YX 140 pit bike engine with Z40 racing camshaft

Yx140 engine with a high-performance camshaft – thanks to this camshaft, the engine pulls strongly from low revs right through the rev range and picks up revs more quickly. The engine is lighter than competing engines from other brands (e.g. Lifan 140 – 23 kg/YX140 18.6 kg). High-quality components make this engine very reliable and highly sought-after.

• engine type: 4-stroke, two-valve, oil-cooled
• designation: YX Z140
• displacement: 140 cc
• bore x stroke: 56×57
• starting: kick-start lever (16 mm)
• clutch type: wet, multi-plate, 5-plate
• gearbox: four-speed
• gear shift pattern: N-1-2-3-4
• power: 11.1 hp/ 9500 rpm
• torque: 10.2 N·m/ 800 rpm
• oil filter: integrated into the clutch cover
• engine weight without accessories, with oil: 18.6 kg