Northern Lights M864 / OM864W — Injection Pump Timing Check

Adjustments · Fuel injection pump

For the Northern Lights M864 / OM864W, from the Northern Lights operator's manual.

Applies to: Northern Lights M864

Procedure

1. Bleed air from the fuel system.
2. Remove the fuel injection line from the No. 1 fuel delivery valve on the injection pump.
3. Pressurize the system with the hand primer pump.
4. Slowly rotate the crankshaft by hand clockwise until fuel just begins to rise in the No. 1 delivery valve.
5. The crankshaft pulley notch mark for 13° Before Top Dead Center (BTDC) should align with the timing pointer; if not, the pump needs to be timed.

Full service-parts list: Northern Lights M864 →

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.

More Northern Lights repair guides →