See above post, then i always let mine idle a few minutes to make sure my new impeller is pumping water thru the engine,my oil pressure is good( I change oil at end of season) , make sure batteries are charging, no leaks from a plug being left out, trans shifts ok(another fluid change) then I just idle out from dock and do varying low speeds for about 5 minutes before I hammer down and the season is offically started for me.