This is baffling me,its not realy a problem just strange.I put new platinum plugs and efree primium in the tank and went for a long ride.I checked my plugs to see if they are showing any color yet to see how in tune the carbs are.It doesnt have any signs of running lean,no popping backfiring and starts and soon as I hit the estart.Idles at 1200rpm warm.Starts on half choke when cold.I have fuel mix screws turned out 3 and half turns and my jets are 2.5 sizes over stock and pilot is 1 size up.The bike is a 400sh sohc.Should I not worry about it or should I adjust the fuel mix screws out some more?