This is a diagram of the ever popular E22 engine design. This engine comes in 125cc, 110cc, 100cc, 90cc, 70cc and 50cc configurations. It has been designed in semi-auto with reverse transmission and fully auto transmission. This engine also comes in many different bore sizes therefore the different engine CC sizes.
This is the most popular engine being used today in kids powersports applications.
Tons of parts are interchangeable and parts are very easy to locate and purchase for this particular engine design and style.
Our shop technicians use the Clymers M311 Shop Manual which covers the Honda ATC-TRX-FOURTRAX 70-125 from 1970-1987. This is the reason some people call this engine a (clone) or (copy) of the major name brand guys.
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