Examine the top and sides of the engine. Look for a label or tag attached to the engine that is typically near the gas tank.
Clean the label with a rag, if necessary, to make it more readable.
Shine a flashlight on the label and make note of the model number and other relevant information printed on the label.
Continue to examine the engine. Look for a serial number stamped into the metal of the engine.
Clean the stamp with a rag, and use a flashlight to make it easier to read.
Make note of the 4- or 5-letter prefix and the 7-digit code following the prefix.
Use the model number and serial number when ordering replacement parts for your Honda engine.