id spend the money to rebuild the fuel side. first off you won't have a problem with a micky mouse install all your mounting hardware is there and two you won't have to worry about two pumps, i'd say the 140 is right on the edge of the little pumps capacity, look up the bullet shaped pump with three bungs, one for fuel in, one for fuel out and one for crankcase pressure, different numbers but all the same. on my 140 i ran two pumps inline and split the pressure tube. someone on the forum said it was a bad idea, mine will be the guinea pig.
