How to Adjust Fast Idle on a Holley 4 Barrel Carb (Choke Idle Screw) скачать в хорошем качестве

How to Adjust Fast Idle on a Holley 4 Barrel Carb (Choke Idle Screw)

Does your Holley 4 barrel carb idle too high or too low on a cold start? That’s a classic fast idle (choke idle) adjustment issue. In this video, I’ll show you exactly how to fix it. What you’ll learn in this video: -The difference between the fast idle (choke idle) screw and the curb idle (hot idle) screw -Why this adjustment must be made with the engine off -How to access the hidden screw (requires opening the throttle linkage) -The only tool you need (¼" wrench) -Step-by-step on how to raise or lower your fast idle RPM -A live demonstration showing my carb idling at ~1000 RPM after adjustment Pro tip: Be ready with your wrench before opening the throttle linkage because each unnecessary stroke of the accelerator pump can flood the engine. This quick adjustment will make your Holley carb cold starts smoother and prevent your engine from racing or stalling. 0:00 Symptoms – Fast idle too high or too low on cold start 0:12 Fast idle vs. curb idle screw explained 0:55 Important warning - engine OFF for this adjustment 1:00 How to access the hidden fast idle screw (passenger side) 1:06 Tools needed (¼" wrench) 1:12 Adjusting the screw - raise or lower fast idle RPM 1:43 Review from wider angle shot 1:55 Pro tip - how to avoid flooding the carb while adjusting 2:14 Demonstration – engine idling at ~1000 RPM after adjustment 👉 If this video helped you, please like, subscribe, and share for more Skills My Dad Taught Me on Holley carb tuning and DIY fixes.