8-158Tightening torque:Final transmission oil drain bolt:15 Nm (1.5 m·kgf, 10.8 ft·lbf)5. Add the specified amount of the recommend-ed final transmission oil, and then check theoil level.NOTICEBe sure no foreign material enters the finaltransmission case.6. Install and tighten the oil filler cap.7. Check the final transmission case for oil leakage.If oil is leaking, check for the cause.Recommended final transmission oil:See page 10-1.Oil quantity:0.30 L (0.32 US qt) (0.27 Imp.qt)Cleaning the air filter elementThe air filter element should be cleaned at the in-tervals specified in the periodic maintenance andlubrication chart. Clean the air filter element morefrequently if you are riding in unusually wet or dustyareas.TIPThere are check hoses at the bottom of the air filtercase. If dust or water collects in these hoses, empty1. Air filter case check hose (left)1them and clean the air filter element and air filtercase.