(KZ) KK2
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For the KZ class
An engine full of new solutions.
The main innovations are:
- Architecture conceived to keep the overall dimensions and weights to a minimum.
- Changed crankcase cylinder position.
- Separate lubrication between gearbox and primary transmission.
- Water-cooled gearbox to lower the temperature of the lubricating oil and to contain the amount of oil.
- Dismountable head assembled by interference to improve heat exchange.
- New crankshaft with connecting rod length 110.2 mm
- New cylinder
- Reed pack with new flow guide
Engine Information
| Cilindrata | 125 cc |
| Homologation | 032-EZ-45 |
| Category | 125 KZ2/KZ1 |
| Bore/stroke | 54 x 54,43 mm |
| Max power | n.d. |
| Max rpm | 15000 rpm |
| Cooling | Water |
| Ignition | PVL |
| Transmission | 6 speed gearbox |
| Clutch | 5 dry disks |
| Inlet type | Reed Valve |
| Carburetor | Dell’Orto VHSH 30 |
| Connecting rod length | 110.2 mm |
| Combustion chamber vol. | Minimo 11 cc |
| Number of transfers | 5 |
| Number of exhaust ports | 3 |
| Main transfer opening | n.d. |
| Height of secondary ports | n.d. |
| Central pouring height | n.d. |
| Discharge height | n.d. |
| Expansion muffler | Expansion |
| petrol mixture | 4% |
| Dry weight | 18 kg |