Recently purchased a 20 foot Pontoon Boat it has a serial # on the Motor of 1062 and Model # 507F6A Force 50 horsepower. The model of the boat is 20AV9. Could anyone tell me how old of a boat this is and what spark plugs it takes and if an owners manuel is still available. Will the serial number on the boat tell me how old the boat is? What mix oil and gas should I use?<br />Lots of questions but this is my first boat and I like to repair things correctly the first time. Any help would be appreciated.<br /><br />Harold