Northern Lights M773L — Changing Lube Oil Filter

Maintenance

For the Northern Lights M773L, from the Northern Lights operator's manual.

Applies to: Northern Lights M773L

Procedure

1. Use a filter wrench to remove the old filter and dispose of it properly.
2. Make sure the old gasket is removed and discarded; clean the mounting surface.
3. Spread a thin film of engine oil on the new filter's rubber gasket.
4. Screw the filter on the nipple until the gasket meets the sealing surface.
5. Using hands only, tighten one-half turn farther.
6. Fill engine with oil, start and check for leaks; stop, wait 3 minutes and check level.

Full service-parts list: Northern Lights M773L →

Source: Northern Lights operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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