After digesting all the comments and advice, I have decided not to touch the wiring in the switch and will cut the existing cable about 18" from the switch and then add the new extended cable using the orange rubber plug connector. Add on another crimp (or any suitable connector) on your new, extended cable. Loop the remainder of the cable through the original gap where the S-shaped part went. Run through the other end of your new cable into the aluminium crimp to close it off. This attaches the extended cord to the pull bar.

Cables | eSpares Lawnmower Cables | eSpares

Connect both the old and new wire segments; as below (we recommend doing this on the ground to avoid injuries and damage to yourself or surfaces) Heat up the exposed metal wires with your soldering iron, and apply some solder to the connection of wires- ensure that this fully fuses and strengthens your wires We sell mower cables including drive cables, throttle cables and electric mains cables for many lawnmower makes including AL-KO, Flymo, Hayter, John Deere and more. If you've severed your lawnmower power cables- stop. Don't attempt to use it until you're confident that the safety/fix system you've implemented for your lawnmower cable is effective against water damage, tugging, and further damage to your electronics. Soldering is a temporary, relatively easy, yet unreliable solution to fixing your power cord- so we've listed three different ways for you to repair your cut lawnmower power cord/broken power cable.All Mower Parts UK supply genuine and non genuine replacement lawnmower throttle cable and throttle assemblies, for petrol lawnmowers, petrol rotary lawnmowers and petrol cylinder lawnmowers Soldering is a process where items are fused together by a melting method and the addition of filler metal into the joint. The filler metal would need a lower melting point than the metal used for adjoining. The way in which soldering is distinguished from welding, for example, is that it doesn't involve melting the actual workpieces. Clean up any wire, and slide some heat-shrink tubing onto one end of the wire- space these far away from the wire ends to prevent premature shrinking

Flex Connector 10A 2 Core Orange | Toolstation Flex Connector 10A 2 Core Orange | Toolstation

This method is perhaps the one many people opt for first. It involves shortening the wire slightly, and reconnecting it with a wire nut, then sealing it up with electrical tape. All Mower Parts UK offer a wide range of replacement lawnmower cables throttle cables and throttle cable assemblies, for petrol lawnmowers, petrol self propelled lawnmower, petrol rotary lawnmowers and petrol cylinder lawnmowers for brands of lawnmowers like Mountfield, Honda, Viking, Champion 40, Castelgarden, Sovereign,Stiga, Husqvarna, McCulloch, Macallister, Screwfixand other leading brands. Now that you've fixed it, you need to test it and ensure it's safe and working. As the severed ends of the crushed cables will be sharp, we recommend cutting them off. Align and insert both of your cables within the aluminium crimp (or any other correct sort of connector) simultaneously- seal by striking the flatter edge of the crimp with your hammer. Fit one of these to the existing cable close to the mower, http://www.screwfix.com/prods/16262...ories/Cable-Connectors/Rubber-Cable-Connector, then fit your new long cable to the other side.

This technique is slightly more advanced but highly preferable to the other methods mentioned. Soldering typically involves the use of a soldering iron and solder. This method is easy and pretty effective- the main issue is the ghastly lump in your cord that you'll be left with afterward!