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Servicing Your Engine
SNOW ENGINE OIL CHANGE PROCEDURE
1. Begin the oil change with a cold engine.
2. Start and run the engine for 1-2 minutes.
3. Turn the engine off.
4. Place the rocker switch in the stop position.
5. Remove the snow safety key.
6. The body of the oil drain tube should be supported as the oil drain plug is removed. Support the
body of the oil drain tube with a 14mm wrench in a clockwise direction. Loosen the 10mm oil drain
plug by turning it counter–clockwise. Remove the oil drain plug and crush washer.
7. Drain the oil completely.
8. Verify the oil drain tube is tight in the engine cylinder block: 25 N-m (220-225 in-lbs.) .
9. Reinstall the oil drain plug and crush washer. The crush washer must be reinstalled between the oil
drain tube and oil drain plug to prevent oil leakage. Tighten the oil drain plug to 17 N-m (145-150 in-lbs.).
10. Refill the crankcase with oil per snow manual instructions.
ENGINE OIL RECOMMENDATIONS
• Engine oil affects performance and service life. Use 4-stroke automotive detergent oil.
• 5W-30 oil is recommended for general use (synthetic oil is an acceptable alternative).
• The SAE oil viscosity and service classification are in the API label on the oil container.
Use API SERVICE category SJ engine oil, or better.
SPARK PLUG MAINTENANCE
F6RTC (Torch) Plug Recommended
Cross References:
• Champing plug cross reference is: RN9YC (some tables show RN9YCC)
• NGK plug cross reference: BPR6ES
• BOSCH plug cross reference is: WR6DC
• NOTICE
Using an incorrect spark plug may cause engine damage.
Changing the Spark Plug
WARNING
The heater box may be hot and must be allowed to cool completely before touching.
Muffler and components inside heat shield may be HOT! Allow to cool before servicing the
spark plug or any area inside the heat shield.
1. When engine is cool, remove safety key switch.
2. Disconnect the spark plug cap and remove any debris from the spark plug area with high pressure air.
3. Remove the spark plug with a 13/16-inch spark plug wrench.
4. Inspect the spark plug. Replace it if the electrodes are worn or if the insulator is cracked or chipped. Spark plug gap should be set
to 0.027 - 0.030 inches.
5. Install the spark plug carefully to avoid cross threading. Screw in spark plug by hand until it stops turning.
6. Tighten the spark plug with a 13/16-inch spark plug wrench. Tighten 1/4 turn after the spark plug seats.
• NOTICE
A loose spark plug can overheat and damage the engine. Over-tightening the spark plug can damage the threads in the cylinder head.
7. Attach the spark plug cap. Ensure spark plug cap snaps into place securely.
8. Reinstall Safety Key Switch before attempting to start engine.
rev. 7/7/10
CONTINUED
Liquid Combustion Technology, LLC GenII 208cc Snow Engine Manual 9
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