5.5hp Gasoline Engine 1)Single cylinder,4-stroke air-cooled,OHV 2)oil alert system 3)Max power output 5.5hp/4000rpm. 5.5hp gasoline engine Model168F(5.5HP)CertificateCEEngineEngine type4-stroke,single 25°cylinder, forced air-cooled Displacement(ml)163ml Borexstroke(mmxmm)68mmx45mmCompression ratio8.5:1Max power output4.0kw/3600rpmRecommded power using3.4kw/3600rpmMax torque10N.m/2500rpmIgnition ...