Controls - 18 SK500 Operator’s Manual CMW Item Description Notes 3. Ignition switch To start engine, insert key and turn clockwise. To stop engine, turn key counterclockwise. IMPORTANT: If engine does not start or stalls, turn key to STOP and then restart. 4. Fuel gauge Displays fuel level in tank. Use only unleaded gasoline. Tank holds 6 gal (23 L). 5. Hourmeter Displays engine operating time. Use these times to schedule service. 6. Engine oil pressure indicator Lights when engine oil pressure is low. Also lights briefly when engine is started. Engine will stop. 1. Check oil level. 2. Check for leaks before starting engine.