carb rebuild question

easyzb

Recruit
Joined
Mar 25, 2012
Messages
3
i have a1976 merc 115 hp inline 6 motor, i got a manual from library to rebuild carbs because motor was bogging down when took it out to lake. the reason i figurre it was the carbs that needed to be rebuilt because i had it done about 5 years ago doing the same thing. well to make a long story short i decided to do it myself , everything that i done ,i did by manual,:confused: new carb kits ect..., put it all back together and motor started up fine. after a few minutes, it stopped and cant get it started back up. it seems no gas is getting to carbs. fuel pump is ok because gas is coming through lines to carbs. is it something that i am missing, any help would be appreciated.
 

ryan850

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Joined
Mar 25, 2012
Messages
1
Re: carb rebuild question

check the inlet screen to carbs, they might be clogged
 

hl

Petty Officer 1st Class
Joined
May 2, 2010
Messages
243
Re: carb rebuild question

i have a1976 merc 115 hp inline 6 motor, i got a manual from library to rebuild carbs because motor was bogging down when took it out to lake. the reason i figurre it was the carbs that needed to be rebuilt because i had it done about 5 years ago doing the same thing. well to make a long story short i decided to do it myself , everything that i done ,i did by manual,:confused: new carb kits ect..., put it all back together and motor started up fine. after a few minutes, it stopped and cant get it started back up. it seems no gas is getting to carbs. fuel pump is ok because gas is coming through lines to carbs. is it something that i am missing, any help would be appreciated.




Did you start turning the fuel mixture needle 1and 1/2 turns out from seat?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
29,040
Re: carb rebuild question

Are the inlet needles sticking in the seats? You did replace the floats, inlet needles and seats? The original floats tend to disolve in today's gasoline and alcohol fuel. Carb cleaner can make the inlet needles stick in their seats.
 

easyzb

Recruit
Joined
Mar 25, 2012
Messages
3
Re: carb rebuild question

Did you start turning the fuel mixture needle 1and 1/2 turns out from seat?

no i didnt turn needles 1 and 1/2 turn from seat. I will try that, this forum is really great.
 

easyzb

Recruit
Joined
Mar 25, 2012
Messages
3
Re: carb rebuild question

Are the inlet needles sticking in the seats? You did replace the floats, inlet needles and seatsthan? The original floats tend to disolve in today's gasoline and alcohol fuel. Carb cleaner can make the inlet needles stick in their seats.

chris thanks for your help i didnt replace floats, but everything else was replace, old floats did look fine but i am going to recheck. thanks
 
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