The 400cc Step Up — Where Idle Quality Gets Noticed
CFMOTO's 400 Series represents a significant step up in displacement and rider expectation. These bikes are often used for longer commutes, weekend touring, and occasional highway runs — contexts where a rough or unstable idle is not just annoying, but a sign that something needs attention. The LOREADA IAC Stepper Motor OE C006B is the direct replacement for CFMOTO 400 Series EFI systems, restoring the smooth, load-responsive idle that these bikes are designed to deliver.
Higher Displacement, Higher Idle Air Demand
A 400cc single or parallel-twin engine requires more bypass airflow at idle than a 125 or 250 — and the C006B is sized accordingly. Its bypass capacity and step resolution are calibrated for the 400 Series throttle body, ensuring the ECU can maintain stable idle across the full range of operating conditions: cold start, warm idle, A/C-equivalent loads from heated grips or USB charging, and the transition back to idle after highway cruising.
Key Specifications
- OE Reference: C006B
- Application: CFMOTO 400 Series (EFI models)
- Connector: CFMOTO-spec plug, direct fit
- Replacement type: Direct OEM drop-in
- QA: Bypass flow rate, step accuracy, and seal integrity tested for 400cc duty cycles
Installation Notes
On CFMOTO 400 Series models, the IAC valve is typically located on the throttle body assembly, accessible after removing the airbox. Inspect and clean the bypass port before fitting the C006B. After installation, clear any stored idle fault codes and perform the ECU idle relearn with the engine fully warmed up. Given the 400's higher idle air demand, allow two or three warm-up cycles for the ECU to fully adapt to the new valve.
Why LOREADA?
LOREADA covers the full CFMOTO displacement range — from 125 to 450cc — with model-specific IAC solutions. The C006B is not a scaled-up version of a smaller-displacement part; it's engineered specifically for the 400 Series airflow requirements, with the same QA standards applied across the entire CFMOTO IAC family.
Shop This Product
Order the LOREADA IAC Stepper Motor OE C006B for CFMOTO 400 Series and restore confident idle performance to your mid-range CFMOTO.