Chapter 2. Once you've tried the original power inverter with the mine bike, you'll need to explore the junk pile and recreate it.
You will need to go and talk to Doc about women to get a bunch of hints (x4).
The correct solution is:
* Triangle body - Cobalt coloured muff - Clamping bushing - Bevel with 2 spokes
* Round body - Emerald coloured muff - Screw on bushing - Bevel with 4 spokes
* Cuboid body - Mauve coloured muff - Push on bushing - Bevel with 3 spokes