I have a '71 Cheetah with a JC-A (non-split bowl) and mine was full of grease, not 90W. Pull the two plugs out and check what's in there first before...
Mine does the same thing where it pegs when the key is on. In my experience as soon as the motor fires and oil pressure comes up, the gauge will read...
Got the jet ready for summer yesterday by doing an oil change, draining the RV coolant, wiping it down and firing it up for a couple seconds. Hoping...