This NGK spark plug is typically used on 33cc, 43cc, 47cc and 49cc 2-stroke engines found on pocket bikes and stand up style scooters.
Specifications:
NGK BM6A
Manufactures Part# 5921
The workhorse, at the heart of smooth-running engines around the world.
* OEM Quality
* Triple-Gasket Sealing Process
* Consistent Performance
* Plug of Choice in Millions of Vehicles
Fits bikes with this 47-49cc engine

Also fits bikes with this 33cc, 43cc, 47cc and 49cc engine
This engine can come with a red, orange or gray top. And in electric start or none electric start versions.