completely rebuilt 2.2 new clutch ,piston rings everything head rebuilt compr. 170 every cylinder new plugs,wires.dist. cap all replaced.have fire to inject. good spark no.1 cylinder won,t fire at low speeds runs exect at high rpms slow to idle no. one cuts out sbitched inject from 1 to2 same thing 1 won,t fire...................help.davidson1: