I have a 1966 60hp Evinrude that won't start. the first issue is it seems as though I am not getting fuel to the cylinders. The bowl is full after pumping the primer bulb, removed and cleaned the main jets, removed and cleaned the idle needles, carb rebuild, checked the reed plates. Spark in open air tester is about 1/4", timing is set per the service manual, cylinder compression with my cheapo gauge is 1-60, 2-65, 3-65, 4-65. If I spray mix into the carb, I may get an occasional cough. Another thing that's concerning sometimes it's easy to turn the motor over, and sometimes it feels 'thick'. This motor came with a boat (1966 Thompson) and was told that the motor did not run. I'm thinking there may not be enough vacuum to pull the fuel through the reed plates? Any ideas would be appreciated.