Remember that the Rocket has two "on" positions: click up once to enable the key detection and turn on the dash, click down once and release to fire up the ignition system and prime the fuel pump. Then you would pull in the clutch and hit down again to start. Lots of guys click up, then pull in the clutch and press down and hold, which pauses, primes then starts. I would imagine you would only get accessory power at the second stage, it's also the stage the bike needs to be in to talk to the ECU via the OBD for programming (as opposed to retrieving stats via OBD with the engine running).
