Northern Lights 984K / M984 — Bleeding the fuel system
Maintenance
For the Northern Lights 984K / M984, from the Northern Lights operator's manual.
Applies to: Northern Lights M984, Northern Lights 984K engine
Before you start
- Escaping diesel fuel under pressure can penetrate skin; relieve pressure before disconnecting lines and use cardboard or wood, not hands, to search for leaks.
Procedure
- Loosen the bleed nipple on top of the fuel filter.
- Pump the hand primer on the fuel lift pump until pure fuel with no bubbles escapes.
- Tighten the bleed nipple.
- If the engine still will not start, loosen a fuel line at the injector and crank until pure fuel escapes, then tighten; do each line one at a time.
- After starting, use cardboard to check for fuel leaks.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Northern Lights M984 →
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.