I have a 04' 50 hp Yamaha 2 stroke the occasionally bogs and then dies after starting for the first time of the day.It will get to about 1500-2000rpm before doing this. Idle is fine and motor will fire right back with just a touch of the key.Does not do this every trip, maybe 1 out of 5 . Can let the motor set for 10-15 minutes and it will start and run fine rest of day. I am thinking something up with the auto choke. Any ideas on fixing myself or should I take the 2 hour ride to my dealer?