Thanks for the advise v8 Volvo and ngoma. I'll try the low viscosity syn oil.
My observations on the injection pump fuel control screw and throttle lever.
If the fuel screw still has the sleeve still welded to the screw then it's straight forward. In my case I set the splined throttle plate to the furthest line marked on the plate. That is '/' on the pump shaft looking down from the top aligned / on the rt of the throttle plate. This setting gave an idle of 1400 and with the fuel screw turned in until the locknut contacted the lock sleeve. Turning the idle stop screw to 1000 rpm caused the revs to hang after a few snap throttles. Backed the fuel screw exactly 3/4 turn out , brought up idle stop screw which eliminated the hanging (and possible runaway). It doesn't take much adjustment from safe to runaway on fuel control screw. Be careful.
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