WM 80 Maintenance
wc_tx000520gb.fm 23
3.5 Disc-Type Air Filter
See Graphic: wc_gr002876
The disc-type air filter with oil-wetted foam precleaner is used on BPS
1330, BPS 1350, BVPN 50, and the BHF 30S. To service the filter:
3.5.1 Close the carburetor choke. Loosen the clamp (1) around the
carburetor and remove the precleaner housing (2).
3.5.2 Remove the metal screen (3) from the carburetor and inspect it.
Replace the screen if it is heavily soiled or damaged. The screen can
be cleaned by tapping it against a firm surface or by using low-
pressure (30 psi) compressed air.
3.5.3 Remove the retainer (4) and the foam precleaner (5) from the housing
and inspect. Replace the precleaner if it appears heavily soiled or
damaged. The precleaner can be cleaned by using a mild detergent
and warm water. Rinse it thoroughly and dry it with a lint-free cloth.
3.5.4 After cleaning, soak the precleaner in clean engine oil (SAE 30W),
squeeze out excess oil, and reinstall the filter.
wc_gr002876
1
2
3
4
5