2006-2009 Suzuki LT-Z50 QuadSport ATV Factory Service Manual, Page 21Get this manual
PERIODIC MAINTENANCE
SPARK PLUG INSTALLATION
To avoid damaging the cylinder head threads; first, tighten the spark plug by hand and then tighten it to the specified torque using the spark plug wrench Tighten the spark plug to the specified torqueSpark plug: 11 Nm (1.1 kgf-m, 8.0 lb-ft)