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177314260387-0 - Northline Parts

Kawasaki KFX50 Carburetor 15003-S030 for 2003–2005

SKU: NLT1R00992
$43.99 In Stock
$43.99
Sale price  $43.99 Regular price 
Ships for free in 2–4 business days.
Carburetor replacing Kawasaki 15003-S030 / 15003-S004 on compatible 2003–2005 KFX50 youth ATVs.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • 2003 Kawasaki KFX50 KSF50-A1
  • 2004 Kawasaki KFX50 KSF50-A2
  • 2005 Kawasaki KFX50 KSF50-A3

Product Overview

Hard starting, fuel leakage, or choke-only running may follow stale fuel, but intake sealing, compression, spark, tank flow, and safety controls require inspection.

Match cable, choke, intake, airbox, jetting, and every factory throttle limiter before installation.

Key Features & Performance

  • Complete fuel-metering assembly for the stated application
  • Useful when cleaning cannot recover damaged passages, castings, or shafts
  • Application and reference details are provided for comparison

Replaces Part Numbers

  • 15003-S030
  • 15003-S004

Common Uses

  • Replacing a carburetor damaged by stale or contaminated fuel
  • Correcting persistent flooding or bowl leakage after diagnosis
  • Restoring metering when the original body is no longer serviceable

Technical Specifications

  • Product Type: Carburetor
  • System: Carbureted fuel system
  • Condition: New aftermarket

Installation & Fitment

  • Flush the tank, valve, filter, and fuel line before installation
  • Compare cable brackets, choke, boots, ports, fittings, and jetting
  • Set free play and idle, check for leaks, and tune for the engine and elevation

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.

Model, production date, serial number, electrical or fuel-system version, dimensions, installed options, and previous repairs can affect fitment. Compare the original part and application information before purchase.

Frequently Asked Questions

Q: Why does the engine run only with the choke on? A: That often points to a lean condition from restricted fuel flow or an intake leak, so both should be tested.

Q: Will this carburetor be perfectly adjusted out of the box? A: Not for every engine, altitude, intake, or exhaust setup. Final adjustment may be required.

Q: How do I confirm fitment before ordering? A: Match the original reference number where available, then compare the removed part, dimensions, connections, mounting details, model, serial or production information, and package photos.

Q: Is this an original-equipment part? A: No. This is a new aftermarket part. Brand names and reference numbers are used only to identify compatible applications.

Part Summary

keywords: Kawasaki KFX50 carburetor, 15003-S030 carb, KSF50 stale fuel, youth ATV carburetor, KFX50 only runs choke, 2003 2005 Kawasaki carb

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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