Northern Lights — Propulsion Engine Starting and Operating
Operation
From a Northern Lights owner's manual covering: L439, L668, M40C, M439, M445, M65C, M668, M99C. Check it applies to your exact model before use.
Applies to: Northern Lights M668
Before you start
- Do not crank starter more than 15 seconds consecutively.
- Never race a cold engine.
Procedure
- Put gear control in neutral.
- Move throttle to full speed position and return to idle.
- Turn key to first position and check voltmeter for battery condition.
- Turn key to starting position; release key when engine starts.
- Run engine at approximately 1000 RPM for 3-5 minute warm-up.
- Check oil pressure above 15 PSI and water temperature not over 200°F.
Specs & values
- Oil pressure above 15 PSI
- Water temperature not above 200°F (94°C)
- Do not exceed 800 RPM when shifting marine gear
- Low idle 850 RPM
Full service-parts list: Northern Lights M668 →
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.