I have been messing with that darn back screw lately also! MAN WHAT A PAIN@!!!! getting the ds dialed back in after the lectron clean out from the winter after about the 4th adjustment i tried my little stubby screw driver (craftsmen) of course. worked alot better. no more taking of the carb to get to it. the worst part i was was 1 and 3/4 turns rich when i got it back on, a 1/4 turn adjustment each time i was ready toss the screws and just use some high temp caulk. j.j. but the stubby screw driver saved the day try it!!

 

Same here. I have never used it from day 1....