2006 Yamaha Motorsports Apex Mountain Owners Manual - Page 38
2006 Yamaha Motorsports Apex Mountain Manual
Page 38 highlights
ESU04580 Engine oil level The engine oil level should be checked before each use. CAUTION: @ Do not run the engine with too much or not enough oil in the oil tank. Oil could flow into the air filter case and the engine could be damaged. @ Checking the engine oil level 1. Place the snowmobile on a level surface and apply the parking brake. 2. Start the engine, warm it up for 10-15 minutes, and then turn it off. NOTE: @ G G @ The engine can also be warmed up by operating the snowmobile for 10-15 minutes. After operating the snowmobile, allow the engine to idle for at least 10 seconds before turning it off. 3. Remove the shroud and the right side cover. (See pages 8-5-8-7 for removal procedures.) 4. Disconnect the oil level gauge coupler 1. CAUTION: @ Disconnect the oil level gauge coupler before removing the oil level gauge/dipstick. Otherwise, the cable can twist and break. @ 5. Remove the oil level gauge/dipstick 2, wipe it clean, insert it back into the oil filler hole (without screwing it in), and then remove it again to check the oil level. NOTE: @ The engine oil should be between the "F" 3 and "E" 4 level marks on the oil level gauge/dipstick. @ 6. If the engine oil is below the "E" level mark, add sufficient oil of the recommended type to raise it to the "F" level mark. (See page 6-2 for the recommended oil.) 6-3