I started decarbing my 1982 Johnson 25 hp motor last night with the plan to get on the water ~12 hour later to run the OMC power tune out of the engine. The weather has turned snotty and would be better if I could go out tomorrow am. Can a leave this OMC power tune spray in the engine for 24 hrs or would that cause problems? They recommend 3-16 hours standing before running and clearing engine. Will leaving it with tuner in it for 24 hours cause any harm? Thanks, P239