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7. When oil has drained completely, close the
drain valve.
8. Remove the drain hose (Figure 30).
Note:
Dispose of the used oil at a recycling
center.
Figure 30
1. Oil drain valve
2. Oil drain hose
9. Slowly pour approximately 80% of the
specified oil into the filler tube (Figure 29).
10. Check the oil level; refer to Checking the
Engine Oil Level.
11. Slowly add the additional oil to bring it to the
Full
mark.
Changing the Engine Oil Filter
Replace the oil filter every 200 operating hours
thereafter.
Note:
Change the oil filter more frequently when
operating conditions are extremely dusty or sandy.
1. Drain the oil from the engine; refer to
Changing the Engine Oil.
2. Remove the old filter and wipe the filter
adapter gasket surface (Figure 31).
Figure 31
1. Engine oil lter
3. Pour new oil of the proper type into the center
hole in the new oil filter. Stop pouring when
the oil reaches the bottom of the threads.
Allow a minute or two for the oil to be
absorbed by filter material.
4. Apply a thin coat of new oil to the rubber
gasket on the replacement filter (Figure 32).
5. Install the replacement oil filter to the filter
adapter. Turn the oil filter clockwise until
the rubber gasket contacts the filter adapter,
then tighten the filter an additional 1/2 turn
(Figure 32).
Figure 32
1. Oil lter
3. Adapter
2. Gasket
6. Fill the crankcase with the proper type of new
oil; refer to Changing the Oil.
Servicing the Spark Plug
Check the spark plug(s) after every 100 operating
hours. Make sure the air gap between the center
and side electrodes is correct before installing the
spark plug. Use a spark plug wrench for removing
and installing the spark plug(s) and a gapping
31
Summary of Contents for 74237
Page 7: ...Slope Chart 7...
Page 10: ...107 1860 107 1861 107 1864 107 2102 10...
Page 12: ...106 7492 106 9989 107 8076 1 Fast 2 Slow 3 Neutral 4 Reverse 12...
Page 56: ...Schematics Wire Diagram Rev A 56...
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