Honda 5 hp EM 5000 SX generator won't run. Pressure washed while running two weeks ago, left running when complete for awhile then shut off. Next day it wouldn't start. Appeared to have no spark. Replaced ignition module and plug which produce a spark but somewhat faint. With starting fluid it fires once only. Will not go so much as a second revolution. New carburetor this year but should have kept running until starting fluid used up. Still suspect ignition but stumped. What could be killing engine after first kick?