I tried to synch the carbs, I got cyl 1 and 2 to be the same, but can't get cyl #3 even close. The idle speed is about 1000 rpm. any body have any ideal how to get cyl#3 same? thanks
I just did mine a month ago. If I recall correctly, carb three is the lower carb. The adjusting screw on that carb actually adjusts the linkage (all three carbs). It's there that you set the engine idle speed (950rpm +/-50 rpm). Once that is done the middle and upper carbs are synced to the lower carb. Here is the gizmo I used to measure vacuum.
