Any Merc 120HP's that DON"T BOG on accel?

[Rhadley]

According to my book, the pre-1987 120HP mercarbs had insufficient accelerator pump capacity and tend to bog out during acceleration. I have this problem. Does anyone with a 120 not have the problem? If so, what carb is on your boat? I want to get one that works!

 

[mellowyellow]

Re: Any Merc 120HP's that DON"T BOG on accel?

MY '76 140 takes a couple quick throttle pumps<br />before it will take off.

 

[damie]

Re: Any Merc 120HP's that DON"T BOG on accel?

GUESS ITS JUST AN AGE OLD PROBLEM!<br />MY 1996 135HP HAS SAME CARB(A BIT MODIFED) I PUT ON A GENUINE REPLACEMENT.....GUESS WHAT......IT STILL BOGS DOWN.<br />LOOKS LIKE NO ONE CAN SLOVE THIS AGE OLD PROBLEM!

 

[Rhadley]

Re: Any Merc 120HP's that DON"T BOG on accel?

That's discouraging, Moriah. I thought the 1987 carb would fix that! Do you have a Mercarb or Rochester? The bog problem in my book referred only to the Mercarb version.

 

[bruce stocker]

Re: Any Merc 120HP's that DON"T BOG on accel?

i have 83 that jumps out of the water when i throttle up. sounds like i'm lucky. oh 120

 

[Rhadley]

Re: Any Merc 120HP's that DON"T BOG on accel?

Bruce, what carb do you have? The Rochester has 2 idle adjustment screws, the Mercarb has 1. Do you know what part number is on your carb? I'd like to try to find one that works.<br /><br />Do you want to sell your carb!!! (Just kidding)

 

[bruce stocker]

Re: Any Merc 120HP's that DON"T BOG on accel?

i'll look tomorrow and let u know.