Yard Machines String Trimmer Parts

Yard Machines String Trimmer Parts

Yard Machines string trimmers are built on MTD platforms and engineered for reliable lawn edging and trimming. When your trimmer won't start, loses cutting power, or won't feed line, the fix is usually straightforward — and Repair Clinic carries the OEM parts you need. Whether it's a fuel system issue, a worn trimmer head, or a seized recoil starter, we'll help you get back to yard work.

String trimmer repairs often come down to seasonal maintenance or one high-wear part. The most common fixes are affordable and doable in minutes: a new primer bulb, a trimmer head spool, fresh spark plug, or a carburetor kit. Have your model number ready, and we'll match you with the exact replacement parts.

• Carburetor & Fuel System: Hard start, won't start, or runs rough after sitting — ethanol damage to the carburetor is the top culprit. Primer bulb cracks, fuel lines harden, and jets clog. We carry carburetor rebuild kits and complete replacement carburetors.
• Trimmer Head & Line: Line runs out mid-job or won't feed — the trimmer head spool is the fix. We stock.065".080", and.095" Yard Machines trimmer line, plus complete bump head assemblies for fast reloading.
• Recoil Starter: Pull cord stuck or won't recoil — the recoil spring breaks or the pulley binds. Recoil starter assemblies are ready to swap in.
• Spark Plug & Air Filter: Fouled plug or clogged air filter starves the engine of fuel or air. Seasonal maintenance parts that prevent most hard-start problems.
• Throttle & Fuel Lines: Throttle cable snaps from age; fuel line cracks from ethanol breakdown. Both are easy replacements that restore full control and fuel delivery.

Shop all Yard Machines trimmer parts by model number — enter your model to see the exact parts your trimmer needs.

Yard Machines String Trimmer Parts: Common Questions

Why won't my Yard Machines trimmer start?

The most common reason is carburetor buildup from stale fuel left over the off-season. Ethanol in gasoline breaks down and leaves sticky varnish in the carburetor jets, blocking fuel flow. If the engine cranks but won't catch, try a carburetor rebuild kit first — it's a $15 to $25 fix. If it won't crank at all, the recoil starter may have failed. A fouled or gapped spark plug is also a frequent culprit; replace it as part of spring startup maintenance.

How do I reload the trimmer head on my Yard Machines trimmer?

Yard Machines bump heads advance line automatically when you tap the head on the ground. To reload, unscrew the spool cap (usually clockwise), remove the old spool, and wind new trimmer line (.065".080", or.095" depending on your model) onto the replacement spool in the direction marked on the spool. Insert the new spool, replace the cap, and you're ready to trim. If the spool is cracked or the head won't feed line even with fresh line, replace the entire trimmer head assembly — OEM Yard Machines heads ensure proper line feeding and durability.

Where do I find my Yard Machines trimmer model number?

The model number is stamped on the shaft housing or the top of the engine (carburetor area). It usually looks like "21A-64C234" or similar. Write it down and use our model number lookup tool — it will pull up every part specific to your trimmer, from carburetors to fuel lines to the exact trimmer head spool you need. If you can't find the number, a photo of the engine or trimmer head often helps us identify it.

Why does my trimmer lose power during use?

Partial blockage in the fuel line or a clogged air filter are the most common power-loss causes. The engine starves for air or fuel and bogs down. Check the air filter first — it's the easiest fix. If that's clean, inspect the fuel line for cracks or kinks; a cracked line lets air in, disrupting fuel flow. A worn spark plug gap can also cause weak ignition. OEM Yard Machines fuel lines and air filters are inexpensive and restore full cutting power.

Order Yard Machines String Trimmer Parts Online

Keep your Yard Machines String Trimmer in top condition with genuine replacement parts available online. Whether you need string trimmer parts, weed eater parts, or weed wacker parts, our full inventory ensures compatibility and quality. Enjoy the convenience of same-day shipping, ensuring you receive your parts quickly. Easily find the exact replacement part using our model number or part number lookup tool. We offer a No-Hassle 365-Day Returns policy and a Price Match Guarantee. Common issues like a trimmer that won't start or runs rough can often be fixed by replacing spark plugs or air filters. Visit our String Trimmer Repair Help page for DIY guides. Also, find Yard Machines String Trimmer Parts for additional options. Trust Repair Clinic to help you maintain your equipment efficiently.

Yard Machines String Trimmer Model Number: Where to Look

On Yard Machines string trimmers, look for the model number stamped or printed on the shaft housing, near the engine, or around the carburetor area. Check the top of the engine and the main housing for a label or plate, then copy every letter, number, and hyphen exactly as shown. Enter that number in the model number search to pull up the parts matched to your unit. The model number identifies the entire trimmer, so it narrows the full catalog across fuel, ignition, cutting head, starter, and other parts categories to parts built for your specific Yard Machines model. Accurate entry saves time when several models look alike, helping you order with confidence knowing the fit is right.