bought the bike used and it was not running. i have the bike torn down to just the engine intact. i was not planning on tearing it apart but my question is since i do not know the condition of the oil pump and the bike has not been started in years should i take the oil pump out and try and rebuild or tear down and soak clean and put it back together and reinstall. thanks
Hook up a manometer or trust the idiot light
replace the oil filter
kickstart it about 10 times with the killswitch off.
Idiot light shold go out or manometer wil show > 7 psi.
That means the pump is ok. (99,9% it will as this is some solid piece of enginering)
Start her up and have fun.