0458-838-8601-A
53
English 
27 Emission Control Warranty
Warranty Work
STIHL Incorporated shall remedy warranty defects at any 
authorized STIHL servicing dealer or warranty station. Any 
such work shall be free of charge to the owner if it is 
determined that a warranted part is defective.
Any manufacturer-approved or equivalent replacement part 
may be used for any warranty maintenance or repairs on 
emission-related parts and must be provided without charge 
to the owner. STIHL Incorporated is liable for damages to 
other engine components caused by the failure of an 
emissions warranted part still under warranty.
The following list specifically defines the emission-related 
warranted parts:
– Air Filter
– Carburetor (if applicable)
– Clamps
– Control Linkages
– Cylinder
– Fly Wheel
–Fasteners
– Fuel Cap
– Fuel Line
– Fuel Line Fittings
–Fuel Pump
–Fuel Tank
– Intake Manifold
– Magneto or Electronic Ignition System (Ignition Module or 
Electronic Control Unit)
– Muffler
– Spark Plug
– Solenoid Valve (if applicable)
– Catalytic Converter (if applicable)
– Choke (Cold Start Enrichment System) (if applicable)
– Injection Pump (if applicable)
– Injection Valve (if applicable)
– Throttle Housing (if applicable)
Where to Make a Claim for Warranty Service
Bring the product to any authorized STIHL servicing dealer.
Maintenance Requirements
The maintenance instructions in this manual are based on 
the application of the recommended 2-stroke fuel-oil 
mixture. Deviations from this recommendation regarding 
quality and mixing ratio of fuel and oil may require shorter 
maintenance intervals.
Limitations
This Emission Control Systems Warranty shall not cover any 
of the following:
– repair or replacement required because of misuse, 
neglect or lack of required maintenance,
– repairs improperly performed or replacements not 
conforming to STIHL Incorporated specifications that 
adversely affect performance and/or durability, and 
alterations or modifications not recommended or 
approved in writing by STIHL Incorporated,
– replacement of parts and other services and adjustments 
necessary for required maintenance at and after the first 
scheduled replacement point.
27.2 STIHL Incorporated California Exhaust and 
Evaporative Emissions Control Warranty 
Statement
For California only
Your Warranty Rights and Obligations
The California Air Resources Board (CARB) and STIHL 
Incorporated are pleased to explain the emissions control 
system warranty on your 2022 and later small off-road 
equipment engine.