Ive been having a problem with my 700, it wasnt running well, would run about 45 then act like it was starving for gas, replaced fuel pump, plugs ect then found a pin hole in the vent tube from the engine to the airbox, changed the 50 cent piece of gas hose and she runs like it should again, never too old to learn something I guess, anyone with poor performance, be sure to check the vents.

 

I had that happen on a car I owned. Great hint!