Valves are adjusted on small engines to ensure proper valve lash (clearance), which is crucial for optimal engine performance, fuel efficiency, and preventing damage. Correct valve adjustment ensures the engine can "breathe" correctly, leading to more power, a smooth idle, easier starting, and reduced emissions. Ignoring adjustments can cause misfires, rough idling, and even mechanical damage to the valve train and other components over time
Never adjust valves on a hot or warm engine. Always wear safety glasses.
Kohler valve adjustment on V-Twin. Step by step instructions. Courage/7000 engines and others. Adjusting the valves will help with hard starting and starter binding locking up on compression stroke. Adjusting valves should be part of normal maintenance. Kohler Courage engine and others with similar style rockers. Valve clearances are the small gaps between the tops of the valve stems and the part of the mechanism which presses on them to open the valves . Check the clearances at regular intervals.
Easy to follow step by step instructions. Adjusting the valves will make the mower easier to pull. Engine will run better. Valves should be adjusted every year. Tips; Always adjust valves on a cold engine. Shake the rocker arm back and forth to make sure its square to the valve. Put a little motor oil on the feeler gauge. When you think your done, re-check every valve. Sometimes when the locknut or set screw is tightened it will slightly change the clearance.
In this video I show you how to adjust the valves on a Briggs V-twin engine. The valves should be adjusted every year. Many other engines can be adjusted the same way. Some of the hardware may be different.
In this video I will show you how to adjust the valves on a Briggs OHV engine. The valves need to be adjusted on these engines every year. When the valves get out of adjustment , the engine will stop on the compression stroke. Engine will not spin over easy when starting. After adjusting valves engine will spin over easy while starting.
In this video I will show you how to adjust the valves on a Honda lawn mower engine. The valves need to be adjusted every year. Honda GXv160 and others. The valves can wear and get out of adjustment. This causes the engine to be hard to pull over. After adjusting the valves to .004-.006 the engine spins over easy and runs better.
DIY Repair Videos
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