PERIODIC MAINTENANCE AND MINOR REPAIR6-96NOTE:If a torque wrench is not available wheninstalling a spark plug, a good estimateof the correct torque is 1/4–1/2 turnpast finger tight. However, the sparkplug should be tightened to the speci-fied torque as soon as possible.CAUTION:ECA10840Do not use any tools to remove or in-stall the spark plug cap, otherwisethe ignition coil coupler may getdamaged. The spark plug cap maybe difficult to remove because therubber seal on the end of the cap fitstightly. To remove the spark plugcap, simply twist it back and forthwhile pulling it out; to install it, twistit back and forth while pushing it in.EAU34002Engine oil and oil filtercartridgeThe engine oil level should be checkedbefore each ride. In addition, the oilmust be changed and the oil filter car-tridge replaced at the intervals speci-fied in the periodic maintenance andlubrication chart.To check the engine oil level1. Place the vehicle on a level sur-face and hold it in an upright posi-tion.NOTE:Make sure that the vehicle is positionedstraight up when checking the oil level.A slight tilt to the side can result in an in-correct reading.2. Start the engine, warm it up forseveral minutes, and then turn itoff.3. Wait a few minutes until the oil set-tles, and then check the oil levelthrough the check window locatedin the bottom-right side of thecrankcase.NOTE:The engine oil should be between theminimum and maximum level marks.4. If the engine oil is at or below theminimum level mark, add sufficientoil of the recommended type toraise it to the correct level as fol-lows.a. Fit the rubber protector on thespecial wrench.NOTE:The special wrench and rubber protec-tor are included in the owner’s tool kit.1. Engine oil level check window2. Maximum level mark3. Minimum level mark4. Engine oil filler cap