this is a follow up from my Port Side Spark Plugs Black that i posted on 7/02/19 and last comment was 7/11/19. 1E001029 is the old serial # replaced power head with part # 8M0125790 or serial # should be 1B973744 or higher. gauge was not a liquid filed gauge so it was erratic bouncing from 105 to 95 Port side running . at shut off reading 92, 5 seconds later 90 ,10 sec. 90, 15 sec 89, 60 sec 89. when un screwed had a lot of fuel come out. Starboard when key was turn on fuel pressure was 105, when running bouncing from 115 to 100 , shutdown 92, 5 sec 90, 10 sec 90, 15 sec 89, 60 sec 89. fuel came out but no air when unscrewed . took out 1 spark plug on each side and put 80 lbs. regulated air in port side do not here any leaks , slowly raised air pressure to 95 and heard air going through . also port spark plug carbon foul and starboard good. had a little fuel and oil on lower unit . This motor had all 3 diaphragms replaced with only 17 hours on power head, now should be around 75 hours on power head. also in march i put a fuel pulse kit in , water separator filter , bulb and fuel line from Don, also new spark plugs gaped .042 - .044 . idling rough and dieing with lose of power . get worse each time out . 20190721_171128.jpg