Have the 850xc(u.k.) only done a 100 miles so far from new but on acceleration from stop/start it hesitates/misses before speed picks up the dealer said put some miles on it if it doesn't clear they will check on first service .

Sometimes if I've been running a little while it will build up some pressure in the gas tank and has caused that. I would try to unscrew and vent the gas cap and see if that helps.

https://www.youtube.com/watch?v=o-W-tvYjaII&ab_channel=RealTalkPowersports