12 Volt Electric Starter Motor for 50cc QMB139 Go-Kart Engines

This 12 volt electric starter motor for 50cc QMB139 4-stroke go-kart engines is the same little starter that kicks over the engines on millions of GY6-powered motor scooters all around the world. If your go-kart uses a 50cc (or 49cc) gasoline engine, then it is probably a GY6 QMB139. If such is the case, then this is the correct replacement starter motor for your kart.

Please refer to the Specifications tab for dimensional data.

⚠ WARNING California Residents: Proposition 65 Warning

69mm bolt hole spacing

10 splines

7.25mm total diameter of shaft

Ring connector