Sometimes on my 06 Grizzly 660 when I turn on the key the display stays black or the lights on the display flash irratically. When this happens the bike won't start(doesn't turn over, no click,nothing) If I pull the cord it fires right up and runs great. When I put it in reverse it chugs and spits (acts like the gas is dirty) but runs fine in both forward gears. This is an intermitent problem, sometimes the bike will run perfect and other times I get this problem. The last time it happened I disconnected the battery cable for a few minutes and reconnected it. This seemed to fix the problem. Has anyone had this same problem or heard of it.