Videos 20hp 4-stroke Mercury – The Next Bite – Site Bites – Season 4 January 24, 2009December 10, 2017 The Next Bite 4-Stroke, Gary Parsons, Mercury, Videos Gary walks through the perfectly sized 20hp 4-stroke engine from Mercury. Other Related Posts: How to Increase the Performance of your Boat and… Season 19 Episode 8: Extracting Huge Summer Walleyes… Try adding a Little Night Crawler piece On Your Crankbait. Keith Kavajecz Explains Choosing the Right Mercury Props