CONTENTS
QUICK FIND
Air Filter.................................................
Contact Honda .....................................
Cutting-Line Heads ...............................
Find a Dealer .......................................
Fuel ........................................................
Fuel System Maintenance ....................
Maintenance Schedule..........................
Oil Change ............................................
Oil Level Check .........................................
Spark Plug ...............................................
Warranty Coverage .................................
FOR YOUR SAFETY ..............................
PARTS AND CONTROLS ......................
INITIAL TRIMMER SETUP .....................
Importance of Proper Assembly ..........
Tools Required....................................
List of Loose Parts...............................
Install the Handlebar (U-Type) ............
Add Engine Oil ....................................
Before Using Your Trimmer.................
BEFORE EACH OPERATION ................
Check Your Trimmer ...........................
Check Your Trimming Area.................
Equipment ...........................................
Check Your Shoulder Harness and
Trimmer Adjustment ............................
Check the Engine Oil Level.................
Add Fuel..............................................
OPERATION...........................................
Safe Trimming Practices .....................
Attachments and Modifications .........
Operating the Controls ......................
Starting the Engine............................
Stopping the Engine..........................
Trimmer Operation ............................
SERVICING YOUR TRIMMER .............
Maintenance Safety...........................
Maintenance Schedule......................
Oil Change ........................................
Air Filter .............................................
Spark Plug.........................................
Spark Arrester ...................................
Cooling Fin Inspection.......................
Throttle Cable Inspection ..................
Throttle Cable Adjustment.................
CUTTING ATTACHMENTS ..................
Blades ...............................................
Debris Shields ...................................
Cutting-Line Heads............................
TRANSPORTING .................................
Before Loading ..................................
Loading..............................................
STORAGE ............................................
Fuel ...................................................
Oil ......................................................
Cleaning ............................................
Storage Location ...............................
Removing From Storage ...................
TROUBLESHOOTING..............................
Engine Will Not Start .............................
Loss of Power or Engine Speed Won’t
Increase.................................................
Cutting-Line Head Won’t Stop Turning..
Cutting-Line or Blade Head Won’t Turn
Excessive Vibration ...............................
TECHNICAL INFORMATION ...................
Serial Number Locations .......................
High Altitude Operation .........................
Emission Control System ......................
Air Index ................................................
Specifications ........................................
AVOIDING FUEL-RELATED PROBLEMS
CUSTOMER INFORMATION ...................
Parts, Accessories, and Service Items..
Dealer Locator Information....................
How to Contact Honda ..........................
Honda Publications ...............................
DISTRIBUTOR’S LIMITED WARRANTY..
EMISSION CONTROL SYSTEM
WARRANTY .............................................
PRODUCT REGISTRATION ....................
OWNER’S MANUAL
HHT25S • HHT35S
TRIMMER/
BRUSH CUTTER
Before operating the trimmer for the first time, please read this
Owner’s Manual. Even if you have operated other trimmers,
take time to become familiar with how this trimmer works and
practice in a safe area until you build up your skills.
© 2014-2021 American Honda Motor Co., Inc.—All Rights Reserved
QUESTIONS?
Contact your Honda dealer.
There is a dealer locator at
powerequipment.honda.com
00X31VL3 D256