Engine Specifications: 40XMHS, 40XMHL, 40XWL & 40XWTL
| Engine Type | In-line 2 |
| Displacement | 703cm³ |
| Bore x Stroke | 80.0 x 70.0mm |
| Compression ratio | 6.0:1 |
| Starting enrichment | Manual Choke |
| Scavenging | Loop Charge |
| Fuel induction system | 1 Carburettor |
| Lubrication system | Pre-mixed Fuel and Oil |
| Oil-Fuel Mixing Ratio | 50:1 (ZAF 100:1) |
| Engine oil capacity | – |
| Ignition system | CDI |
| Ignition timing | ATDC 2.0 – BTDC 23.0 deg. |
| Spark plug | B7HS |
| Alternator | MH: 80W (optional) W, WT: 6 A |
| Cooling system | Raw-water, thermostatically controlled |
| Exhaust system | Through Propeller Boss |
| Dry weight | 72 – 81kg |