Craftsman 536881851 Engine, Check the spark plug every twenty, Porcelain is cracked, or every

ENGINE

LUBRICATION

Check the crankcase oil level before starting the engine and after each eight

(8)hours of continuous use. See Figure 18. Add S.A.E. 5W30 motor oil as needed. Synthetic 5W30 is accept- able for all temperatures. Tighten fill

cap/dipstick securely each time you check the oil level.

Oil Fill Cap/DipsUck

Oil

NOTE:

Figure 18

Change the oil every fifty (50) hours or at least once a year if the snow thrower is not used for fifty (50) hours.

TO CHANGE ENGINE OIL

1.Position the snow thrower so that

the oil drain plug is at the lowest point on the engine.

2.When the engine is warm, remove the oil drain plug and the oil fill cap/dipstick (see Figure 18). Drain the oil into a suitable container.

,After draining all the oil, reinstall the oil drain plug securely.

4.Fill the engine crankcase with the recommended motor oil, pouring slowly. DO NOT OVERFILL. See =1"oAdd Oil" in the Operation Sec- tion.

SPARK PLUG		. Before installing the spark plug,
Check the spark plug every twenty-		coat the threads lightly with oil for
		easy removal, Tighten the spark
five (25) hours.	Replace the spark plug

if the electrodes are pitted or burned, if	plug to a torque of 15 foot-pounds.
	Feeler Gauge
the porcelain is cracked, or every 100
	0.030"
hours of use.

1.Make sure the spark plug is clean. Clean the spark plug by carefully scraping the electrodes (do not sand blast or use a wire brush).

2. Check the spark plug gap with a		Spark Plug
feeler gauge and	reset gap to 0.30"
		Figure 19
if necessary. See	Figure 19.

2O