FS250 Carburetor - Fits FS250R FS120 FS120R FS200 - Replaces 4134-120-0603

FS250 Carburetor - Fits FS250R FS120 FS120R FS200 - Replaces 4134-120-0603FS250 Replacement Carburetor Key Features Precision engineered to deliver an optimal air fuel mixture for efficient engine performance and reliable operation. Constructed from high quality, corrosion resistant metals to withstand continuous outdoor use and harsh fuel environments. Direct fit design ensures consistent starting, smooth acceleration, and stable idling. Designed to fully restore original equipment power and fuel efficiency. Replaces Cross

FS250 Replacement Carburetor

Key Features

• Precision-engineered to deliver an optimal air-fuel mixture for efficient engine performance and reliable operation.
• Constructed from high-quality, corrosion-resistant metals to withstand continuous outdoor use and harsh fuel environments.
• Direct-fit design ensures consistent starting, smooth acceleration, and stable idling.
• Designed to fully restore original equipment power and fuel efficiency.

Replaces / Cross-Reference Part Numbers

• 4134-120-0651
• 4134-120-0603
• 4134-120-0653
• C1Q-S51C
• C1Q-S36G
• C1Q-S35B
• C1Q-S138
• C1Q-S139
• C1Q-S82
• C1Q-S83

Compatibility & Fitment

• Compatible with select string trimmers, weed eaters, clearing saws, and earth augers.
• Fits FS series models: FS120, FS120R, FS200, FS200R, FS202, FS250, FS250R, FS300, FS350.
• Fits BT and SP series models: BT120, BT120C, BT121, SP200.
• Fits FR and TS series models: FR350, FR450, FR480, TS200.

When to Replace

• The engine is difficult to start, stalls frequently, or dies immediately after turning over.
• The equipment experiences rough idling, bogs down under load, or lacks power during acceleration.
• Fuel is leaking directly from the carburetor body or the surrounding gasket area.
• The engine will only stay running when the choke is partially or fully engaged.

Installation Tips

• Completely drain the fuel tank and clear the fuel lines before removing the old carburetor.
• Inspect and replace the mounting gasket and fuel filter during installation to ensure a proper vacuum seal and clean fuel flow.
• Photograph or take note of the original fuel line routing and throttle linkage positions prior to disassembly.
• Minor adjustments to the high and low mixture screws may be required to fine-tune engine performance after installation.