THE 1982-84 250 WR MODELS DID NOT HAVE THE ADDITIONAL TRANFER PORTS IN THEIR CYLINDERS & THIS IS A HUGE PERFORMANCE UP-GRADE FROM THE FACTORY "WR" MODELS CYLINDER. THE CYLINDER FITS RIGHT INTO THE LOWER END OF THE WR'S FOR THE PERFORMANCE GAIN AND ALL THAT IS NEEDED IS A SIMPLE JETTING CHANGE TO THE CR/XC CARB SPECS.
THE FOLLOWING IS INCLUDED.
NOS 16-11-850-01 HEAD.
NOS 16-11-725-01 CYLINDER FEATURING THE EXTRA TRANSFER PORTS
