| TYPE | HY160F | HY168F | HY173F | HY188F |
| Engine type | Brushless, self-excited, 2-pole, single-phase alternator/Automatic Voltage Regulator |
| Bore x stroke (mm) | 62 x 54 | 68 x 54 | 73 x 58 | 78 x 58 |
| Dispalcement capaciy (L) | 0.163 | 0.196 | 0.242 | 0.277 |
| Max. Output (kW) | 4 | 4.8 | 5.9 | 6.6 |
| Rated Output (kW) | 3.3kW/3600rpm | 4kW/3600rpm | 4.8kW/3600rpm | 5.9kW/3600rpm |
| Max. Torque (kg.m) | 1.1kg.m/2500rpm | 1.35kg.m/2500rpm | 1.7kg.m/2500rpm | 2kg.m/2500rpm |
| Fuel | Vehicle use and lead-less gaoline |
| Fuel oil rank volume (L) | 3.6 | 3.6 | 6 | 6 |
| Fuel oil consumption rate | 220g / ps.h | 220g / ps.h | 220g / ps.h | 220g / ps.h |
| Lubecation oil | SEA 10W30 machinery oil |
| Lubrication oil volume (L) | 0.6 | 0.6 | 0.8 | 0.8 |
| Starting System | Recoil and manual start | Recoil and manual start | Recoil and electric start | Recoil and electricstart |
| lgnition mode | TCI (transistor ignition) |
| Spark plug | BPR6ES (NGK) or W20EPR-U (DENSO) |
| Speed adjustment mechanism | Mechanical type |
| PTO rotation direction | It is clockwise as viewing from the flywheel end |
| New Weight (kg) | 14 | 16 | 20 | 21 |
