Type 4-stroke, 25 degree inclined air-cooled 4-stroke, 25 degree inclined air-cooled 4-stroke, 25 degree inclined , air-cooled 4-stroke, 25 degree inclined , air-cooled 4-stroke, 25 degree inclined air-cooled 4-stroke, 25 degree inclined air-cooled
Bore x stroke mm 68x45 68x58 73x58 77x58 82x64 88x64
Displacement 163 196 242 270 337 389
Compression ratio 8.5:1 8.5:1 8.2:1 8.2:1 8:1 8:1
Rated output HP/rpm 4.5/3600 5.5/3600 6.5/3600 8/3600 9/3600 10.5/3600
Max. output HP/rpm 5/3600 6/3600 7/3600 8.8/3600 10/3600 12/3600
Max. torque kg.m/rpm 1.1/2500 1.35/2500 1.7/2500 1.95/2500 2.4/2500 2.7/2500
Output direction of power shaft Counter- clockwise Counter- clockwise Counter- clockwise Conuter- clockwise Counter- clockwise Counter- clockwise
Ignition system TCI (Transistorized pointless)             TCI
Start system Recoil Recoil Recoil/electric Recoil/ele. Recoil/ele. Recoil/ele.
Engine oil capacity L 0.6 0.6 1.1 1.1 1.4 1.4
Fuel tank capacity L 3.7 3.7 6 6 6.5 6.5
Dimensions (LxWxH) mm 312x362x335 313x376x335 380x430x410 380x430x410 405x450x443 405x450x443
Dry weight kg 15 16 25 25 31 31

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