How To Locate Your Honda Engine Details
You will find the model number on a sticker located on the engine cover or recoil.
Honda engine model numbers start with the letter G, for example G100, GX690, or GCV160. This is the base engine model.
Engine Type Code
You will find the engine type code stamped into the side of the engine, close to the serial number. Engine type codes may be up to 4 characters. If a code is less than 4 characters, you may see asterisks as placeholders (i.e. an engine stamped with QX** is a QX type engine.)