Kawasaki DFI Code 62: Subthrottle Valve Actuator — Fix
On Kawasaki motorcycles and scooters, DFI service code 62 means a fault in the subthrottle valve actuator — the small motor that moves the ECU-controlled secondary throttle valves.
- Applies to
- Kawasaki motorcycles
- Est. repair cost
- $40 – $300
- Time to fix
- 30–90 minutes
What it means
Usual causes are a seized or failed actuator motor, a loose/corroded connector, or damaged wiring. This is a Kawasaki DFI (Digital Fuel Injection) service code, read through the FI light or the bike’s service/diagnostic mode. It applies to Kawasaki FI models such as the Ninja, Z, Versys, and ZX range. Note: Kawasaki service-code numbers can vary by model and year, so always confirm against your model’s service manual — the mapping here reflects common Kawasaki DFI models. After the fault is repaired the code is kept as a stored "history" code; clear it through Kawasaki’s service/diagnostic mode so the FI light goes out.
Symptoms
- FI light on with service code 62
- Reduced or soft power delivery
- Rough response at partial throttle
How to fix it
- 1
Inspect the actuator connector and wiring
1. Locate the subthrottle valve actuator on the throttle body. 2. Reseat the connector and check the harness.
- 2
Test and replace
1. Check that the actuator moves the valves freely (no binding). 2. Replace the actuator if seized or unresponsive, then clear the code.
Frequently asked questions
Why does my Ninja feel down on power with code 62?
The ECU keeps the secondary throttles in a safe (partly closed) position when the actuator faults, which softens power until it’s repaired.
Last updated July 15, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.