Sorry I posted this on the wrong forum.
This is de ja vue. I just got my 48 surging issue solved and now my sons 2000 30hp johnson is doing almost the same thing. I rebuilt the fuel pump (same as my 48) and checked all the hoses for leaks and cleaned the carb. After running just above idle in gear for about 3 mins, somtimes more or less when I give it throttle it starts surging. The strange thing is that if I put it in reverse and give it about half throttle for a short while the problem is gone when I put it back in forward. I can run all day at half of full throttle and never have the problem. It is only after idling does this happen.
I'm also having issues with my 60 mercury I just bought to replace the 48 tilt/trim not holding. Can't retire till my boats or good!
This is de ja vue. I just got my 48 surging issue solved and now my sons 2000 30hp johnson is doing almost the same thing. I rebuilt the fuel pump (same as my 48) and checked all the hoses for leaks and cleaned the carb. After running just above idle in gear for about 3 mins, somtimes more or less when I give it throttle it starts surging. The strange thing is that if I put it in reverse and give it about half throttle for a short while the problem is gone when I put it back in forward. I can run all day at half of full throttle and never have the problem. It is only after idling does this happen.
I'm also having issues with my 60 mercury I just bought to replace the 48 tilt/trim not holding. Can't retire till my boats or good!
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