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REF: Tools - 129

Spark Plug Tools

To Gap the Spark Plugs

A small stainless plate 7/8“ long by 3/8” wide and .040“ thick with a
hole in it. It can be kept on a key ring and instead of keeping a feeler
gauge on your bike. 1)
Homemade Spark Plug Gapping Tool 2)

Spark Plug Hole Adapters for Diagnostic Testing

Homemade 1/4” NPT to 12mm Spark Plug Hole Adapter 3)


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