Originally Posted by
wothrottle
small carb insert, turn in the mixture screw,right?!
but generally,is there a way to tune this screw with a shematic,like the pinch test for the lsn?
When you go from a carb with no insert to a carb with an insert, you're going to have to lean it. Tune by speed, smoke and you're gut feeling. Then break out the temp gun.
I don't understand you're second question.