1981 Honda CB900F — Contacteurs et capteurs

No. It can replace a leaking or electrically faulty switch, but cannot repair a lubrication problem. If the warning stays on with the engine running, stop the engine and verify the cause before riding.

Check pedal return, the switch spring and switch adjustment, then test the switch and wiring. A stretched or misrouted spring or a binding pedal can keep the switch operated. Correct the cause and verify the lamp turns off when the pedal is released.

Compare the rearset’s switch mount, spring travel and electrical connections with the replacement. The stock CB900F application does not verify a changed linkage. The brake light must operate correctly without restricting pedal movement.