FS-120S-E Owner's Instruction Manual Brandname: O.S. Engine Category: Engine Total Pages: 13 Table of contents Warnings2Introduction3ChokeValve4Needle-ValveExtension5Fuel6Carburettor7Running-InContinued8ValveAdjusting9CareandMaintenance10ExplodedView11CarburetorExplodedViews12Memo13