How to Replace a Stator Coil on Honda CBF250 (Step-by-Step Guide) - goofitmoto

How to Replace a Stator Coil on Honda CBF250 (Step-by-Step Guide)

Replacing the stator coil on a Honda CBF250 or CBX250 Twister is a common repair when charging problems appear. This step-by-step guide explains how to safely replace the stator coil and restore proper charging performance.

Tools & Parts You Will Need

Before starting, prepare the following tools:

  • Socket wrench set
  • Screwdrivers
  • Torque wrench
  • Engine oil drain pan
  • Gasket scraper (if required)
  • OEM-spec stator coil replacement (31120-KPF-911)

Having the correct stator coil ready will save time during installation.

Tools required to replace stator coil on Honda CBF250

Step 1: Disconnect the Battery

Always disconnect the negative battery terminal before working on the charging system. This prevents accidental short circuits and protects electrical components.

Disconnecting motorcycle battery before stator replacement

Step 2: Remove the Engine Side Cover

  • Drain engine oil if required by your model
  • Remove the left-side engine cover bolts
  • Carefully detach the cover to expose the stator assembly

Take note of bolt locations and lengths during removal.

Step 3: Remove the Old Stator Coil

  • Disconnect the stator wiring connector
  • Remove the mounting bolts securing the stator
  • Carefully lift the stator coil from the engine case

Inspect the stator for burnt windings or damaged insulation — common signs of failure.

Step 4: Install the New Stator Coil

Install a direct OEM replacement stator coil for Honda CBF250 (31120-KPF-911) using factory mounting points.

  • Secure bolts to manufacturer torque specifications
  • Route wiring exactly as the original
  • Ensure connectors are fully seated

This stator is designed as a plug-and-play replacement.

Step 5: Reassemble and Test

  • Reinstall the engine cover (replace gasket if needed)
  • Refill engine oil
  • Reconnect the battery

Start the motorcycle and verify charging voltage at 4,000–5,000 RPM. Voltage should stabilize between 13.5–14.5V.

Installation Tips & Common Mistakes

  • Always inspect the regulator/rectifier before installing a new stator
  • Clean all grounding points
  • Do not reuse damaged gaskets

Proper installation helps prevent premature stator failure.

Recommended Replacement Stator Coil

For reliable results, use a Honda CBF250 & CBX250 stator coil replacement (OEM 31120-KPF-911) designed specifically for 2004–2010 models.

Back to blog

Leave a comment