Northern Lights — Changing Oil Filter
Maintenance · Lube oil filter
From a Northern Lights owner's manual covering: L6140A, L6140AL2, M6140A, M6140AL2, M6140QA. Check it applies to your exact model before use.
Applies to: Northern Lights M6140A, Northern Lights M6140AL engine
Before you start
- Overtightening can damage filter housing.
Parts for this job
- LF747 Oil filter Amazon eBay $19.00 FridayParts $26.68
Part numbers from the service-parts list for Northern Lights M6140A. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Use filter wrench to remove old filter.
- Remove and discard old filter gasket.
- Lubricate new filter rubber gasket.
- Screw filter on until gasket meets sealing surface.
- Tighten one-half turn farther by hand only.
- Fill engine with recommended oil.
- Start engine; check for leakage.
- Stop engine; check oil level and add oil if needed.
Tools required
- Filter wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Engine capacity with new oil filter is 10 gallons (38 liters)
Full service-parts list: Northern Lights M6140A →
Source: Northern Lights owner'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.