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EMISSION CONTROL SYSTEM WARRANTY

Your new Honda Power Equipment engine complies with the U.S. EPA and 
State of California (models certified for sale in California only) emission 
regulations. American Honda Motor Co., Inc. provides the emission warranty 
coverage for engines in the United States and its territories. In the remainder of 
this Emission Control System Warranty, American Honda Motor Co., Inc., will 
be referred to as Honda.

YOUR WARRANTY RIGHTS AND OBLIGATIONS:

CALIFORNIA 

The California Air Resources Board and Honda are pleased to explain the 
emission control system warranty on your 2019 and later Honda Power 
Equipment engine. In California, new spark-ignited small off-road equipment 
engines must be designed, built, and equipped to meet the state's stringent 
anti-smog standards. Specific Honda products that do not meet the California 
emissions regulations can be identified by a “Not for sale in California” decal.

OTHER STATES AND U.S. TERRITORIES

In other areas of the United States, your engine must be designed, built, and 
equipped to meet the U.S. EPA emission standards for spark-ignited engines 
at or below 19 kilowatts.

ALL OF THE UNITED STATES

Honda must warrant the emission control system on your power equipment 
engine for the period of time listed below, provided there has been no abuse, 
neglect, or improper maintenance of your power equipment engine. Where a 
warrantable condition exists, Honda will repair your power equipment engine at 
no cost to you including diagnosis, parts, and labor.
Your emission control system may include such parts as the carburetor or fuel 
injection system, the ignition system, and catalytic converter. Also included 
may be hoses, connectors, and other emission-related assemblies (see the 
adjacent column for additional covered parts).

OWNER'S WARRANTY RESPONSIBILITY: 

As the power equipment engine owner, you are responsible for completing all 
required maintenance listed in your owner's manual. Honda recommends that 
you retain all receipts covering maintenance on your power equipment engine, 
but Honda cannot deny warranty coverage solely for the lack of receipts or for 
your failure to ensure that all scheduled maintenance has been completed.
As the power equipment engine owner, you should however be aware Honda 
may deny you warranty coverage if your power equipment engine or a part has 
failed due to abuse, neglect, improper maintenance, or unapproved 
modifications.
You are responsible for presenting your power equipment engine to a Honda 
Power Equipment dealer as soon as a problem exists. The emission related 
warranty repairs should be completed in a reasonable amount of time, not to 
exceed 30 days.
If you have any questions regarding your emission warranty rights and 
responsibilities, you should contact the Honda office in your region

:

WARRANTY COVERAGE: 

Honda power equipment engines sold in the United States are covered by this 
warranty for a period of two years from the date of delivery to the original retail 
purchaser or the length of the Honda Distributor’s Limited Warranty, whichever 
is longer. This warranty is transferable to each subsequent purchaser for the 
duration of the warranty period.
If any emission-related part on your engine is defective, the part will be repaired 
or replaced by Honda without charge for diagnosis, parts, or labor. All defective 
parts replaced under this warranty become the property of Honda. Only Honda 
approved replacement parts may be used in the performance of any warranty 
repairs and must be provided without charge to the owner. A list of warranted 
parts is on the adjacent column of this warranty statement. Normal maintenance 
items, such as spark plugs and filters, that are on the warranted parts list are 
warranted up to their required replacement interval only.
Honda will also replace other engine components damaged by a failure of any 
warranted part during the warranty period. 

Honda cannot deny coverage under the emission warranty solely for use of 
non-Honda replacement parts or service performed at a location other than an 
authorized Honda dealership; however, use of a part that is not functionally 
identical to the original equipment part in any respect that may in any way 
affect emissions (including durability) could result in denial of coverage. If such 
a non-Honda replacement part is used in the repair or maintenance of your 
engine, and an authorized Honda dealer determines it is defective or causes a 
failure of a warranted part, your claim for repair of your engine may be denied. 
If the part in question is not related to the reason your engine requires repair, 
your claim will not be denied.

TO OBTAIN WARRANTY SERVICE: 

You must, at your own expense, take your Honda Power Equipment engine or 
the product on which it is installed, along with your sales registration card or 
other proof of original purchase date, to any Honda Power Equipment dealer 
who is authorized by Honda to sell and service that Honda product during their 
normal business hours. Claims for repair or adjustment found to be caused 
solely by defects in material or workmanship will not be denied because the 
engine was not properly maintained and used.
If you are unable to obtain emission warranty service or are dissatisfied with 
the warranty service you received, contact the owner of the dealership 
involved. Normally this should resolve your problem. However, if you require 
further assistance, contact the Honda office in your region. Refer to adjacent 
column for contact information.

