My neighbor just brought me his 2010 Arctic Cat 700 H1 EFI 4x4 (Timber Camo) to look at a starting/running issue. When starter is engaged, it is very slow to turn engine over. If it starts, it will run fine until it goes to idle, then is slows down and engine dies. His battery is good and I tried one out of my atv with same results.. He has been using "engine start" feature on his charger to get engine to turn over fast enough to fire. Sure could use some help with a diagnosis.