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high performance 400cc motorcycle oil-cooled engine 185YMQ
| Model | 185YMQ |
| Type | Single-cylinder, four-stroke, oil-cooled, lit, reverse |
| Cylinder diameter | 85 |
| Piston stroke | 70 |
| Working volume | 397.2 |
| Nominal Displacement | 400 |
| Compression ratio | 8.8: 1 |
| Starting way | Electricity |
| Ignition way | CDI |
| Ignition advance angle | 6 ° ~ 10 ° (≤ 1500r/min) 30 ° ~ 34 ° (≥ 4000r/min) |
| Gas distribution | Top-mounted camshaft |
| Lubrication method | Pressure splashed |
| Net mass | 40 |
| Dimensions | 358 × 324 × 458 |
| Maximum net power and speed | 20/6500 |
| Maximum torque and speed | 30/5500 |
| The lowest fuel consumption | ≤ 354 |
| Idling steady speed | 1500 ± 150 |
| Idling measurement of exhaust pollutants | CO ≤ 4.5%, HC ≤ 1200 × 10 -6 PPM |
| Starting performance | ≤ 15 |
| Clutch type | Wet multi-plate |
| Power output mode | Chain Drive |
| Transmission Type | Gear constant mesh |
| Primary speed ratio | 2.666 |
| Gear ratio | i1 = 2.615, i2 = 1.789, i3 = 1.35, i4 = 1.12 |
| Output sprocket number of teeth | 15 |
| Fuel type | 93 Ⅱ |
| Lubricant Brand | SJ 10W-30 |
| The LUB-OIL capacity | 2.2L |
| Spark plug model | DPR8Z |
| Lubricating oil pump type | Inner and outer rotor type |
| Magneto Type | Permanent magnet DC |
reverse gear can be added
high performance 400cc motorcycle oil-cooled engine 185YMQ