. . . . . . . . . . "4-Stroke" . . . . . . . "four-cycle engine" . "4 Stroke" . . "4-cycle" . . . . . . "four-strokes" . . . . . . . . . . "Four-stroke engine" . . "four-cycle" . . "valve clearance" . . . . . . "Four-stroke_engine#Diesel cycle" . . . . . "four-stroke petrol engines" . . . . . . . . . . . "Four stroke" . "4-stroke, single cycle single action" . . . "four stroke engine" . . . . . "rod/stroke ratio" . "four-stroke engines" . . "Four-stroke petrol engine" . . . "four-stroke cycle" . "internal combustion engine" . "four" . . "clearance" . . "5valve dohc" . . . . "diesel motor" . . "4-stroke combustion cycle" . . . . "petrol" . . . "Four" . "Four-stroke engine" . "four-stroke" . . . "four-stroke cycle gasoline engine" . "four-stroke piston engine" . . . . . . "4-cylinder" . . . "Four-Stroke" . . . "four stroke single cycle, single action" . . . . "4-strokes" . . . . . . . . . . . "four-stroke petrol engine" . . . . . . "4-stroke engines" . . . "four stroke cycle" . . . . . "four-stroke engine" . . "(four-stroke) piston engine" . . . . . . . . . . . "fourstroke" . "four stroke" . . "4-cycle engines" . . . . . . . . "4-stroke" . . "Four-stroke" . . . . . . . . . "Four-stroke_engine" . . "4 stroke" . .