Doesn't look like they've put the MJNs in any CV carbs. I wonder if the diaphragm can handle the different needle setup. The MJN might have more or less drag, or affect the rate at which the diaphragm can move.
Could swap out the stock carbs for a complete Yoshimura set. Probably $500+ to replace both carbs....
Could swap out the stock carbs for a complete Yoshimura set. Probably $500+ to replace both carbs....