Honda GXH50 Engine, with 15T #219 Drive Sprocket and clutch, engine mount, and chain guard.
The Honda GXH50 engine is the backbone of the Kid Kart category. The single-piston, dual-valve motor makes about 3 horsepower, and will propel the Kid Kart to approximately 35-40 mph.
The Honda GXH50 engine kit available here includes the motor assembly complete, with the clutch assembly with 15T drive sprocket included.
A Note on Specification and Model
For Kid Kart racers currently, the full model designation for competition is the Honda GXH50 UT QXA. In previous years (prior to 2014) there was a model noted as the Honda GXH50 U QXA. This has been discontinued as of 2014. This was primarily done to reduce emissions from the engine, as this engine is utilized in a variety of applications, not just racing.
We note this information as some customers have specifically requested the Honda GXH50 U QXA, and wanted to inform racers that this model is no longer produced. The UT QXA now supersedes it.