FS 40, FS 40 C, FS 50, FS 50 C
English
40
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:
N repair or replacement required 
because of misuse, neglect or lack 
of required maintenance,
N 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,
and
N replacement of parts and other 
services and adjustments 
necessary for required maintenance 
at and after the first scheduled 
replacement point.
For California only
Your Warranty Rights and Obligations
The California Air Resources Board 
(CARB) and STIHL Incorporated are 
pleased to explain the emission control 
system warranty on your 2014 and later 
small off-road equipment engine.
In California, new equipment that uses 
small off-road engines must be 
designed, built, and equipped to meet 
the State's stringent anti-smog 
standards. STIHL Incorporated must 
warrant the emissions control system on 
your small off-road engine for the period 
listed below provided there has been no 
abuse, neglect or improper maintenance 
of your small off-road engine.
Your emissions control system may 
include parts such as the carburetor or 
fuel-injection system, the ignition 
system, and catalytic converter. Also 
included may be hoses, belts, 
connectors or other emission-related 
assemblies.
Where a warrantable condition exists, 
STIHL Incorporated will repair your 
small off-road equipment engine at no 
cost to you including diagnosis, parts 
and labor.
Manufacturer’s Warranty 
Responsibilities
This emissions control system is 
warranted for two years in California. If 
any emissions-related part on your 
equipment is defective, the part will be 
repaired or replaced by STIHL 
Incorporated free of charge.
Owner’s Warranty Responsibilities
As the small off-road equipment engine 
owner, you are responsible for 
performance of the required 
maintenance listed in your instruction 
manual. STIHL Incorporated 
recommends that you retain all receipts 
covering maintenance on your small off-
road equipment engine, but STIHL 
Incorporated cannot deny warranty 
solely for the lack of receipts or your 
failure to ensure the performance of all 
scheduled maintenance.
As the small off-road equipment engine 
owner, you should however be aware 
that STIHL Incorporated may deny you 
warranty coverage if your small off-road 
equipment engine or a part has failed 
due to abuse, neglect, or improper 
maintenance or unapproved 
modifications.
You are responsible for presenting your 
small off-road equipment engine to a 
STIHL servicing dealer as soon as the 
problem exists. The warranty repairs 
should be completed in a reasonable 
amount of time, not to exceed 30 days. If 
you have any questions regarding your 
warranty rights and responsibilities, 
please contact a STIHL customer 
service representative at 1-800-467-
8445 or you can write to
STIHL Incorporated 
California Exhaust and 
Evaporative Emissions 
Control Warranty Statement