justin_o_guy2 wrote on 11/06/18 at 17:32:52:Fog the cylinder
Spin the motor over with the plug out.
Get oil circulation up
Then start it
Probably should put a Raptor Petcock on.
What JOG said. When you changed the oil and filter......you now have a dry filter and it will take some time before the oil pump can pump oil into the filter.....and oil will begin to flow to the upper end. The cam/rockers and piston/cylinder should be oiled before you attempt to start the engine. Remove the spark plug and spray Sta-Bil fogging oil into the cylinder, remove the front valve inspection cap and use a pump oil can or bottle with a small tube to get oil back onto the cam and rockers. With the spark plug removed, spin the engine over with the starter for 15 seconds to get the oil into the filter and the upper end oil system (You could also remove the left timing cover port and use a 17mm socket and a drill to spin the engine over. Absolutely do not just start the engine with a dry cylinder and oil filter......you could easily score the cylinder or damage the cam bearings or rockers.
When I get a used bike that hasn't run for a while - I never change the oil and filter until it will start and run. Having old dirty oil flowing is better than not having any oil flowing through the engine while the oil filter housing gets the air purged out.
And I would get it running before I buy new tires - but you really don't want to do much riding on 12 year old tires.