Step One: Finding your Model number
To find the model number look for a model number sticker on the
engine (See Below). All Honda engine model numbers start with the letter
G, such as G100, GX610, or GXV160/ This the base engine model.
Step Two: Finding the Engine type code
The engine type code is stamped into the side of the engine, usually
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.)
Step Three: Finding the Engine Serial Number
The engine serial number is stamped into the side of the engine. All
Honda engine serial numbers have a 4 or 5 letter prefix followed by a 7
For more information on where to locate these numbers, refer to the