Bought an 07 650 after 12 hrs it started running like crap, won't go over 38mph, back fires alittle, at about 1/3 throttle runs real rough. There are no mods done yet it's still stock. I saw further down the forum where everyone was pointing at the belt switch??? None of my dummy lights are on??? The dealer switched out the plugs and gave it back ran it out in the field maybe 300 yards on way back it started doing it again. Any help would be appreciated