EXCLUSIONS: 

Failures other than those resulting from defects in material or workmanship are 
not covered by this warranty. This warranty does not extend to emission control 
systems or parts that are affected or damaged by owner abuse, neglect, 
improper maintenance, misuse, misfueling, improper storage, collision, the 
incorporation of, or use of, unsuitable attachments, or the unauthorized 
alteration of any part.
This warranty does not cover replacement of expendable maintenance items 
made in connection with required maintenance service after the item’s first 
scheduled replacement as listed in the maintenance section of the product 
owner’s manual, such as: spark plugs and filters.

DISCLAIMER OF CONSEQUENTIAL DAMAGE AND LIMITATION 
OF IMPLIED WARRANTIES: 

American Honda Motor Co., Inc. disclaims any responsibility for incidental or 
consequential damages such as loss of time or the use of the power 
equipment, or any commercial loss due to the failure of the equipment; and 
any implied warranties are limited to the duration of this written warranty. This 
warranty is applicable only where the California and U.S. EPA emission control 
system warranty regulation is in effect.

American Honda Motor Co., Inc.

Power Equipment Customer Relations 

4900 Marconi Drive

Alpharetta, Georgia 30005-8847

Telephone: (888) 888-3139

Email: [email protected]

SYSTEMS COVERED

BY THIS WARRANTY:

PARTS

DESCRIPTION:

Fuel Metering

Carburetor assembly, (includes starting enrichment 

system), Oxygen sensor, Throttle body, Engine 

temperature sensor, Engine control module, Fuel 

regulator, Intake manifold

Evaporative

Fuel tank, Fuel cap, Fuel hoses, Vapor hoses, 

Carbon canister, Canister mounting brackets, 

Fuel strainer, Fuel valve, Fuel pump, Fuel hose joint, 

Canister purge hose joint

Exhaust

Catalyst, Exhaust pipe, Muffler (with catalyst)

Air Induction

Air cleaner case, Air cleaner element*

Ignition

Flywheel magneto, Flywheel comp., Ignition 

pulse generator, Crankshaft position sensor, Power 

coil, Ignition coil assembly, Ignition control module, 

Spark plug cap, Spark plug*

Crankcase Emission 
Control

Crankcase breather tube, Breather valve assembly, 

Oil filler cap

Miscellaneous Parts

Tubing, fittings, seals, gaskets, and clamps 

associated with these listed systems.

Note: This list applies to parts supplied by Honda and does not cover parts 

supplied by the equipment manufacturer. Please see the original 
equipment manufacturer’s emissions warranty for non-Honda parts.

* Covered up to the first required replacement only. See the 

MAINTENANCE 

SCHEDULE

 on 

page 15

.

PWL50975-T

Summary of Contents for HHT25S

Page 1: ...ebris Shields 21 Cutting Line Heads 22 TRANSPORTING 24 Before Loading 24 Loading 24 STORAGE 24 Fuel 24 Oil 24 Cleaning 24 Storage Location 25 Removing From Storage 25 TROUBLESHOOTING 25 Engine Will No...

Page 2: ...esigned to cut grass weeds brush and or wood if equipped with an appropriate cutting attachment Other uses can result in injury to the operator or damage to the trimmer and other property These Honda...

Page 3: ...S HANGER DEBRIS SHIELD WITH CUTOFF KNIFE DRIVE CABLE FRAME PIPE LOOP HANDLE THROTTLE SET BUTTON OPERATOR PRESENCE LEVER THROTTLE TRIGGER IGNITION SWITCH CUTTING LINE HEAD GEAR CASE GEAR CASE IGNITION...

Page 4: ...trigger facing to the right 3 Adjust the handlebar position as shown WARNING Improper assembly can cause an unsafe condition that can lead to serious injury or death Follow the procedures and precauti...

Page 5: ...mmer head and tighten it by hand in the direction shown 7 Remove the 4 mm hex wrench from the gear case hole All output shafts use left hand threads Brush Wood 50 tooth Shield and Head Installation Pr...

Page 6: ...th the blade cover fully seated on the blade latch the tab over the post Add Engine Oil The trimmer is shipped WITHOUT OIL in the engine Place the trimmer on a level surface and then remove the oil fi...

Page 7: ...ting the trimmer carefully inspect the area and remove all objects that could be thrown by or entangled in the cutting attachment such as rocks broken glass nails wire or string Clear the area of chil...

Page 8: ...he trimmer on a level surface with the engine stopped 1 Rest the trimmer on a level surface as shown 2 Remove the oil filler cap dipstick and wipe it clean 3 Insert and remove the dipstick without scr...

Page 9: ...Do not operate the trimmer until the problem is corrected Prolonged exposure to vibration may cause Hand Arm Vibration Syndrome HAVS Symptoms include loss of skin color in the hands and numbness or a...

