most 50cc 4 stroke takes 5/8
Spark plugs use SAE and not Metric. The one that fits it is the one that fits it.
18MM
5/8"
11/16" (18mm) deep well socket
18 mm
The CR9EH-9 spark plug needs a 16mm or 5/8" socket.
Get a spark plug socket and wrench that fits the plug body and remove it by turning counter-clockwise.
The BPR6ES spark plug typically requires a 5/8-inch (16mm) socket for installation and removal. This size is standard for many automotive spark plugs. Ensure you have a spark plug socket with a rubber insert or magnet to help secure the plug during installation.
It's called a sparkplug because... It creates a spark to ignite the fuel in the pistons, and as with any plug - it fits into a socket.
no,just make sure you get the right one that fits it correctly.
A spark plug BPR5ES typically requires a 5/8-inch (16mm) spark plug socket for installation and removal. It's important to use a socket that has a rubber or foam insert to grip the spark plug securely and prevent damage during handling. Always ensure the wrench is compatible with your specific vehicle's spark plug access space.
42mm is a standard socket. If you mean "what SAE socket fits," none of them do. BTW, what are you trying to get off that's got a nut that big on it?