Mercury 25 delayed acceleration

btm1950

Recruit
Joined
Aug 31, 2012
Messages
4
starts and idles fine. when excellerates goes half speed for several minutes, sputters and then full speed. after trolling same problem
 

Dave1027

Lieutenant Junior Grade
Joined
May 25, 2010
Messages
1,083
Re: Mercury 25 delayed acceleration

Check the idle mixture setting. It should be to the rich side to avoid a lean condition on throttle up. May also be fuel pump or carb needs rebuilding.
 

dew2

Senior Chief Petty Officer
Joined
May 6, 2010
Messages
674
Re: Mercury 25 delayed acceleration

I just read a wholeMerc manual,Didnt get my question answered,I posted my question here at iboats.The manual said for giving throttle and hesitation the lowspeed needle needs opened more,Needs a richer mixture. for exactly what your posting.
 

btm1950

Recruit
Joined
Aug 31, 2012
Messages
4
Re: Mercury 25 delayed acceleration

Check the idle mixture setting. It should be to the rich side to avoid a lean condition on throttle up. May also be fuel pump or carb needs rebuilding.

Thanks. I'll give it a try
 

btm1950

Recruit
Joined
Aug 31, 2012
Messages
4
Re: Mercury 25 delayed acceleration

I just read a wholeMerc manual,Didnt get my question answered,I posted my question here at iboats.The manual said for giving throttle and hesitation the lowspeed needle needs opened more,Needs a richer mixture. for exactly what your posting.

thanks, I'll give it a try
 
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