four-stroking

1. four-stroking Noun. (automotive) A type of abnormal operation of a two-stroke internal combustion engine where the cylinder only fires every second cycle (like a four-stroke engine does). This occurs when the exhaust scavenging and inlet charging leaves a mixture in the cylinder which does not ignite, but needs a second scavenge/charge to produce an adequate mix.
two-stroke
1. Noun. (mechanical) As a determiner, of a type of internal combustion engine, the working cycle of which is completed during two strokes of the piston.
2. Noun. The fuel used in a '''two-stroke''' engine.
3. Noun. (Australian| |slang) Coca-Cola
four-stroke engine
1. Noun. An engine in which the pistons perform four strokes per engine cycle (i.e. intake, compression, power, exhaust).