2001-2005 Yamaha WaveRunner GP800R Factory Service Manual, Page 343Get this manual
E NOTE: Wipe off any water on the spark plug or inside the cap before installing the spark plug capPush the spark plug cap down until it clicksG If torque wrench is not available when you are fitting new spark plug, good estimate of the correct torque is 14 turn to 12 turn past finger tightHave the spark plug adjusted to the correct torque with torque wrench as soon as possible
WARNING
Be careful not to damage the insulator when removing or installing spark plugA damaged insulator could allow sparks to escape, which could lead to explosion or fire