10. Remove foam pre-cleaner(A, Figure 223) from air filter
(B).
223
11. Gently tap air filter on a hard surface to loosen dirt and
debris. Carefully clean with a soft bristle brush and a
portable hand vacuum as necessary.
12. Use a soft bristle brush and a portable hand vacuum to
remove all dust and dirt fromback plate, metal retainer
plate, and air filter cover.
NOTE: Exercise care to keep dust and dirt out of air
intake. Inadequate precautions can result in engine
damage.
13. Gently wash foam pre-cleaner in warm, soapy water.
Thoroughly rinse with clean water and allow to air dry
completely.
14. Carefully inspect foam pre-cleaner and air filter. Replace
parts if they cannot be adequately cleaned or if any
damage is observed.
15. Install foam pre-cleaner onto air filter.
16. Place air filterwith foam pre-cleaneronto air
cleanerback plate(C).
17. Fit metal retainer plate(D) evenly and snugly into air
filter.
18. Install thumb nut(E) onto threaded rod and tighten until
snug.
19. Install air filter cover(F).
20. Install plastic cap(G) to secure air filter cover and tighten
until snug.
Optional Oil Guard System
1. Install oil bypass cover as follows:
A. Apply a thin film of clean engine oil to seal ring (A,
Figure 224). Install seal ring into groove on bypass
cover (B).
B. Hand start bypass cover into crankcase bore. Be
sure seal ring is not pinched when it first contacts
crankcase.
C. Tighten bypass cover to 165 lb-in (18.6 Nm).
D. Using an absorbent cloth, wipe up any residual oil
from around cover.
224
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