ZH4100Y1 ZH4100Y2-3 ZH4102Y4 ZH4102Y4-2 model inline, water-cooled, four stroke modes of naturally aspirated combustion di * the diameter of the cylinder piston stroke 4-100*115 4-100*115 4-102*115 4-102*115 3.61 3.61 6.76 piston displacement 6.76 44/2200 b> 44/2200 46/2400 power 46/2400 cooling water-cooling start electric starting lubrication pressure and splash