whats the correct spark plug for a honda cr80rb 2002?

Question

just but secondhand honda cr80 not starting the rings may be gone but not sure if spark plug is right there was a nd w24es-u in it same as ngk b8es

Answer 1

NGK BR8EG belongs in that bike - it's the racing equivalent of the B8ES.
2002? I think it's time for a new top end.
Do a compression test.
OR
Remove the exhaust pipe and look in the exhaust port with a flash light and mirror.
If you see any scoring of the piston / cylinder wall, or discoloration below the rings, the top end will need to be repaired.