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Small engine primer bulb. The primer bulb draws additional fuel into the carburetor to help start the engine.

Primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.

Champion spark plug (RCJ6Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

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

Drive belt. Width: 3/8 " Length: 35 3/4 "

Blower tube assembly

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.

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.

Fuel line. The fuel line allows fuel to travel from the fuel tank to the carburetor and from the primer bulb to the fuel system. If the fuel line is leaking, replace it.

Champion Spark Plug (RDJ7Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

Fuel filter & fuel line kit. If the fuel filter and fuel line are clogged, they will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Homelite rewind spring (recoil spring) and container. If the rewind spring is broken, the starter rope won't retract.

On-Off Switch

Filter-air

Screw, 1/4-20 x .5
Ryobi leaf blowers are built for value and reliability, but like all gas-powered equipment, they're prone to a few recurring issues — especially carburetors that get gummed up by ethanol fuel, and recoil starters that wear out from heavy use. Whether your blower won't start, won't run at full power, or has lost its pull cord, Repair Clinic stocks OEM Ryobi parts to get you back in action.
The most common Ryobi leaf blower repairs start with the carburetor (hard start, runs rich/lean, or won't idle) and the recoil starter assembly (pull cord stuck or won't catch). Fuel lines crack over time, primer bulbs fail, and spark plugs foul from old fuel. We carry complete Ryobi leaf blower carburetor kits, fuel lines, spark plugs, primer bulbs, and starter assemblies — all OEM parts that match your exact model.
The #1 reason Ryobi leaf blowers won't start is a carburetor gummed up by ethanol fuel sitting in the tank over winter. Ethanol attracts moisture and leaves varnish deposits that clog the carburetor jets and needle. Before replacing the entire carburetor, try a carburetor rebuild kit — it's one-third the cost and fixes 80% of hard-start complaints. If the blower still won't spark, a fouled spark plug is the second most common culprit; replace it and try again. Always drain old fuel and run fresh gas mixed with 2-stroke oil through a Ryobi blower.
Ryobi model numbers are stamped on the fuel tank body or printed on a label near the engine block. Most Ryobi blower models start with "RY" followed by four to five numbers (e.g., RY08420, RY40404). Once you have your model number, enter it into Repair Clinic's lookup tool to confirm the exact carburetor kit, fuel line, spark plug, and air filter specifications for your blower. Model numbers matter because Ryobi's carburetors and fuel line routing vary across generations, and using the wrong parts can cause fuel leaks or improper idle.
For Ryobi leaf blowers, a carburetor rebuild kit (gasket set, needle, float, and jet parts) is usually the better first move. It costs $15 to $25, takes 20 to 30 minutes, and solves 8 out of 10 carburetor issues. Full carburetor replacement runs $40 to $70 and is only necessary if the main body is cracked or the needle seat is worn beyond repair. Drain the fuel tank, clean the float bowl and jets with carburetor cleaner, install the new gaskets and needle, reassemble, and test. If the blower still won't run after a rebuild, then a full OEM carburetor is the next step.
A stuck pull cord is almost always a failed recoil starter spring or a cracked starter housing. The good news: recoil starter assemblies are replaceable and cost $25 to $45 for OEM Ryobi parts. Remove the old starter (usually 4 to 6 screws), install the new assembly, and your pull cord will work like new. If the starter spins freely but won't catch, the internal pawls may be worn — again, a full starter replacement is the OEM fix. Never try to force a stuck cord; you'll snap it and damage the internal gears.


Find a full range of Ryobi leaf blower parts online to ensure your equipment runs smoothly year-round. With same-day shipping, you can quickly receive the genuine, compatible parts you need for any repair. Whether you're dealing with a carburetor issue or need a new fan blade, our platform makes it easy to search using model or part numbers. Plus, with a No-Hassle 365-Day Returns policy and a price match promise, you get competitive pricing on top-quality parts. Common leaf blower issues, such as rough running or starting problems, can often be resolved by replacing spark plugs, filters, or carburetors. Find more leaf blower repair tips to extend the life of your Ryobi equipment. For additional resources, find the large inventory of Ryobi Leaf Blower Parts for versatile repair options.
Ryobi prints the model number on the fuel tank body or on a label near the engine block of most leaf blowers. Look for a code that usually begins with "RY" and includes four or five numbers, though some models use a different format. Once you find it, enter the number in the model lookup to narrow the complete Ryobi leaf blower parts catalog to items made for your equipment. This filters every associated part category, not just the part you are repairing, so you can check fit across the whole unit. Matching by model is faster and more reliable than comparing parts by appearance, helping you avoid ordering something that will not work.

Repair Clinic's online repair library is where Ryobi Leaf Blower owners and technicians go to diagnose the problem and complete the fix. Video walkthroughs, symptom articles, part testing tutorials, and exploded-view diagrams cover the most common repairs from start to finish. Model number lookup confirms the exact OEM part before you order.

Find essential techniques for safe and efficient yard cleanup using a leaf blower from choosing the right model and adjusting the nozzle to mastering sweeping motions for leaf and debris removal.

Identify five common causes of a rough running gas leaf blower such as a clogged carburetor fuel or air filter worn spark plug or blocked spark arrestor and how to address each one.

Uncover five likely causes that make a gas-powered leaf blower start and then stall—such as a clogged spark arrestor, restricted carburetor, dirty filters, or obstructed fuel cap—and how to resolve each one.