Spark Plug Tightening Torque
It is very important to properly tighten spark plugs after replacement or cleaning – especially on small engines with aluminum heads. This table gives approximate torque values for different sizes of spark plugs in both cast iron and aluminum heads. |
Torque Wrenches
If you plan to do much work on lawn/garden or grounds maintenance equipment, you need a torque wrench. Even a job as simple as changing a spark plug on a small engine should be done with a torque wrench. |
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