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Hi every master.

I know majority ppl will advice not to tune the a/f ratio ...

But, I just want to learn something ...

for 4G15 carb

just want to confirm the a/f ratio screw adjustment

we adjust the screw out towards the firewall is for "lean" or "rich" ?

we adjust the screw in towards the carb is for "rich" or "lean" ?

thanks
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