I am planning on a few upgrads on my JS 550 and would like some help on where to start on jetting. It currently has a JetSport head and I am putting on a Westcoast manifold and exhaust pipe. Planning on a new waterbox. With this I am planning on upgrading the carb to a Super BN. I currently have two with different jets, one is 120 L and 130 H. The other is 115 L and 135 H.
Has anyone made this upgrade? Any help on where to start on jetting would be awesome....thanks!
Has anyone made this upgrade? Any help on where to start on jetting would be awesome....thanks!
