2001-2002 Yamaha XLT800 WaveRunner Service Manual, Page 82Get this manual
INSP ADJ
POWER UNITELECTRICAL
3Measure: Spark plug gap Out of specification RegapSpark plug gap: 0.70.8 mm (0.0280.031 in)
4Tighten: Spark plug Spark plug: 25 (2.5 kgf m, 18 ft lb)
NOTE: Before installing the spark plug, clean the gasket surface and spark plug surfaceAlso, it is suggested to apply thin film of anti-seize compound to the spark plug threads to prevent thread seizureG If torque wrench is not available, good estimate of the correct tightening torque for new spark plug is to finger tighten the spark plug and then tighten it another 14 to 12 of turn b