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While doing some research for a fellow motorcyclist I came across this ad for Valvoline oil that details the finishing order and what tires, chains, oil, plugs, gasoline and magnetos the various riders used.
As the question of what plugs, etc, were used by the various manufacturers crops up from time to time on this forum I thought it may interest some of you.
As the question of what plugs, etc, were used by the various manufacturers crops up from time to time on this forum I thought it may interest some of you.
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