| 11. | The simplest arrangement is a single transfer and single exhaust port, opposite each other.
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| 12. | As the piston is pushed inward, it uncovers exhaust ports in the cylinder wall.
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| 13. | At cruising speed, reflected wave exhaust port blocking occurred at too low a frequency.
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| 14. | In 1970, AMC changed the head to the " dog-leg " exhaust port design.
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| 15. | There is a central square exhaust port on the cylinder wall uncovered by the piston.
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| 16. | The cylinder casting contained steam supply and exhaust ports.
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| 17. | Spark plugs were located in the side of the cylinder head, between the exhaust ports.
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| 18. | Surplus gas and powder residues are evacuated through an exhaust port in the gas cylinder.
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| 19. | The YF-23 has such serrations on the exhaust ports.
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| 20. | The exhaust ports were also modified with a higher port roof, which reduced flow restrictions.
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