Motorcycle spark plug

The utility model relates to the field of spark plugs of motorcycle engines, in particular to a motorcycle spark plug, which comprises a spark body, a terminal, an easy-to-heat resistor, a cooling resistor, a spring, a cooling conductor, a ceramic insulator, an easy-to-heat conductor, a metal casing, a copper core central electrode, mounting threads, a sealing washer, a positive electrode and a negative electrode. The upper end of the spark body is fixedly connected with a wiring end, an easy-to-heat resistor is fixedly installed on one side in the spark body, a cooling resistor is fixedly installed on one side of the easy-to-heat resistor, a spring is movably installed at the lower end of the cooling resistor, and a cooling conductor is fixedly installed at the lower end of the spring. A ceramic insulator is fixedly installed in the spark body, an easy-to-heat conductor is fixedly installed on one side of the ceramic insulator, a metal shell is fixedly installed on the outer wall of the spark body, a copper