Operation Manual
purchaser that your engine is free from
defects in materials and workmanship
which cause the engine to fail to conform
with applicable regulations for a period
of two years.
Warranty Period
The warranty period will begin on the
date the utility equipment engine is 
purchased by the initial purchaser and
you have signed and sent back the 
warranty card to STIHL. If any emission
related part on your engine is defective,
the part will be replaced by STIHL 
Incorporated at no cost to the owner.
Any warranted part which is not 
scheduled for replacement as required
maintenance, or which is scheduled only
for regular inspection to the effect of 
"repair or replace as necessary" will be
warranted for the warranty period. Any
warranted part which is scheduled for 
replacement as required maintenance
will be warranted for the period of time
up to the first scheduled replacement
point for that part.
Diagnosis
You, as the owner, shall not be charged
for diagnostic labor which leads to the
determination that a warranted part is 
defective. However, if you claim warranty
for a component and the machine is 
tested as non-defective, STIHL 
Incorporated will charge you for the cost
of the emission test.
Mechanical diagnostic work will be 
performed at an authorized STIHL 
servicing dealer. Emission test may be
performed either at STIHL Incorporated
or at any independent test laboratory. 
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 a warranted part still under
warranty.
The following list specifically defines the
emission-related warranted parts: 
Carburetor
Choke (Cold start enrichment system)
Intake manifold
Air filter 
Spark plug
Magneto or electronic ignition system
(ignition module)
Catalytic converter (if applicable)
Fasteners
Where to make a claim for Warranty
Service 
Bring the product to any authorized
STIHL servicing dealer and present the
signed warranty card. 
Maintenance Requirements
The maintenance instructions in this 
manual are based on the application of
the recommended 2-stroke fuel-oil 
mixture (see also instruction "Fuel"). 
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, 
and 
- replacement of parts and other 
services and adjustments necessary
for required maintenance at and after
the first scheduled replacement point.
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