Well, not the first time, but the first time in a long time. Finally got my replacement motor cleaned up as much as I'm willing to, and am ready to chuck it back on the frame and fire it up. I've read about putting some oil onto the top end via the tappet covers and into the cylinders via the spark plug holes prior to starting old engines. Is this advisable? And if so, how much do I add to the top end and to the cylinders?