8-31234567891011EBU21743Periodic maintenance chart for the emission control systemTIP For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals. For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenanceintervals should be followed. Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,data and technical skills.NO. ITEM CHECK OR MAINTENANCEJOBINITIAL EVERYWhichev-er comesfirstmonth 1 3 6 6 12km(mi)320(200)1300(800)2500(1600)2500(1600)5000(3200)hours 20 80 160 160 3201 * Fuel line Check fuel hoses for cracks or other damage, andreplace if necessary. √ √ √2 Spark plug Check condition and clean, regap, or replace ifnecessary. √ √ √ √ √3 * Valves Check valve clearance and adjust if necessary. √ √ √ √4 * Carburetor Check starter (choke) operation and correct if nec-essary. Check engine idling speed and adjust if neces-sary.√ √ √ √5 * Crankcase breathersystem Check breather hose for cracks or other damage,and replace if necessary. √ √ √
