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Strange piston

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Strange piston

Post  crankbndr on Sat Nov 03, 2018 8:43 pm

I pulled this of a NIB Black Widow I acquired from a seller on Stunthanger years ago. Still aint figured it out. Any thoughts??

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Re: Strange piston

Post  Jason_WI on Sat Nov 03, 2018 8:47 pm

I have seen this before. The swirls were supposed to help mix the fuel/air mixture. Not sure how well it worked.
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Re: Strange piston

Post  Cribbs74 on Sun Nov 04, 2018 8:48 am

I highly doubt it worked at all. It’s definitely neat though. I imagine Cyclone pistons are pretty rare.
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