What was found
(CAN) AIRCRAFT LIMITING FUEL ON RIGHT HAND ENGINE AT 620 DEGREES CELSIUS. TEMPERATURE LIMITER SYSTEM WAS DEFERRED, AND SYSTEM DISABLED BY PULLING TEMPERATURE LIMITER CIRCUIT BREAKER. UNKNOWINGLY, THIS ALSO DISABLED THE WATER METHONAL ON THE SAME SIDE. NO INDICATION OF THIS IN MEL OR MM. ON TAKEOFF, THE AIRCRAFT DID NOT HAVE WATER METHONAL ON RIGHT SIDE, BUT OK ON LEFT CAUSING A MAJOR YAW AND REDUCED POWER.