Periodic maintenanceECS00461CAUTION:• When adding the engine oil, be carefulnot to fill above the “H” level mark on thedipstick.• Use only 4-stroke engine oil.• Make sure that no foreign material en-ters the engine oil tank.7. Insert the dipstick into the oil filler hole,and then tighten the oil filler cap.8. Connect the oil level gauge coupler.9. Install the right side cover and the shroud.To change the engine oil (without oil filter car-tridge replacement)NOTE:It is recommended to have a Yamaha dealerchange the engine oil.1. Place the snowmobile on a level surface,and apply the parking brake.2. Start the engine, warm it up for severalminutes, and then turn it off.3. Remove the shroud and the right sidecover. (See page 45 for removal proce-dures.)4. Remove the bottom panel and the rightlower cover.1. Bottom panel541. Right lower cover5. Place an oil pan under the oil tank to col-lect the used oil.6. Disconnect the oil level gauge coupler.1 . Oil level gauge coupler2. Oil filler cap7. Remove the oil filler cap and drain bolt todrain the oil from the oil tank.1 . Engine oil drain bolt (oil tank)8. Place an oil pan under the engine to col-lect the used oil.