76 135hp johnson will not start

fishmonster13

Petty Officer 3rd Class
Joined
May 17, 2009
Messages
98
i have a 135hp johnson and last sat i went down to the ramp and the motor flooded out , went home and it started up after removeing the plugs and blowing the fuel out, then went out and it ran fine all day , the next day took it out and it would not start just kept flooding out , finally got it start and it ran erratic for about 30 mins then was fine the rest of the day, went and started it up in the drive way on wed and it fired right up, now today went to the ramp and it would not start up at all would not even attempt to fire. now motor has 120psi on all cyl, good fuel flow to the carbs, carbs were rebuilt about 6months ago. but i have an intemitant spark on the number 4 cyl, would that be enough to keep it from starting at all? ive worked on all kinds of motors, do it as a living and most will run still one cylinder down.
 
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