Hi Foccers...WOT IS hg and how do u measure it...??!!
I'm having similar carb probs...
bike is running ....but ROUGH. I went to great lengths building the home-made MANOMETER...
only to find that i couldn't get 1 & 2 into balance no matter how much I adjusted the screw...of course I unscrewed it all the way out and
had to buy a special torch (EBAY) and long reach screwdriver (LIDL) ....and had to glue the screw to the screwdriver to get it back in.
Depressing....... am thinking of upgrading (?) to fuel injection....I'm reluctant to even give this problem to the bike shop...do they know how to do it properly...do they give a FOC...?!!?
PS i also adjusted the pilot screw to two turns out...like it says in the (YAMAHA) workshop manual