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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

These are used in place of the spark plug to hook up diagnostic tools (compression tester, leak-down tester etc.).
They can also be used to adapt a 14mm TDC whistle or piston stop to a Sporty engine.


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