What do the first one or two numbers of the model number system indicate?

The first one or two numbers of the model number system typically indicate the cubic inch displacement of the engine. This measurement is a crucial specification for understanding the size and power output of the engine. Cubic inch displacement refers to the volume of the engine's cylinders, which directly correlates to its power and efficiency. Knowing this information helps users understand the engine's capability and how it may perform in various tasks or applications.

For example, a larger displacement often means more power for tasks that require heavier lifting or more strenuous operations. This contextual knowledge is essential for anyone working with small motors, as it allows for informed decisions regarding equipment suitability and performance expectations.