Kendwin FS90R Tune Up Kit for FS Trimmers — Air Filter, Fuel Filter, Primer Bulb & Spark Plug

Kendwin FS90R Tune Up Kit — essential maintenance for FS-series trimmers

Refresh your compatible trimmer with Kendwin's FS90R Tune Up Kit, a compact bundle designed to support smooth starts, clean airflow, and steady ignition. This kit offers a clear path to easier maintenance and dependable performance in everyday yard work, without the guesswork of hunting for individual parts.

Each component is selected to address common wear points on FS-series engines, helping you stay on top of routine service. When you lift the parts from the packaging, you’ll notice the crisp feel of fresh components, ready to install and renew your tool’s responsiveness during use.

What’s inside

• Air Filter
• Fuel Filter
• Primer Bulb
• Spark Plug

Compatibility and coverage

• FS87, FS90, FS90R, FS100, FS100ARX, FS110, FS130, FS310
• FS87R, FS100R, FS110R, FS130R
• FC100, FC110, FC90, FC95, FR130, FT100, FX130
• HL100, HL90, HL95, HT100, HT101, HT130, HT131
• KM100, KM100R, KM110, KM110R, KM130, KM130R, KM90, KM90R

Air filter size reference and part number are included for easy cross-checking: overall length 2-11/16 inches, width 3-1/8 inches, height 1/2 inch, hole diameter 7/16 inch. Replacement part number: 4180 120 1800 (4180-120-1800). Each item is designed for a snug, secure fit on many compatible FS-series models.

Real-world use and benefits

In everyday use, a fresh air filter helps maintain clean air paths, while a new fuel filter supports a cleaner fuel path through the system. A reliable primer bulb can assist with quick starts, and a new spark plug helps establish stable ignition. While results vary by model and workload, these parts are intended to support preventive maintenance and ongoing care for busy outdoor projects.

• Cleaner air path with a fresh air filter
• Cleaner fuel path with a new fuel filter
• Reliable starting aided by a fresh primer bulb
• Stable ignition supported by a new spark plug

Installation and care tips

Before you begin, verify compatibility with your specific FS-series model. Handle parts with clean hands and follow your manual for proper installation. Store the kit in a dry place and replace worn components at the first sign of model-specific wear to maintain reliability and ease of maintenance.