ALFUL carburetor tool with 21-teeth spline for precise idle tuning.
ALFUL 20-teeth spline tool for versatile carburetor adjustments on 2-cycle engines.
ALFUL packaging for 530035560 carburetor adjustment tool.
ALFUL tool in hand demonstrating straightforward carburetor adjustments.
ALFUL compatibility list highlighting Poulan, Husqvarna and Stihl compatibility.
ALFUL close-up of spline teeth showing durable construction.

ALFUL

ALFUL Carburetor Adjustment Tool — 21-Teeth + 20-Teeth Splined, 530035560, for 2-Cycle Engines

High-performance patio lawn and garden made for confident daily results

$12.58

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Why customers choose Cera Garden

Precision carburetor tuning for 2‑cycle engines

Meet ALFUL’s Carburetor Adjustment Tool, a dual-spline screwdriver kit designed to fit a wide range of small engines. The 21-teeth spline is the current standard for many models, while the 20-teeth spline covers a broad set of common screws. This combination helps you identify the right fit quickly, reducing guesswork when you service chainsaws, trimmers, blowers, and similar equipment.

What you get

  • 21-teeth spline tool (replacement part number 530035560) for select Husqvarna, Poulan Pro, and more
  • 20-teeth spline tool for Husqvarna 125B/125BVX blowers and 330LK/130L/130C trimmers
  • Clear guidance to match screw type before purchase to ensure proper fit
  • Compatibility with many brands such as Sears, Craftsman, Poulan, Husqvarna, Weedeater, Echo, Toro, Ryobi

How to use

  • Identify the carburetor screw type on your engine and compare it with the two spline options
  • Attach the appropriate tool securely to the adjustment screw
  • Gently turn to adjust idle speed and fuel-air balance, then test engine response
  • Check for steady idle and smooth operation after the adjustment

Why choose this kit

Designed for broad compatibility and practical use, this kit supports on-site maintenance and home repairs. While outcomes vary by engine, a proper adjustment can help tailor performance characteristics without making guarantees. Note that WAL-BRO carburetors may require a different tool, and this kit updates the former 7-teeth configuration to the current 21-teeth standard.

Compatibility notes

The tool set is intended for most 2-cycle engines and works across a range of popular brands. Review your model’s screw type to confirm the right spline before purchasing.

FAQ

Q: What engines is this carburetor adjustment tool compatible with?

A: Fits most 2‑cycle engines across Poulan, Husqvarna, Stihl, Echo, Craftsman, Weedeater, and more.

Q: What spline configurations are included and how do I choose?

A: Includes 21-teeth and 20-teeth spline tools; match your screw type before attempting adjustments.

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