... strocle,air cooled 2.china engine Type Forced air cooling,4-Stroke,OHV,single cylined by ... output) Valve Clearance Input valve0.10-0.15mm,output valve0.15-0.20mm Spark Plug Clearance 0.6-0.8mm lgnition ... ,Cyclone Type Dimension mm 385×325×365 Net Weight(kg) 15(18) HD168FD Gasoline Engine