To torque the head on a Suzuki RM125 2-stroke, first ensure the engine is at room temperature and clean the mating surfaces. Use a torque wrench to tighten the cylinder head bolts in a crisscross pattern to ensure even pressure. The typical torque specification for the head bolts is around 18-22 ft-lbs, but always refer to the specific service manual for your model. After reaching the specified torque, recheck the torque after the engine has been warmed up and allowed to cool down.
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