Posted: 9/16/2016 8:22:52 PM EDT
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I noticed a sticker on my Polaris Slingshot yesterday. It listed various maintenance items on it. One of the things listed was "self adjusting spark plugs"
How the heck does a spark plug self adjust? |
Huh, the only thing I could find on them is a bunch of really vintage ads for them on eBay 
Interdasting |