I have a 2016 Pitster Pro LXR 250F that I purchased new in October 2016. I love the bike and have been making upgrades but I still haven´t been able to run the diagnostic check on the EFI from the CD that PP sent me. I´ve tried it in four different computers and it comes up as an RAR file that gives an error message that it wasn´t formatted correctly. The bike runs strong but I´ll get an occasional backfire and some deceleration popping when downshifting. I´ve been in contact with other owners of the same bike and they´ve had similar issues getting the CD to work. Apparently it only works in computers with Windows 7. One of the other owners advised me that the valves weren´t in spec and his problem was corrected after adjusting them. I guess I´ll just have to wait for some warmer weather to take the bike apart and check the valves.