Keep your Stihl BG 55 leaf blower running at full power with genuine OEM replacement parts from Repair Clinic. The Stihl BG 55 is a handheld consumer-grade gas leaf blower with a 27.2 cc two-stroke engine, the same displacement as the Stihl FS 55 trimmer platform. The carburetor, air filter, fuel filter, spark plug, and primer bulb are the most frequently serviced components on the BG 55 across its service life. Repair Clinic stocks genuine Stihl OEM parts for the BG 55 including the Stihl leaf blower carburetor parts, Stihl leaf blower air filter parts, Stihl leaf blower spark plug parts, and Stihl leaf blower ignition coil parts. Browse the Stihl leaf blower parts catalog filtered by BG 55 for the complete parts inventory.
Stihl BG 55: 27.2 cc Handheld Gas Leaf Blower Service
The Stihl BG 55 uses a 27.2 cc two-stroke engine with a diaphragm carburetor and an in-tank fuel filter on the pickup tube. The fuel filter is the first component to replace before disassembling the carburetor when a lean-running or hard-starting symptom appears, because a clogged filter produces carburetor-identical symptoms at zero disassembly cost. The primer bulb pumps fuel from the tank into the carburetor for cold starting and should be replaced when it becomes stiff, cracked, or fails to spring back after being pressed. The leaf blower repair help section covers BG 55 carburetor service, fuel line replacement, and ignition coil air gap adjustment.
Most Replaced Parts on the Stihl BG 55
Carburetor for the Stihl BG 55
The BG 55 carburetor is a diaphragm type specific to handheld two-stroke equipment. Ethanol varnish deposits in the diaphragm chamber and needle valve seat from fuel sitting in the tank during storage cause most starting and running problems on the BG 55. Cleaning restores function in most cases. When the diaphragm has hardened or cracked, carburetor replacement is the most reliable solution.
Air Filter for the BG 55
Replace the air filter at the start of each outdoor season or every 25 hours of operation. A clogged air filter causes the engine to run rich and lose blowing power at full throttle.
Spark Plug for the Stihl BG 55
Annual spark plug replacement maintains reliable starting and clean combustion in the two-stroke engine. Always use the fuel-to-oil mixture ratio specified in the Stihl BG 55 owner’s manual.
Ignition Coil for the BG 55
Test for spark with an inline spark tester before condemning the ignition coil. A coil with a cracked armature or widened air gap produces a weak or absent spark that can be misdiagnosed as a carburetor problem.
Why Choose Repair Clinic for Stihl BG 55 Parts
- Genuine Stihl OEM Components: Carburetors, air filters, spark plugs, and ignition coils confirmed for the Stihl BG 55 handheld leaf blower Stihl leaf blower parts.
- Fuel Filter First Diagnostic Guidance: In-tank fuel filter replacement before carburetor disassembly is the most cost-effective first step for lean-running and hard-starting symptoms on the BG 55.
- Leaf Blower Repair Resources: Carburetor cleaning, primer bulb replacement, and ignition coil air gap adjustment through leaf blower repair help.
- 365-Day Returns: Return any uninstalled Stihl part within a full year of purchase with no restocking fees.
Stihl BG 55 Leaf Blower Parts FAQ
What is the Stihl BG 55 and what engine does it use?
The Stihl BG 55 is a handheld consumer-grade gas leaf blower with a 27.2 cc two-stroke engine. It is the same engine displacement as the Stihl FS 55 trimmer platform, making some fuel system and ignition components interchangeable between the two product lines.
Why does my Stihl BG 55 start but have weak blowing power?
Weak blowing power is most commonly caused by a partially clogged air filter, a partially clogged carburetor idle circuit, or a cracked fuel line creating a small air leak. Inspect and replace the fuel filter inside the tank first before disassembling the carburetor.
How do I replace the primer bulb on the Stihl BG 55?
Remove the air filter housing to access the carburetor. Peel back the fuel line from the primer bulb spigot, remove the old bulb from the housing recess, and press the new bulb in until it seats completely. Reconnect the fuel lines and reinstall the air filter housing.
How often should I replace the fuel filter inside the Stihl BG 55 tank?
Replace the fuel filter annually. The in-tank fuel filter on the pickup tube should be replaced before diagnosing the carburetor when lean-running or hard-starting symptoms appear.
