Misfires at high throttle settings
I bought a VN750 '06 a couple of months ago. It is new, and has about 900 miles on it. I've started using higher throttle settings now, since it's through its initial break-in. I've noticed that at about 3/4 throttle, or higher, the engine misfires a lot, and power isn't as good as I would expect. The engine and fuel system are still stock. I live in Utah, and the bike operates at an elevation of about 4500'. Could the misfires be caused by a less then optimal main jet size?