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