Engine Specifications – 15FMHS & 15FMHL
| Engine Type | In-line 2 |
| Displacement | 246cm³ |
| Bore x Stroke | 45.0 x 50.0mm |
| Compression ratio | 6.8:1 |
| Starting enrichment | Manual choke |
| Scavenging | Loop Charge |
| Fuel induction system | 1 Carburettors |
| Lubrication system | Pre-mixed Fuel and Oil |
| Oil-Fuel Mixing Ratio | 50:1 |
| Engine oil capacity | – |
| Ignition system | CDI |
| Ignition timing | ATDC 5.0 – BTDC 30.0 deg. |
| Spark plug | B7HS-10 |
| Alternator | 80 W |
| Cooling system | Raw-water, thermostatically controlled |
| Exhaust system | Through Propeller Boss |
| Dry weight | 36 – 38kg |
