Single · model 158MI
SWM125
USD 523
125cc class
10.5 kW9500 rpm
10.0 N·m8000 rpm
32kg net
Architecture
- Configuration
- Single cylinder, four-stroke, water cooled
- Bore
- 58 mm
- Stroke
- 47.2 mm
- Displacement
- 124.6 cc
- Nominal class
- 125 cc
- Compression
- 12.0:1
- Valve gear
- Overhead camshaft
- Lubrication
- Pressure and splash
Output
- Max net power
- 10.5 kW / 9500 rpm
- Max torque
- 10.0 N·m / 8000 rpm
- Min fuel use
- ≤354 g/kWh
- Idle
- 1500 ± 150 rpm
- Idle emissions
- CO ≤ 2.5%, HC ≤ 250 ppm
- Starting
- Electric only
- Starting time
- ≤15 s
- Ignition
- ECU
- Ignition advance
- ECU
Transmission
- Clutch
- 4-post, 5-plate wet clutch
- Final drive
- Chain
- Gearbox
- Constant-mesh gears
- Shift pattern
- 6-speed international
- Primary ratio
- 3.35
- Gear ratios
- 1st 2.833, 2nd 2.066, 3rd 1.555, 4th 1.238, 5th 1.045, 6th 0.916
- Output sprocket
- 14 teeth
Service
- Net weight
- 32 kg
- Overall size
- 345 x 310 x 460 mm
- Fuel grade
- 93#
- Fuel system
- EFI
- Oil grade
- SG 10W-40
- Oil capacity
- 1.3 L
- Spark plug
- CR8E
- Oil pump
- Inner-outer rotor
- Magneto
- Permanent-magnet DC