Labels:text | screenshot | diagram OCR: Paintbrush - 23BFOURC.PCX File Edit View Text Pick Options Help 2.3B FOUR CYCLE ENGINE ( 2 of 2 ) 3. POWER STROKE 4. EXHAUST STROKE As the compression stroke ends, the magneto As the piston starts back up, the cam produces a high voltage spark at the spark plug opens the exhaust valve. The burned igniting the air/fuel mixture. The rapidly burning gases are pushed out, the fourth cycle mixture produces very high pressure pushing is completed and begins the first again. the piston down the cylinder. ( PRESS ANY KEY - NEXT PAGE OR MAIN MENU )
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