My '87 Ram 50 4cyl pickup wont pass smog for the 2nd in 4 years. Shop says the catyltic converter is bad so Ill be replacing that tomorrow and they said the carb needs to be tuned.

I pulled the plugs and all of them are white. I replaced them, the rotor and cap, ran a can of SeaFoam down the carb and a little in the oil.

How do I lean out this carb? Where are the mixture screws? I cant find any info on this thing.

Thanks
Rc

 

Try looking up info for a Mitsubishi Mighty Max pickup, as they are the same thing. I had an 89 Dodge D-50 and i found this out quick... I have a book laying around somewhere... now i have somehting to do.... I'll look it up. What size motor do you have? I think there is two different 4 bangers....