Could I ask for comments about the adjustments for the two different oilers.

In the Indian Riders Instruction Manuel

For the 1928/1929/1930 pumps "to alter the adjustment of the oil flow, loosen lock-nut (B), and turn screw (A) to the right (in) to decrease the oil supply and to the left (out) to increase the oil supply. (Fig. 7)

With the 1931 models  "to alter the amount of oil pumped at idling speeds, loosen lock nut "B" (Fig. 6) and turn screw "A" to the right (in) to increase the supply and to the left (out ) to decrease the supply.    

With the 1931 model, to "to alter the amount of oil pumped at wide open throttle, loosen lock nut "D"and turn screw "C" to the left (out) to increase the supply and to the right (in) to decrease the the supply".

Thank you