Pre-operation checks29ESU11070The condition of a snowmobile is the owner’s responsibility. Vital components can start to de-teriorate quickly and unexpectedly, even if the snowmobile remains unused (for example, as aresult of exposure to the elements). Any damage or fluid leakage could have serious conse-quences. Therefore, it is very important, in addition to a thorough visual inspection, to checkthe following points before each ride.NOTE:Pre-operation checks should be made each time the snowmobile is used. Such an inspectioncan be accomplished in a very short time; and the added safety it assures is more than worththe time involved.WARNINGEWS00190If any item in the pre-operation check list is not working properly, have it inspected andrepaired before operating the snowmobile.ESU11080Pre-operation check listITEM CHECKS PAGEFuel• Check fuel level.• Refuel if necessary.• Check fuel line for leakage.23Engine oil• Check oil level in engine.• If necessary, add recommended oil to specifiedlevel.• Check vehicle for oil leakage.49Coolant • Check coolant level.• Add if necessary. 53V-belt • Check for wear and damage.• Replace if necessary. 54Drive guard• Make sure that drive guard is tightened securely.• Check the drive guard mounts for damage.• Make sure that the drive guard is firmly in place.23Brake• Check operation.• If soft or spongy, have Yamaha dealer bleed hy-draulic system.• Check brake pads for wear.• Replace if necessary.• Check fluid level in master cylinder.• If necessary, add recommended brake fluid tospecified level.• Check hydraulic system for leakage.58Air filter• Check that there is no snow under the air filter ele-ment.• If necessary, brush off the snow.47