jameskat

This may help.

So channel 2 fires 1 and 4?

Don't know if it is still for sale, and requires some work, but it is desirable.

Or m/s

125mm on mine.

Angled floats and jets, I think you are getting into more trouble than it is worth.

The one I took apart years ago was just a lever with the output closer to the pivot than the input, I am sure i have seen someone on there make a longer lever and offset the cable clamp/adjuster point. Found it.

Is it a 750 swingarm?

Some info, https://www.theflyingbanana.com/gsxrcarbies.htm

Slabside has 73 teeth (1052), 1127 has 72 teeth, so wrong basket. Info in here http://oldskoolsuzuki.info/archives/tag/clutch

As far as I am aware the 1052 should have 76mm pistons as standard, 1127 should have 78mm pistons as standard, 1156 should have 79mm pistons as standard.

D shaped dowels are fitted to bandit 1200 barrels, not sure what else.

1052 on the side of the barrels?

The oil pump gear swap on the 1100 is usually to use the gears out of a 750 16 valve plain bearing engine which have a different ratio (spin the pump faster).

More coils would make a softer spring (longer length of wire), larger diameter wire would make a stronger spring, fewer coils would make a higher spring rate.