Page 10: ...ebris that strikes the hard surface will ricochet away from you Gravel loose stones etc can be picked up by the nylon cutting lines or blade and thrown many feet with enough force to cause serious per...

Page 11: ...rub or sapling away to free the blade Do not use the blade as a lever Operation on Slopes Start on the low side of a slope and work upward This will reduce your risk of slipping and falling and it wil...

Page 12: ...rottle set button is used to hold the throttle trigger at the fast idle position for starting Do not allow the cutting line or blade to contact any obstruction when starting the engine with the thrott...

Page 13: ...resistance then pull briskly Return the starter grip gently 7 If the choke lever was moved to the CLOSED position to start the engine gradually move it to the OPEN position as the engine warms up All...

Page 14: ...1 4 inch 6 mm exposed in the inner housing radius Do this for both sides The line will only move in one direction Pull the trimmer line through the inner housing to unload Semi Matic bump feed Cuttin...

Page 15: ...be careful when working around gasoline Use only a nonflammable solvent not gasoline to clean parts Keep cigarettes sparks and flames away from all fuel related parts Maintenance Schedule 1 Log the h...

Page 16: ...lean the filter more often when used in dusty areas Replace the filter every 2 years or 150 hours of use A properly maintained air filter will help prevent dirt from entering your engine Dirt entering...

Page 17: ...lace the spark plug every 2 years or after 300 hours of use Required Spark Plug NGK CMR5H NOTICE An incorrect spark plug can cause engine damage 1 Use a 4 mm Allen wrench to loosen the 5 x 12 mm hex b...

Page 18: ...ng fins 3 Install the fan cover and tighten the 5 mm hex bolt securely Throttle Cable Inspection Verify the throttle trigger operates smoothly releases properly and the throttle cable is undamaged If...

Page 19: ...r If the fuel filter is dirty wash it with nonflammable solvent Be careful to avoid damaging the filter 5 Replace the filter if it is damaged or excessively dirty 6 Rinse sediment from the fuel tank w...

Page 20: ...ler tighten the blade lock nut for you before using the trimmer If the blade lock nut is tightened too much the output shaft can break If the blade lock nut is not tightened enough the blade could com...

Page 21: ...ced Changing the Debris Shield Refer to the applicable illustration for removing and installing the debris shields Tighten the spacer bolts washers to the specified torque TORQUE 30 in lb 3 4 N m DEBR...

Page 22: ...while the semi matic head has a spring loaded round button on the bottom of the head which automatically extends the line during use when bumped on the ground Do not use any kind of metal wire or wir...

Page 23: ...o let the line slip under the spool When the spool reaches the bottom of the housing the lines should snap out of the spool notches If you are not sure if the lines have snapped out of the notches gen...

Page 24: ...out of the carburetor back to the fuel tank and then drain this fuel from the tank Oil Change the engine oil see page 16 Add oil in the engine cylinder to prevent rust 1 Remove the spark plug page 17...

Page 25: ...__________________________________ Date of purchase _____________________________________ Possible Cause Correction Ignition switch is in the STOP position Turn the ignition switch ON Choke is not in...

Page 26: ...hat May Affect Emissions If you are aware of any of the following symptoms have your engine inspected and repaired by your servicing dealer Hard starting or stalling after starting Rough idle Misfirin...

Page 27: ...capacity 2 7 fl oz 80 cc 3 4 fl oz 100 cc Carburetor type Diaphragm type overflow return with fuel pump Air cleaner Single element semi dry Idle speed 3 100 200 rpm Noise 94 8 dBA 8000 rpm Model GX25...

Page 28: ...eteriorates with age so try to avoid storing it for long periods especially in summer heat Fuel stabilizer will extend the shelf life of gasoline but it will not reconstitute stale fuel When you finis...

Page 29: ...e of approval for printing American Honda Motor Co Inc reserves the right however to discontinue or change specifications or design at any time without notice and without incurring any obligation what...

Page 30: ...ed warranty Some states do not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above exclusions an...

Page 31: ...coverage under the emission warranty solely for use of non Honda replacement parts or service performed at a location other than an authorized Honda dealership however use of a part that is not funct...

Page 32: ...32 NOTES...

Page 33: ...33 NOTES...

Page 34: ...34 NOTES...

Page 35: ...eleased to any other company or organization Failure to register your trimmer does not diminish your warranty rights Please complete and mail the postage paid card or register online at powerequipment...

Page 36: ...nd click Submit It s that simple Power Equipment Division American Honda Motor Co Inc 4900 Marconi Dr Alpharetta GA 30005 9956 NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES Product Registration...

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