HOW TO CLEAN THE AIR FILTERS
Some engines have two filters, an outer foam filter around an inner
paper filter. Clean the air filters every 50 hours. If you operate in
dirty conditions, service more often.
11. Assemble the air filters with the nut.
12. Installthe cover. Fasten the cover withthe
NOTE: Never run the engine with the air filters removed. The air
filters will help protect the engine against wear. For the correct
filter, see the parts list for the engine.
Remove the knob from the cover (Figure 19).
Remove the cover from the air cleaner.
Remove the nut from the filters.
Remove the air filters.
Clean the inside of the base and the cover with a cloth.
Remove the foam filter from the paper filter.
if equipped, wash the foam filter in a detergent and water solu-
tion. To remove the water solution, tightly roll the foam filter in
a dry cloth. Remove the foam filter from the cloth. Completely
dry the foam filter.
Do not wash the filters
solvents that will burn.
Evenly apply SAE 30W oil to the dry foam filter.
To clean the paper filter, lightly tap the paper filter against a
hard flat surface.
10. if the paper filter is very dirty, replace the paper filter.
Foam Filter "
HOW TO CHECK
THE SPARK PLUG
Check the gap of the spark
plug with a feeler
(Figure 20). The correct gap is 0.030".
For easy starting and good performance,
replace the spark
plug every two years.