I have a 2002 40hp Yamaha (C40TLRA-2 stroke) and am looking at putting 50hp (50TRLA) jets in it. The 40 has one #118 & two #115 main jets and the idles are #60. The 50 has three #130 mains and the idles are #62. Do you see any problems in doing this, and I will I gain very much by doing so? Also...
