Northern Lights — Using booster batteries
Operation
From a Northern Lights owner's manual covering: 643/673, M643, M673, NL643, NL673. Check it applies to your exact model before use.
Applies to: Northern Lights M643, Northern Lights M673, Northern Lights NL643, Northern Lights NL673, Northern Lights L643 / L673 engine
Before you start
- Battery gas can explode. Keep all flames and sparks away from batteries.
Procedure
- Check battery electrolyte level and add distilled water if necessary.
- Booster and main batteries must have the same voltage rating.
- Connect positive (+) terminal of booster battery to positive (+) terminal of main battery.
- Connect negative (-) terminal of booster battery to ground on the engine block.
- Remove booster battery after starting engine.
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 M643 →, Northern Lights M673 →, Northern Lights NL643 →, Northern Lights NL673 →
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.