Automotive carburettor replacement designed to make air fuel mixture tuning straightforward, the EBTOOLS Carburetor Mixture Screw Set aims for repeatable adjustments. That brings confidence when chasing a crisp idle and dependable throttle response on track or trail. Will the screws hold settings and resist corrosion under demanding use?
⚡ At a Glance
- • Adjustment Precision: Numerically calibrated shaft for clear reference when tweaking mixture settings
- • Best for: Riders and mechanics with Keihin FCR or FCR-MX carburettors who tune idle and mixture
- • Not ideal for: Carburettor systems that are not Keihin FCR or FCR-MX compatible
Numerically calibrated for repeatable tuning. Compatible with Keihin FCR and FCR-MX carburettors.
Repeatable tuning - with numerically calibrated shaft
Marked calibration on the shaft records positions so each adjustment can be returned to precisely, letting settings be replicated after track or trail trials. The numeric reference functions as basic tuning memory without extra tools.
Easier and faster fine-tuning during setup and after maintenance, reducing guesswork and downtime.
Corrosion resistance - with anodised aluminium finish
Anodising creates a hard oxide layer on the CNC machined aluminium surface, which reduces corrosion and wear in harsh environments. The coating also keeps thread action smooth over repeated adjustments.
Screws remain serviceable in wet or salty conditions, so adjustments stay reliable over time.
Stable settings - with vibration-resistant o-ring
A fitted o-ring presses against the screw body to prevent gradual back-out under engine vibration, maintaining mechanical engagement and tuning accuracy. Precision machining ensures a snug fit without excess play.
Idle and mixture adjustments hold up under hard riding, cutting the need for frequent rechecking.
✨ The 4 Key Reasons for EBTOOLS Carburetor Mixture Screw Set
- Anodised aluminium finish - Resists rust and maintains smooth thread action long-term
- Precision CNC machining - Provides tight tolerances for dependable fitting and consistent engagement
- Vibration-resistant o-ring - Keeps mixture settings steady during hard riding and vibration
- Lightweight aluminium body - Reduces added weight while remaining strong and durable
📋 Technical Details at a Glance
- Category: Carburettor mixture screw set
- Brand: EBTOOLS
- Material: CNC machined aluminium
- Finish: Anodised finishing treatment for rust-proofing
- Fitment: Fits Keihin FCR & FCR-MX carburettors
❓ Frequently Asked Questions
Q: Will these screws fit Keihin FCR carburettors?
A: Yes, they are specified to fit Keihin FCR and FCR-MX carburettors and are described as compatible with many common 4-stroke models.
Q: Are the screws resistant to corrosion?
A: Yes, an anodised finishing treatment is used to make the aluminium rust-proof and increase durability.
Q: Will settings stay in place under vibration?
A: Yes, an o-ring design is included to resist engine vibration and help maintain accurate mixture settings.
🏆 Our Verdict
The EBTOOLS Carburetor Mixture Screw Set is well suited to riders and mechanics who tune Keihin FCR-style carburettors and want more precise, repeatable adjustments. The clear selling point is the combination of numerical calibration, anodised CNC-machined aluminium and a vibration-resistant o-ring for durable, stable tuning. Expect long-term value from robust materials and easier set-up and re-checks over time.
