2005 Honda CMX250C

I AM EXPERIENCING A VERY SERIOUS PROBLEM WITH THE ENGINE / FUEL INJECTION (?) SYSTEM ON MY NEW 2005 HONDA GOLDWING 1800. I HAVE NOTICED A SERIOUS PROBLEM IN THE WAY THE ENGINE RUNS. THERE IS A DECREASE IN RPM?S WHEN THE ENGINE ATTEMPTS TO MAINTAIN APPROXIMATELY 1500 RPM?S. AFTER THE ENGINE SLOWS TO APPROXIMATELY 1000 RPM?S, THE ENGINE SPEEDS UP TO 1500, BACK TO 1000, AND CONTINUES IN THIS CYCLE WHILE HOLDING THE THROTTLE STATIC. WHEN I AM AT A STOP AND THEN ATTEMPT TO MAKE A SLOW, TIGHT TURN BY USING THE ENGINE SPEED AT JUST ABOVE IDLE AND FEATHER THE CLUTCH THROUGH THE TURN, I LOSE ENGINE POWER. I THEN HAVE TO ACCELERATE OUT OF THE TURN WHILE GIVING MORE CLUTCH. THIS IS AN EVASIVE MANEUVER TO AVOID LOSING CONTROL OF THE MOTORCYCLE AND FALLING TO THE GROUND. THIS CONDITION PROHIBITS EMPLOYING PROPER TURNING TECHNIQUES AND RESULTS IN INCREASED TURNING RADIUSES. THIS CONDITION CAN BE REPEATED AND OBSERVED BY IDLING A WARMED ENGINE AND THEN SLOWLY OPENING THE THROTTLE TO 1500 RPM?S AND HOLDING THE THROTTLE STATIC. THE ENGINE THEN BEGINS TO VARY ITS SPEED IN A PULSATING WAY (1500 TO 1000 TO 1500, ETC.). DURING THIS TIME, ONE CAN HEAR WHAT SOUNDS TO BE AN AIR VALVE OPENING AND CLOSING IN CONCERT WITH THE RPM?S GOING DOWN. THIS CYCLE RUNS APPROXIMATELY EVERY TWO SECONDS. ON TWO OCCASIONS, I HAVE TAKEN THE MOTORCYCLE INTO A LOCAL AUTHORIZED HONDA DEALERSHIP AND RELATED THE PROBLEM TO THE SERVICE PERSONNEL. WHILE THEY ARE MORE THAN WILLING TO FIND OUT WHAT THE PROBLEM IS AND TO CORRECT IT, THEY HAVE NOT RECEIVED ANY DIRECTION FROM HONDA OR THE HONDA MODEL TECHNICIAN IN TORRANCE, CALIFORNIA. I HAVE SPOKEN TO AN AUTHORIZED HONDA SERVICE TECHNICIAN (A PERSONAL FRIEND) AND HE IS AT A LOSS FOR A SOLUTION. I HAVE BEEN IN EMAIL CONTACT WITH THE FORMER TECH-EDITOR FOR WING WORLD AND HE SAYS THAT THERE IS NO FIX FOR THIS CONDITION AT THIS TIME AND THAT IS A SITUATION WITH THE GL1800 THAT IS COMMON IN ALL GL1800?S, SOME MORE INTENSE THAT OTHERS.