Craftsman WS210 17 in 25.4 cc 2-Cycle Gas String Trimmer MECH-DIES-THROTTLE Error Fix: Engine Stalls at Full Throttle or When Cutting

Error code MECH-DIES-THROTTLE on the Craftsman WS210 17 in 25.4 cc 2-Cycle Gas String Trimmer means: Engine Stalls at Full Throttle or When Cutting. The trimmer engine idles but stalls or bogs down when the throttle trigger is squeezed or when cutting into vegetation. Causes: (1) Clogged fuel filter — the fuel filter cannot supply enough fuel at high RPM. Replace. (2) Carburetor adjustment — the High-speed (H) jet is set too lean, starving the engine of fuel under load. Turn the H screw counterclockwise (richer) in 1/8-turn increments while the engine is at full throttle. (3) Clogged spark arrestor — carbon deposits block the exhaust screen. Remove from the muffler and clean with a wire brush or torch. (4) Air filter dirty — restricts airflow at high RPM. Clean or replace. (5) Fuel lines deteriorating — 2-cycle fuel degrades rubber fuel lines from the inside. Cracked or soft fuel lines allow air to enter the fuel system, leaning the mixture. Replace both the inlet and return fuel lines. (6) Carburetor diaphragms worn — the metering diaphragm and pump diaphragm in the carburetor harden and crack with age, preventing proper fuel delivery. A carburetor rebuild kit ($8-$15) includes new diaphragms and gaskets. (7) Exhaust port carbon — on older trimmers, carbon deposits in the exhaust port restrict flow and reduce power.

The most successful fix is "Rebuild Carburetor and Replace Fuel Lines" (hard difficulty, ~90 minutes). Estimated DIY cost: $15-$25. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Rebuild Carburetor and Replace Fuel Lines") is rated hard difficulty and takes about 90 minutes. Tools needed: Socket wrench set, Flathead screwdriver, Pliers, Carburetor cleaner spray.

DIY cost: $15-$25. Professional repair typically costs $150-$220. Many homeowners save money by trying the top-ranked community fix first.

The Craftsman WS210 17 in 25.4 cc 2-Cycle Gas String Trimmer has 5 other known error codes, including: MECH-LINE-FEED (Trimmer Line Will Not Advance or Feeds Continuously), MECH-OVERHEATING (Engine Overheating — Loss of Power and Potential Seizure), MECH-PULL-CORD (Pull Cord Breaks or Will Not Retract), MECH-VIBRATION (Excessive Vibration — Uncomfortable to Operate), MECH-WONT-START (Trimmer Engine Will Not Start).