Thread this tool into the 14mm spark plug hole on any motorcycle (Triumph, Honda, Yamaha, Harley-Davidson, BSA, Norton, Kawasaki, etc)...
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Thread this tool into the 14mm spark plug hole on any motorcycle (Triumph, Honda, Yamaha, Harley-Davidson, BSA, Norton, Kawasaki, etc), or any engine for that matter, and it will help you find Top Dead Center (TDC) and assist in ignition timing. The gradations allow you to track the movement of the piston. CAD plated steel, made in the USA.
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