Use a torque wrench with the correct setting for your motor.
See related link.
The 1995 Geo Metro spark plug torque specification is 20 pounds. You should torque the spark plug intent pound intervals.
spark plug torque for a Toyota 2.4 is 95 inch/lbs
A spark plug, tork is something that sparks to run but the torque gives it extra power because it is a cadillac
The spark plug torque spec range is between 6 and 10 ft/lbs.
The spark plug torque on a 1992 Honda Accord would be approximately 13 lbs. The gap for the spark plugs is 1.1mm.
Check the service manual for proper torque spec.
A champion RC12YC spark plug is 14mm thread diameter. The torque for this size is 18-22 foot-pounds (25 to 30Neuton·meters)
The torque for spark plugs is 18 N*m or 13 ft*lbf.
15Nm
The torque is 8-15 ft./ lbs.
Spark Plug Gap is .035, Torque then to 20 foot pounds.
It depends on what type of spark plug you have. Go to www.ngksparkplugs.com/techinfo/spark_plugs/installation.asp to see a guideline of torque specs for plugs. Those are from NGK, but will cover any other spark plug as well.