Thread: Need some basic information about adjusting my carb

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Originally Posted by cffisher

I use a vac. gauge setting the idle mix getting the highest reading with idle speed set where it needs to be. do 1 screw at a time going back and forth. till you get highest vac and idle right.

And this is how I do mine too. Before I owned a vacuum gauge I did it the way RSpears describes. I have found the vacuum gauge to be very reliable and accurate. A vacuum gauge isn't real expensive either and it can tell you alot about your engines condition inside!