Tbi troubles
I have a 2024 ktm 250exc with 40 hours. I’ve done the tps voltage, base set at .3980, powervalve reset, tps reset, brand new plug, brand new filter, fresh tank of 98, brand new exhaust packing on an fmf titanium 2.1 system.
On band it runs sweet, idles sweet, idle for 20-30 seconds throttle cracks crisp. The second I load it up in any gear it’s a burbly gargly hesitant engine. Any throttle movement under powerband it’s a gamble as to whether it’s going to actually create some power or not. Are they really this over fuelled and bad from factory? This issue has been persistent the whole time I’ve had it.
Is my only option seriously aftermarket tuning? Do I need to check the reeds already? Can I wind the tps voltage down much further to try lean out the bottom end?
If I flog it like an mx bike it’s fine, it’s just a massive pain in the arse as a hard enduro bike. I think I may have been just as fast of a 450 stalling every 6 metres.