Sprag clutch transmits rotational power from electric starter motor to crankshaft via engine sprocket in one direction. It can break on piston kick back when engine is shut off or stalls or during starting.
On a cold morning start, the engine of my UCE Royal Enfield motorcycle G5 2009 stalled and broke sprag on kick back with a metallic sound 'KTUK'. Removed the damaged sprag and reassembled bike without it. Now I use kick lever to start.
Music credit goes to the great Ali Farka Touré of Mali playing 'Diaraby'.
EDIT - After a few days, I bought a new improved stronger sprag clutch and installed on the bike. The design and construction of new sprag are shown in another video.
7 сен 2024