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: Mercury Pro XS Overview and Highlights Mercury Engine Maitnence Chase Parsons explains what he likes about the NEW Mercury… Keith Kavajecz explains the NEW Mercury Four Strokes