Yamaha YZF-R125 Service Manual: Checking the connections

Check the leads, couplers, and connectors for stains, rust, moisture, etc.

1. Disconnect:

  • Lead
  • Coupler
  • Connector

2. Check:

  • Lead
  • Coupler
  • Connector

Moisture → Dry with an air blower.

Rust/stains → Connect and disconnect several times.

Checking the connections


3. Check:

  • All connections

Loose connection  →  Connect properly.

NOTE:

If the pin "1" on the terminal is flattened, bend it up.

Checking the connections


4. Connect:

  • Lead
  • Coupler
  • Connector

NOTE:

Make sure all connections are tight.

5. Check:

  • Continuity (with the pocket tester)

NOTE:

If there is no continuity, clean the terminals.

When checking the wire harness, perform steps (1) to (3).

As a quick remedy, use a contact revitalizer available at most part stores.

Checking the connections


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