Panari FS90R Carburetor Kit for STIHL Trimmers | Fits FS90R, FS110R, FS130R, KM Series

Overview and benefits

The Panari FS90R Carburetor Kit is a comprehensive replacement solution designed to restore precise fuel metering and dependable operation on compatible STIHL trimmers and hedge trimmers. Built as an all in one tune up kit, it provides more than a bare carburetor by including essential parts that help you refresh the engine’s intake and ignition flow. The result can be smoother starts, steadier idle, and consistent performance under typical yard work conditions, without promising guaranteed outcomes.

This kit is intended to replace the ZAMA C1Q S174 and STIHL 4180 120 0611 components, and it emphasizes practical use in real world maintenance. Expect components that feel robust in hand and designed to withstand common heat and wear scenarios encountered during mowing season or hedge trimming tasks.

What’s included

• Carburetor
• Air filter
• Fuel filter
• Fuel line
• Spark plug
• Primer bulb
• Gasket set (two gaskets)

Compatibility, usage notes, and tips

• FITS multiple STIHL models including FS90R, FS90, FS100R, FS100RX, FS110R, FS130R and SP/KM series engines
• KM90R and related hedge trimmer engines are listed as compatible as well
• Important caution: this kit cannot replace C1Q S110 or 4180 120 0604 parts
• Check fuel line directions and throttle cable connector during installation to ensure proper fit

Technical specifications

• Mounting hole distance (center to center): 31 mm
• Throttle bore diameter: 14 mm
• Choke bore diameter: 18 mm
• Venturi diameter: 10.5 mm
• Fuel inlet line diameter: 4.2 mm
• Fuel return line diameter: 4 mm

Quality, testing, and materials

Panari engineers the FS90R carburetor with brass components, composite rubber diaphragms, and an anodized aluminum body to resist heat, corrosion, and wear. Each carburetor undergoes a wet flow test to emulate engine environments and verify response before packaging. This attention to material choice and testing supports reliable performance over time while maintaining a manageable maintenance routine.

Why choose Panari

Designed to save time and reduce the need for separate purchases, the all in one kit helps simplify a carburetor refresh. Durable construction and included consumables give a practical, ready to install package for hobbyist maintainers and professional users alike, with potential improvements in fuel delivery and overall engine feel under typical workloads.