tors 84 issue
Had the error code 84 recently when I had the apex apart, the cable was pulled out from the sleeve at the throttle body adjuster. Turns out that the aftermarket throttle cable was binding when turning the handle bars, so I replaced the after market cable with a mountain sled cable as I have bar raisers of 5" and then adjusted the cable for the correct free play at all bar positions, problem solved. Before you button up the hole sled adjusted the play at the throttle body and plugged in the airbox sensor and fired it up, no more code 84. If you get the throttle cable issue resolved you don't have to clear the codes as the system resets itself. When you start it up make sure to turn the handle bar fully in both directions to make sure that the cable doesn't bind or raise the idle speed, if it raises when turning you still have an issue with the cable.