newOld_kz1000 wrote: I've heard of 'tolerances' but there's gotta be more to it here. I have what I thought were stock 1978 28mm Kz1000-D1 (the Z1R model) carbs.
- no accelerator pump (the 1980 Z1R *did* have 28mm carbs with accel pumps I believe)
- pilot air screw is on the side of each carb pointing up at an angle for easy adjustment
Well I measured the intake opening (engine side) i.d. of each of the 4 carbs and they all read 28.8mm
28.8mm is way closer to 29mm than it is to 28mm.
The 28's on my 79 1000 measure closer to 29 mm as well.