I recently purchased a used Tohatsu 2.5A for my dinghy. To ensure that it gives me many years of reliable performance I decided to give it a good tune up. I boutht the carb re-build kit, the service manual, gear oil, new spark etc. In doing so I found that the 2.5 and 3.5 are the exact same motor(so is the Mariner 2.5/3.3 and most other smaller motors sold with a different motor cowel). Since all of the Carburetor specs are the same (main jet, needle jet, cutaway etc.), the only thing I can think of that restricts the horsepower to 2.5 is the reed valve.<br /><br />Can anyone confirm that changing the reed valve will give the motor the extra HP? If so, where can I get the 3.5 reed valve, what is the part number and any idea of the cost?<br /><br />Any help would be most appreciated!<br /><br />Thanks
