Dimensions Single - Cylinder Twin - Cylinder Inline - Engines • 3W 28i • 3W 48iB2 / 56iB2 • 3W 110iR2 • 3W 55i • 3W 106iB2 / 110iB2   • 3W 55i US • 3W 120iB2F - 150iB2F   • 3W 55Xi    ( 2-Part Crankcase )   • 3W 80Xi / 85Xi • 3W 120iB2F - 150iB2F        ( 3-Part Crankcase )   Four - Cylinder • 3W 157Xib2 / 170Xib2   • 3W 200iB2   • 3W 112iB4 • 3W 210Xib2 TS   • 3W 212iB4 / 220iB4 • 3W 275Xib2 TS   • 3W 684iB4 • 3W 342iB2