Installing a CEMOTO Motor — Step-by-Step
Wiring orientation, phase order, mounting and the first-run checks that confirm you got it right.
Applies to: D-series
How to Install a CEMOTO Motor | Step-by-Step Tutorial — if the player does not load, open the video on YouTube.
What you need
| Tool | Notes |
|---|---|
| Socket set | Axle nuts and mounting hardware |
| Torque wrench | See Torque Reference |
| Insulating tape / heat shrink | For any repaired cable run |
| Cable ties | Replace the ones you cut |
⚠ Warranty note. Opening a motor voids the warranty on that part. Follow CEMOTO support's instructions for a warranty replacement. See Warranty Claims.
Steps
- Support the bike so the wheel is clear of the ground.
- Route the motor cable before mounting. Fit the cable into its frame guides first — it is far harder once the wheel is in place.
- Seat the motor in the swingarm/dropouts, checking any spacers or torque washers go back in the same positions.
- Fit the axle nuts finger-tight, then torque to specification with the wheel aligned.
- Connect the three phase wires. They are color-matched — match them exactly. Wrong phase order causes rough running or no rotation at all.
- Connect the hall sensor plug. Small, multi-pin, easy to seat only halfway. Push until it clicks, and check no pin has backed out.
- Refit the chain / belt and set the tension — approximately 15 mm slack where a chain is used.
- Check the brake runs true and does not bind on the disc.
- Rotate the wheel by hand before applying power. It must turn freely with no rubbing.
- Power on and test at walking pace, then check for error codes. E07 here means the phase or hall connection needs rechecking — see E07.
Watch out for
- Cross-threading an axle nut. Start them by hand, always.
- Getting phase order wrong. Match the colors; do not trust that they were right before.
- Leaving the hall sensor plug half-seated. It produces an intermittent E07 that is maddening to trace later.
- Reusing cut cable ties — replace them.