Jawa 250cc and Yezdi 250cc bikes Engine chambers basic spares and precautions before fixing 

Engine chambers assembly parts and precautions.
Crank shaft bearings 3 - 6305
Top gear bearing 1- 6205
Main shaft bearing 1- 6303
connecting rod bearing according to size
Oil seal kit 3 oil seals
Gudgeon pin bush 1
lay shaft bushes 2
Bearing locks 5