Follow up on Panic's oil pump capacities... I went in my parts bin to have a look:
K/KH/57 to 61?XL oil pump gears: 14 teeth
delivery gears .217" thick, 5.51mm
scavenge gears .360" thick, 9.14mm
62?/71 Sportster oil pump: 16 teeth
delivery gears .181" thick, 4.59mm
scavenge gears .375" thick, 9.52mm
They were changes to oil pumps in 56KH, 62XL, maybe more, don't know for sure what for, hence the question marks above...
2 teeth more per revolution roughtly equals a 22% ( 11% per gear x 2 as both gears pump...) increase in delivery volume from K to XL BUT the XL delivery is narrower, can't face measuring the loss it entails!!!
But the XL scavenge is more than 22% above that of the K as the gears are thicker...
My only 72 oil pump's on the bike, can't check its gear sizes...
Also have a 1/4 speed 70 or 72 XR oil pump on the shelves ( different body casting # but same height/drilling patterns as K and XL):
delivery gears as above Sportster
but scavenge is a whopping .393", 9.98mm, that should't wet sump in theory!!!
I wanted to post photos of all these but batteries are flat, sorry!!!