A search for "pony spark plug" gets some good hits. Some recommendations.....
NGK 2910 (AB-6)
Autolite 386
any recommendations on plug gap?
Cats Forever
Should be champion d16 or equiv. 18 mm and are at a angle in the top edge of the head, maybe you have the later heads ? these have the plugs
in the middle of the head and stick straight out and are 14 mm thread champion L10 or equiv ... hope that helps ..
Should be champion d16 or equiv. 18 mm and are at a angle in the top edge of the head, maybe you have the later heads ? these have the plugs
in the middle of the head and stick straight out and are 14 mm thread champion L10 or equiv ... hope that helps ..
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