Cub Cadet ST 100 Operation Manual - Page 13

Carbon Canister Filter Service The foam carbon canister filter must be cleaned or replaced once a year or every 100 operating hours; more often if used in extremely dusty conditions. 1. Remove outer engine shroud (if equipped) and recoil starter housing as shown in Figure 6-3. Outer Engine Shroud Recoil Starter Housing 4. To clean foam element, wash in mild liquid detergent and water. Squeeze or press the foam element to rinse out dirt and water. Do not twist, this could damage or tear the foam element. Allow to dry thoroughly before using. Oil the foam element with a light engine oil. 5. Carefully place foam filter back into canister assembly and reattach the rubber cap removed earlier. 6. Snap the carbon canister filter assembly back into place under the inner engine shroud. See Figure 6-5 inset. IMPORTANT: Be sure the angled nipple points upwards into the shroud to avoid interference with the autochoke linkage. Angled Nipple Figure 6-3 2. Lift up inner engine shroud and carefully pull out carbon canister filter assembly from under shroud as shown in Figure 6-4. Inner Shroud Foam Filter Cap Figure 6-5 7. Place the inner engine shroud back onto the engine. Fasten the recoil starter housing back down and reattach the outer engine shroud. IMPORTANT: Be sure not to pinch/kink any of the vent lines when re-installing the engine shroud. A pinched/kinked vent line will cause the engine to stall. Figure 6-4 3. Remove cap from end of canister and pull out round foam filter from inside the assembly. See Figure 6-4. Clean element or replace when damaged. Section 6 - Maintenance 13