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MTD flange lock nut, 5/16-18.

Two cycle engine carburetor. If the engine runs rough, the carburetor may be restricted. The carburetor can often be cleaned or rebuilt, but sometimes it may need to be replaced.

Cap assembly- fuel tank

Self-tapping screw. 5/16-18 inches by .75 inches.

Spacer, 1.25 x .75 x 1.00

MTD flange lock-nut, 1/4-20.

Two cycle engine fuel filter and line assembly. If the fuel filter is clogged, it will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Carburetor insulation gasket

Nut-Locking. The manufacturer has changed vendors and the part may vary in character. Some do not have a nylon insert, however the nut is a locking type.

MTD Spark Plug (794-0055A)

Spring-extension

Small engine primer bulb with hose, large diameter. If the engine does not start the primer bulb may be defective and unable to draw additional fuel in to the carburetor to assist with starting the engine.

Air cleaner assembly

Fuel tank

On-Off Switch
If you pride yourself on having a green thumb, tilling and cultivating is certain to be one of your favorite warm weather activities… but not if your tiller lets you down. When that happens, turn to Repair Clinic and our full inventory of Troy-bilt tiller parts. Keeping your tiller engine tuned-up with a fresh spark plug and air filter is strongly recommended before the tilling season even begins. If the engine runs rough, it’s possible the fuel filter or carburetor is clogged with the residue of old fuel. All of these engine parts are available from Repair Clinic, along with new roto-tiller tines, control cables, drive belts, handles, and more. Enter the full model number of your tiller in Repair Clinic’s search bar for a complete list of parts compatible with your model, including such popular models as the Troy-bilt Horse Garden Tiller and the Big Red Garden Tiller, both powered by a 306cc Briggs and Stratton engine. If you’re having trouble finding the tiller replacement part you need, please contact our Customer Service Team at 1-800-269-2609; they’ll be happy to assist you with your selection and purchase.
From a comprehensive part inventory to an unmatched library of repair help materials, Repair Clinic supports every do-it-yourselfer. Check out some of our "how-to” videos, diagrams, schematics, and articles to discover how easy it can be to troubleshoot problems and repair appliances, lawn and garden equipment, and heating and cooling products with help from Repair Clinic.