I am currently running an 07 America with AI removed, Freak Kit with dual K&N's, Bubs long slash cut's, and I believe stock pilots and a 160 main. These were all installed by the dealer at the time of purchase so I haven't been in to the carbs to confirm the jets. It has been running great; no issues except a little lag in throttle response at about 50 mph and a little backfire ocassionally on starting. I have not played with the mixture screws because everthing seems to be running great. I decided to dyno it the other day just to make sure everything was running optimally. I did think the 160 mains might be a little large given all the postings I've seen. Our Triumph dealer doesn't have a dyno so all the initial rejetting and adjustment was done based on their experience and ears. The dyno results look like it is pretty close. The place I took it to have it dyno'd is a Big Dog dealer near my house. They do mostly Big Dogs, Harleys and other V-twins. They said it ran smooth and pulled great. Actually two of them said it was the smoothest they had seen and said it pulled more consistently through the run than most bikes they see. They would not dyno tune it because they don't have experience with the parallel twins. The tech said I was running a little rich and suggested I go down one size on the main jets. The air fuel ratio seems to run consistently rich but not too far below optimum. Seems to me changing the mains will correct the rich setting a high rpm but what should I do for the lower end. Change the pilot or adjust the screws? Any help will be appreciated. By the way they charge $50.00 for a dyno diagnostic. I think that' pretty reasonable. I have included a link to my dyno results. Thanks to Staffo for posting those.
http://www.bonnevilleamerica.com/forums/...part=3&vc=1
