Cylinder bore diameter | 66.000 mm - 66.019 mm (bore) |
66.10 mm (bore service limit) | Piston diameter | 65.93 mm - 65.95 mm (outer) |
65.80 mm (outer service limit) | Top piston ring to groove clearance | 0.045 mm - 0.080 mm |
0.18 mm (service limit) | Second piston ring to groove clearance | 0.010 mm - 0.050 mm |
0.15 mm (service limit) | Piston pin diameter | 16.994 mm - 17.000 mm |
16.96 mm (service limit) | Piston pin bore diameter | 17.0035 mm - 17.0115 mm |
17.08 mm (service limit) | Top piston ring groove width | 1.50 mm - 1.52 mm |
1.60 mm (service limit) | Second piston ring groove width | 1.50 mm - 1.52 mm |
1.60 mm (service limit) | Top piston ring end gaps | 0.2 mm - 0.4 mm |
0.7 mm (service limit) | Cylinder to piston clearance | 0.060 mm - 0.079 mm |
Connecting rod big end side clearance | 0.3 mm - 0.4 mm |
0.6 mm (service limit) |
Clutch and Primary Drive Specifications Table
Attribute | Value |
---|
Reduction ratio | 1.73 : 1 (97 / 56) |
Clutch type | wet multi disc |
Clutch spring free length | 33.8 mm |
32.3 mm (service limit) | Plate warpage | 0.30 mm (service limit |
Friction plate thickness | 3.7 mm - 3.9 mm |
3.4 mm (service limit) |
Transmission Specifications Table
Attribute | Value |
---|
Type | 5-speed, constant mesh, return shift |
Gear ratio | 1st 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) |
Final Drive Specifications Table
Attribute | Value |
---|
Final drive | Chain drive |
Final drive ratio | 2.33 : 1 (35 / 15) |
Chain type | EK630S-TG endless-type |
Number of chain links | 92 links |
Length of 10 links | 165.5 mm |
Lubrication Specifications Table
Attribute | Value |
---|
System type | Forced lubrication |
Oil capacity | 3.3 litres (wet fill, includes filter) |
4.0 litres (wet fill, excludes filter) | 0.9 litres (tank volume) | Recommended oil approval rating | SE class |
Oil viscosity | SAE 10W40 |
Fuel System Specifications Table
Attribute | Value |
---|
Fuel tank capacity | 18 litres |
Carburetion Specifications Table
Attribute | Value |
---|
Carburetor type | VM 28SC |
Pilot jet | 20 |
Main jet | 112.5 |
Needle jet | P-8 mm |
Ignition System Specifications Table
Attribute | Value |
---|
Ignition timing | 1,500 rpm @ 5° BTDC to 3,000 rpm @ 40 ° BTDC |
Spark plug type | NGK B-8ES |
Front Suspension and Steering Specifications Table
Attribute | Value |
---|
Type | Telescopic fork |
Front axel travel | 140 mm |
Recommended front fork oil grade | SAE 10W, non-detergent |
Oil level | 455 mm (fork fully compressed, sping removed) |
Oil volume | 169 ml (dry fill) |
Spring free length | 495.5 mm |
485 mm (service limit) |
Rear Suspension Specifications Table
Attribute | Value |
---|
Type | Swing arm |
Rear axel travel | 80 mm |
Front Brake Specifications Table
Attribute | Value |
---|
Front brake type | Disc brake |
Front master cylinder diameter | 14.000 mm - 14.043 mm (inner) |
14.080 mm (inner service limit) | Front master piston diameter | 13.957 mm - 13.984 mm (outer) |
13.900 mm (outer service limit) | Front caliper cylinder A diameter | 38.180 mm - 38.200 mm (inner) |
38.215 mm (inner service limit) | Front caliper piston A diameter | 38.180 mm - 38.200 mm (outer) |
38.105 mm (outer service limit) |
Rear Brake Specifications Table
Attribute | Value |
---|
Rear brake type | Internal expansion, leading-trailing |
Rear disc diameter | 296 mm |
Rear disc thickness | 7.0 mm |
5.5 mm (service limit) | Rear disc run-out | 0.3 mm (service limit) |
Wheels and Tyres Specifications Table
Attribute | Value |
---|
Front wheel size | 19 inch |
Front tyre size | 3.25-19 4PR |
Front tyre pressure | 26 psi (cold) |
Recommended front tyre | Dunlop F6 |
Front wheel axle run-out | 0.2 mm (service limit) |
Front wheel rim axial run-out | 3 mm (service limit) |
Front wheel rim radial run-out | 2 mm (service limit) |
Rear wheel size | 18 inch |
Rear tyre size | 4.00-18 4PR |
Rear tyre pressure | 31 psi (cold) |
Recommended rear tyre | Dunlop K-87 |
Rear wheel axle run-out | 0.2 mm (service limit) |
Rear wheel rim radial run-out | 3 mm (service limit) |
Rear wheel rim axial run-out | 2 mm (service limit) |
Electrical Charging Specifications Table
Attribute | Value |
---|
Battery type | Yuasa |
Battery voltage rating | 12 volts DC |
Electrical Equipment Specifications Table
Attribute | Value |
---|
Headlight | 12V 50W/35W high/low beam |
Recommended headlight | Semi-sealed |
Tail / stop light | 12V 4/32 cp 8/23W |
Front turn signal light | 12V 23W x 4 |
Rear turn signal light | 12V 23W x 4 |
Neutral indicator | 12V 3.4W |
Turn signal indicator | 12V 3.4W |
High beam indicator | 12V 3.4W |
Oil pressure indicator | 12V 3.4W |
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