Adjusting Throttle and Clutch Cable

Cable condition and adjustment affect both feel and safety. Inspect both cables and adjust as needed before each event.

Throttle Cable (Throttle-by-Cable Cars Only)

Drive-by-wire cars (2023 and newer) do not have a mechanical throttle cable at the pedal — skip this section if your car is DBW.

On throttle-by-cable cars, the throttle pedal connects via cable to the throttle body. Check for smooth, free movement through the full pedal range with no binding or sticking.

With the engine off, press the throttle pedal through its full travel — it should move freely and return crisply.
Inspect the cable routing for any sharp bends, kinks, or chafing.
Adjust freeplay at the barrel adjuster near the throttle body:
- Turn adjuster out to increase freeplay.
- Turn adjuster in to reduce freeplay.
Lock the adjuster locknut after setting.

Clutch Cable

The clutch is cable-operated on all Rush SR models. The cable runs from the clutch pedal through the chassis to the engine.

Check that the pedal moves freely through its full range with no binding.
The cable should have a small amount of slack at the pedal end before resistance is felt — enough that the clutch is fully released at rest, but engagement happens cleanly through pedal travel.
Adjust at the barrel adjuster (at the pedal end or the engine end):
- Turn out to add slack.
- Turn in to remove slack.
Lock the adjuster locknut after setting.

Cable Inspection

Inspect the full length of both cables for:

Fraying or kinking of the inner wire
Cracking or splitting of the outer sheath
Binding at any routing point or bend

Replace cables showing any of these signs. The throttle and clutch cables use different diameter wire and conduit — they are not interchangeable. Carry a spare clutch cable as trackside insurance.