Performance Boat Shop

9.9 racing propeller?

i have a 1995 johnson 9.9 2-stroke that i put on a 8'6'' inflatable boat. last year i got a refurbished stock michigan prop for it. with me in the boat the thing fly's at about 25mph. i was wondering if anyone knew what brand of propeller would make a high performance or racing propeller for the 1995 johnson 9.9.

Public Comments

1. Really you won't find many and there won't be a significant difference. The reasons that there are so many prop choices on larger boats, like controlling engine rpm and cavitation simply won't be a problem with a 9.9 no matter what. You certainly don't want a taller prop since you're well below the top RPM of that engine (it has a higher rpm in 15hp guise). Really, the best upgrade would be to get a 15hp carb and put it on. Otherwise, the engines are very similar. You can read more about that here:http://www.sschapterpsa.com/ramblings/Johnson_9.9_troubleshooting.htm The engines did change in 92~93, but the carbs were the same through 96. Anyway, those are great engines. Many would consider what you're doing a but unsafe, I think it's fantastic.