2015 Copperhead 23 HP V-Twin The 138 pound 627 cc, 23 HP V-Twin motor is a very versatile motor the fits a wide variety of boats. Easy dependable operation is what the 23 is all about. Very smooth on long runs and an all out performer in the mud, vegetation, and timber. The 23 HP comes standard with electric start, recoil back-up starting, remote fuel, oil cooler, upgraded 20 amp charging system, heavy duty starter solenoid, programmable tach/hour meter, and 5 feet of battery cable.