You might want to add about 1 pint of ATF to the engine oil before initial start up. ATF is good to help engine oil flow better and has good cleaning capabilities. Let the engine get good and warm and then change the oil and filter again. Pull the coil wire before starting and crank to ensure you have good oil pressure. Once good pressure is verified, plug the coil wire back in and start her up. Beware of rodents, nuts, leaves, etc. in the exhaust system.