(OKJ) ME KJ
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For the OK Junior class
An engine full of new solutions.
New engine with architecture designed to keep the overall dimensions and weights to a minimum.
Engine Information
| Cilindrata | 125 cc |
| Homologation | 032-EJ-52 |
| Category | 125 OK/JUNIOR |
| Bore/stroke | 54 x 54,40 mm |
| Max power | n.d. |
| Max rpm | 14000 rpm |
| Cooling | Water |
| Ignition | PVL |
| Inlet type | Reed Valve |
| Carburetor | 20mm a farfalla (omologato) |
| Connecting rod length | 104 mm |
| Combustion chamber vol. | Minimo 12 cc (homologated) |
| 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 | Homologated |
| petrol mixture | 4% |
| Dry weight | 8 kg |