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| Dimension | Z400 J1,J2 | Z500 B1,B2 |
| Overall lenght | 2150 mm | 2150 mm |
| Overall width | 740 mm | 740 mm |
| Overall height | 1095 mm | 1095 mm |
| Wheelbase | 1395 mm | 1395 mm |
| Ground clearance | 145 mm | 145 mm |
| Weight (dry) | 194 kg | 192 kg |
| Engine/gearbox unit | SAE 10/W40, 10/W50, 20/W40 or 20/W50 |
| Front forks | SAE 5/W20 |
| Final drive chain | Aerosol chain lubricant |
| Pivot points | High melting point grease or gear oil |
| Wheel bearings | High melting point grease |
| Z400 J1,J2 | Z500 B1,B2 | |
| Type | 4 cyl. dohc in line 4 stroke air cooled | 4 cyl. dohc in line 4 stroke air cooled |
| Bore | 52.0 mm | 55.0 mm |
| Stroke | 47.0 mm | 52.4 mm |
| Displacement | 399 cc | 497 cc |
| Compression ratio | 9.7 : 1 | 9.5 : 1 |
| Max. horsepower | 43 @ 9500 rpm | 52 @ 9000 rpm |
| Max torque | 3.5 kgm @ 7500 rpm | 4.5 kgm @ 7500 rpm |
| Crankcase | Aluminium alloy | Aluminium alloy |
| Cylinderblock | Aluminium alloy, steel liners | Aluminium alloy, steel liners |
| Cylinder head | Aluminium alloy | Aluminium alloy |
Find more details about the engine here.
