Keyster FS-5598NS Carburetor Fuel Kit – Fits Suzuki GSX400X Impulse GK71E (LH or RH Side)

Restore your Suzuki GSX400X Impulse (GK71E) to peak performance with the Keyster FS-5598NS Carburetor Fuel Condition Kit, designed for AISAN 2-barrel carburetors. Whether you're tuning or fully rebuilding your carburetor, this Japanese-made overhaul kit provides all the essential parts to bring back throttle response, fuel efficiency, and smooth idling.

🔩 Exact Fit for:

• Motorcycle: Suzuki GSX400X Impulse

• Frame Code: GK71E

• Carburetor Type: AISAN 2-barrel (Left-hand or Right-hand side)

👉 Note: This kit is for one side only (LH or RH). To rebuild both carbs, purchase both FS-5598NS and FS-5598NU.

🛠 Complete Overhaul Kit Includes:

• Float Chamber Gasket

• Main Jets (2 per size): #89 / #91 / #94 / #97 / #101 / #106

• Pilot Jets (2 per size): #33 / #34 / #37

• Jet Needles (4 sizes, 2 each – 5C15 / Y694-S)

• Needle Jets x2

• Needle Valve (#2.5)

• Pilot Screws x2

• Starter Plunger

• E-Clips x8

• Springs (for screws and components)

• Drain Screw

• O-Rings x2

✅ Perfect For:

• GSX400X Impulse carburetor restoration

• Classic JDM motorcycle tuning

• Precision fuel delivery adjustments

• Motorcycle enthusiasts and vintage rebuilds

🔧 Why Choose Keyster FS-5598NS?

• Precision-manufactured in Japan

• OEM-level components for long-lasting performance

• Comprehensive jetting options for fine-tuning fuel delivery

• Designed for AISAN carburetors used on the GK71E platform

• Note: If there may be an instruction manual included, it will be written in Japanese.