honda99s 9.9-horsepower four-strokes pack just the rht amount of punch. An 8-horsepower four-stroke (Practical Sailor Jan. 15, 2004) may still struggle with a fully loadedfuel filter i had a 1990 8 hp honda and it also would just stop. the first time it was a pluged fuel filter that goes into the fuel pump ( it lookes like a plug with a screw driver slot