I own a Yamaha 2003 50 horsepower 2 stroke (50TLRB) motor. I have always been kind of hands on with things like tune ups, carburetors, starters, linkage adjustments, things on the outside of the power head; I leave the rebuilds to the professionals. All this said do you have any suggestions as to who publishes a good shop manual. Do I just go with what the manufactures offers?