If your bike is running over 1800 rpm then it is NOT in LIMP MODE. Limp mode shuts down the TCA so you only have enough power to pull the bike off the road to a safe location, simply put you have no throttle to speak of.
Do check for DTC,s first it is always a good place to start.
If there are no DTC,s and you have a aftermarket tuner try disconnecting the tuner and see if performance changes.
Do a compression check, and inspect your spark plugs and plug wires at the same time.
Check for intake leaks.
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08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.