Xr650l Fcr Tuning help

Discussion in 'Thumpers' started by Scott Pryor, May 2, 2020.

  1. Scott Pryor

    Scott Pryor Been here awhile

    Aug 1, 2015
    Hey guys. Ive been running into some trouble with tuning my fcr carb on my 2000 Honda xr650l. Its desmogged, de snorkled and has a uni air filter. Ive spent some tme trying to tune it but after talking with some guys i was going way to rich. I followed thier suggested tuning of 158 main, 48 pilot, NCVT needle 3rd clip from the top.

    After doing that the bike fired right up, way better than any of my other trys but when it heated up it would want to die. When i tried taking it back around the block it had a bad bog when i opened the throttle (ive adjusted the AP circuit properly already and tested it). It was also backfiring alot and at one point just conked out. Any insight that would help me?