Well took out the auction 9.5 Evinrude tonight. Runs great at above idle. It has a sneeze or cough if you turn it down low to troll slow. Low speed idle is super touchy. It will adjust, but when you turn idle down low (guessing below 1000 rpm) it will sneeze or cough kinda hard, sometimes die. Pump looks to have been rebuilt/changed as there is a rubber not cork fuel filter gasket. But I ordered a pump kit anyways. Carb kit is on it's way as well. Had, I am guessing by the lack of blue over spray paint, the second set of old Champ J4J plugs in it. Ran a hair better with Champ J4C's in it. Might try J6C's tomarrow to see if that helps more. Any you guys experience these symptoms? My guess is 1969 parts are time for a change.