... consumption 4:low noise 5:diesel engine Detailed Product DescriptioSingle cylinder,tilt,4-stroker,swirl,forcible air-cooled diesel engine 1: ... consumption 4:low noise 5:diesel engineenginemodelRZ178FRZ186FARZ2V820FRZ2V840FRZ2V870FtypeSingle cylinder,air cooled diesel engineTwo cylinder,air cooled diesel enginebore x stroke78x62mm 86x70mm86x72mm88x72mmdisplacement296ml418ml820ml840ml870mlcompression ...