single-cylinder,4-stroke ,air-cooled ,OHV, Horizontal side shaft, ... -1DB-170FDB-177FDB-188F/FEDB-190FEngine modelSingle-cylinder,4-stroke,Air-cooled,OHV,Horizntal side Shaft,Auto-Speed ... gasoline engineBore×Stroke(mm)68×4568×4568×4570×5477×5888×6490 ... 151615152531 Air cleanerSemi-dry,dilbath,Double type single-cylinder,4-stroke, air-cooled ,OHV,Horizontal side shaft, Auto- ...