| 21. | During low-rpm operation, only one intake valve opens, allowing air and fuel into the combustion chamber.
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| 22. | The other intake valve has only a slight amount of lift and its timing is staggered.
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| 23. | The only flaws in the KL-ZE design were the weaker valve springs on the intake valves.
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| 24. | But further, it also controls lift and duration of the two intake valves on each cylinder.
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| 25. | As a result, the air-fuel charge drawn through the open intake valve undergoes a swirl effect.
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| 26. | The intake valve is typically a reed valve.
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| 27. | Injection was into the manifold before they split into the two intake valves for each cylinder.
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| 28. | If in doubt, have a plumber check the intake valve and anything else that seems amiss.
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| 29. | The intake valve was 40 41 mm and exhaust valves were 33 mm or 34 mm.
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| 30. | However, the intake valves may close before enough air has entered each combustion chamber, reducing performance.
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