carb problems

[jcardenas53ymail.com]

Just rebuild the carb from my Johnson 15hp model# J15RERE. Just woundering is this my idle jet screw and if so how do i adjust it.

 

[jcardenas53ymail.com]

Like to know what does this screw do and how do i adjust it

 

[coueytwo]

to the first question no that is not your idle adj screw, the idle adj is on the left back top of the carb. the 2nd picture is the idle adj screw. how to adj? screw it in lightly until it bottoms out, then back it out 1 1/2 turns. crank motor if will not crank come out one half turn. try again, let motor warm up and them adj screw until motor runs smooth, once running smooth adj screw in (lean) until motor coughs, back screw out one eight of a turn, should be ready to fly.

 

[jcardenas53ymail.com]

Do I screw (lean) In all the way in and then screw out or how do I adjust the lean screw.

 

[jcardenas53ymail.com]

I would like to know why my boat motor is smokes when i turn the throttle up. It smell like its running to rich (gas&oil) how do i fix that or is it normally it runs like that. please help me out somebody

 

[coueytwo]

turn the idle screw all the way clockwise, back out 1 and 1/2 turns, start the motor, if no start turn 1/2 turn more,
once motor starts, let it warm up. slowly turn the screw in (lean) until the motor starts to cough. back the screw off 1/8 turn.

you motor will smoke, run good gas and good oil and it will somke less.

 

[jcardenas53ymail.com]

do i choke the carb

 

[jcardenas53ymail.com]

u still havent answer my question. when i rebuild the carb i took the screw out, so when i put it back in do i screw it all the way or what

 

[coueytwo]

are you talking about the screw at the top front of the carb?
if so just screw it in all the way.