Can the pilot screw make up the difference between say a 40 and a 42 pilot jet? My 2007 T100 has always been a hard starter when cold. I currently have 40 pilots 3 1/8 turns out. I was thinking about going to 42's. Bottom line, does a 40 at say 3 1/8 equal a 42 at say 1 1/2 turns out? (Just a rough comparison) Or is it more complicated than what I am thinking?