Eric felt that the Mikuni carburetor needed a little more fuel, so he swapped out the stock main jet from 160mm to 165mm. Eric also adjusted the ignition mode from single-fire, single-spark to single-fire, multi-spark and kicked the advance slope from two to six just to see what would happen. Lastly, he removed all the discs from the SuperTrapp exhaust pipes to see the other end of the spectrum. The second pull on the dyno produced 80.08hp and 80.39 lb-ft of torque, a nice increase with just a few modifications. But as you can see, there’s some dips in the hp and tq curves starting around 3,000 rpm.
Eric felt that the Mikuni carburetor needed a little more fuel, so he swapped out the stoc