Zipper Big Bore | Builder's Logs

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Hours: 16.00

Jan 20, 2022

The Legend, Hal Stockman, can to the Hangar Flying shop to help me install one of his Zipper big bore kits on my 912 ULS! What a remarkable experience and an all around great guy!

engine zipper rotax 912 uls big-bore top-end piston head overhaul

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