Compléter Four- stroke engineVersion en ligne Read the text about four stroke engine. Complete using the words. par Carolina Suárez 1 ignites fuel compression cylinder exhaust releases intake The four - stroke engine works by heating fuel and air in a . During the first stroke , the valve lets fuel and air into the cylinder . Then the valve closes during the stroke . A piston moves up to condense the air and . Then the mixture during the power stroke . The final stroke gas . This is the stroke . Source : Jim D . Dearholt " Career Paths Mechanics " Express Publishing 201 2
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