Hey guys, I've been having some issues with my 2010 txc 250. Decided to borrow the hst tool to try to see if there was anything obvious going on and sure enough the race map was Not showing as being on. Decided to try a new 2.2k ohm resistor in the o2 sensor plug . Started up and race map showed green! Once it ran for a couple seconds noticed it was off again. Can't for the life of me get this thing to realize the o2 bypass is installed. Checked voltage on the brown white at the o2 plug and right at the cdi box both show 6.5vdc. Bike rips when race map is on and runs like crap when not on. Any help would be appreciated. Is there anything else that can disable the race map?
