Hi, im a mechanic from S.A. i am currently working on two GP 1200 ski's.
I have rebuilt the carbys for the first time in the ski's life and found the low speed mixture screws set all the way in, and the ski's have been running fine! All yamaha dealers i have spoken to have given me factory settings of at least 1 1/8 turns out! i have reset one of the ski's to these factory settings and it is way too rich. Has anyone come accross this before?