Keyster FS-5598NU Carburetor Fuel Condition Kit – Fits Suzuki GSX400X Impulse GK71E (ML/MR Side)

Rebuild your Suzuki GSX400X Impulse (GK71E) with precision using the Keyster FS‑5598NU Carburetor Fuel Condition Kit, crafted in Japan for the AISAN 2-barrel carburetors used on the middle-left (ML) or middle-right (MR) side of this unique four-carb setup. Whether restoring, tuning, or performing maintenance, this all-in-one kit includes every component you need to overhaul one side of your carburetor system. 🔩 Exact Fit For:

Motorcycle: Suzuki GSX400X Impulse

Frame Code: GK71E

Carburetor Type: AISAN 2-barrel (ML / MR side)

Quantity: Kit for one side only

For LH / RH side, order Keyster FS‑5598NS 🛠 Full Kit Components:

Float Chamber Gasket

Main Jets (2 per size): #93 / #95 / #98 / #101 / #105 / #110

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

Jet Needles (2 each of 4 sizes): 5C15 = Y694‑S

Needle Jets x2

Needle Valve (#2.5)

Pilot Screws x2

Starter Plunger

E-Clips x8

Springs x2

Drain Screw

O-Rings x2 ✅ Why This Kit is Essential for Your GK71E:

Designed specifically for AISAN 2-barrel carbs on the GSX400X Impulse

Complete tuning range for jetting and needle adjustments

Ideal for vintage JDM motorcycle restoration or performance maintenance

Japanese-manufactured components ensure OE-quality fit and reliability

Compatible with classic GSX400X Impulse multi-carburetor setups (ML/MR) 🔧 Additional Notes:

Sold per side: Price is for one carburetor only (ML or MR)

For full system overhaul, order FS‑5598NU FS‑5598NS

Instruction manual may be included in Japanese