Free printable · Troubleshooting
GY6 wiring colour and continuity notes sheet
There is no universal wiring colour standard on these machines. This sheet records the one your machine actually uses.
Layout preview of page one. The PDF itself is typeset text, not an image.
Download — free, no email
3 pages. No account, no sign-up, no newsletter. Print it, copy it, hand it to somebody else.
Version v1.0 · September 2026. Opens in your browser's PDF viewer, where you can print directly.
The problem it solves
Wiring colour charts for these machines circulate widely and contradict each other, because there is no standard being followed. Trusting a chart from another machine is how a regulator gets wired to a stator lead. The only reliable record is the one you make with a meter on the machine in front of you.
Who it is for
- Anyone tracing an electrical fault with a multimeter
- Owners rewiring after a previous owner's repairs
- Anyone fitting an aftermarket part whose loom does not match
What is on it
- A wire-by-wire record: colour, from, to, continuity, voltage
- A connector map with space to draw the pin faces
- A note on why colours cannot be trusted between machines
- Basic meter technique for continuity and voltage
How to use it
- 01Disconnect the battery before probing anything you are not deliberately measuring live.
- 02Work one circuit at a time and finish it before starting another.
- 03Record the colour AND the connector position. Colours repeat; positions do not.
Use it with the registry
Other sheets you may want
- GY6 no spark diagnostic chartWorking back along the ignition circuit from the plug, one component at a time, without replacing anything on spec.
- Chinese scooter vacuum hose and fuel line worksheetDraw your own routing before you take it apart. There is no single correct diagram for these machines, and the only one that matters is yours.
Free to print, copy, and share — including in forums, clubs and workshops. If you find a mistake on one of these sheets, tell us and it gets corrected. Every sheet carries a version so you can tell which one you have. All printables.