Find the engine code on the plate. The engine code is a 12-digit number. The first two digits denote the year that your mower was manufactured. For example, if the first two digits of the engine code are “98,” your mower was manufactured in 1998, and “04” would indicate a 2004 Snapper mower.Click to see full answer. Beside this, how do you read a serial number on a Snapper lawn mower? How to Read a Snapper Mower Serial Number Move your mower into a brightly lit spot. Scan the mower deck for a white label, approximately 3-by-2 inches, with black writing. Locate the label and notice a series of numbers. Search around the engine if the serial number is not located on the mower deck. Subsequently, question is, what model snapper do I have? To find the model number of your Snapper Lawn Tractor, look for a white tag on the back of the mower, which, on most models, is located just behind the seat. Once you locate the model number, input it into the model field in our Snapper Parts Lookup and it will list the parts pertaining to that model only. Similarly, how do you start an old Snapper riding lawn mower? Check the oil in the lawn mower engine. Fill the fuel tank. Push the stop switch (if equipped). Turn the fuel shut-off valve (if equipped). Operate the mower engine in the fast position. Engines with primer: For most temperature conditions, firmly push the primer bulb three times. Who makes Snapper riding mowers?Briggs & Stratton corporation