Weak spark r/h cylindes on evinrude?

Question

1979 85 hp evinrude. l/h cyliders are much weaker than r/h. coil checks good so do power packs . timmer base seems good too. rebuilt carbs, ant ideas? THANKS IN ADVANCE>

Answer 1

What year? What horsepower? More info is needed.

Answer 2

try swapping leads rom the good side over to the bad, check the spark.  U have to work backwards, so also check the spark plugs by swapping good side to bad.

Is the power pack cracked at all, is the leads right, by doing the above you should start to narrow it down

Good Luck

Answer 3

give more info hp and model/year how do you know weak  does it run