: Features the carburetor (typically models like the C1Q-S series), fuel tank, fuel lines, fuel filter (pickup body), and the air filter with its cover.

: This site organizes parts into specific assemblies like the Crankcase/Cylinder Carburetor PartsTree STIHL FS 230 Diagrams

Always position the handle so your wrist is straight. A twisted throttle cable is the #1 cause of "runaway" throttle on the FS 230.

The plastic shield that protects the operator from flying debris.

Connects the trigger to the carburetor linkage. Gear Head and Cutting Attachments

If your FS 230 won't start, check the impulse hose first. It decays from ethanol fuel and causes fuel starvation.

: Consists of the drive tube assembly, gear head (gearbox), deflector (guard), and various cutting tools like the AutoCut head or metal brush knives. Maintenance & Service Items Commonly replaced spare parts and consumables include:

When replacing the fuel line on an FS 230, you must use a Stihl hook tool (5910 891 2300). The line passes through a very tight grommet; generic lines are too thick.

Compatible with AutoCut 25-2, SuperCut, or metal brush knives.

The plastic or metal tabs that engage the flywheel when you pull the rope.

First, he ran his finger down the Fuel System column. – the carburetor. He checked the fuel filter first (small, white, cheap), then the spark arrestor in the muffler. Clogged. He replaced both. The trimmer fired once, then died again. Deeper trouble.

The internal solid steel rod that transfers power to the gear head.

The FS 230 transmits power via a flexible steel cable inside a tube. This requires high-temperature grease (Stihl #0781 120 1109).