Quick fixes for faulty electrics
Cut out the problem
If a connector is broken or worn you’ll need to chop it off and replace it. Cut it off using pliers and be sure to leave 5-10mm of wire so you can see the colour of the insulation.
Strip the wire
Remove some plastic insulation using wire stripping pliers to expose the strands beneath. You can also do the job manually by scoring the outer casing with a knife before cutting.
Know your connectors
Bullet connectors have two crimping wings. Crimp the insulation sleeve first then crimp the exposed wire loosely before going down a size to make a firm connection.
Keep soldering on
Using a soldering iron, get the area just hot enough to drip-feed flux into the crimped area. Finally, slide the insulating sleeve up to cover the new join and shrink it to fit using a heat gun.