I just got a mercury 25 hp serial OA743255. The previous owner did not ad the operation manual. Is there anyone that can explain how the adjustment on the carb as to be done. It is a little erratic at slow speed. How to verify the timing? What is the exact fuel and oil mix? Where can i get an operation manual? What is the recommended spark plug to put on it?(just whant to make sure i have the good ones).
Thank you in advance