Honda GX25 Owner's Manual

INTRODUCTION
Thank you for purchasing a Honda engine. W e want to help you to
get the best results fro m your ne w engine and to operate it safely.
This manual contains information on how to do that; please read it
carefully before operating the engine. If a proble m should arise, or
if you have any questions about your engine, consult an
authorized Honda servicing dealer.
All information in this publication is based on the latest product
information available at the time of printing. Honda M otor Co., Ltd.
reserves the right to make changes at any time without notice and
without incurring any obligation. N o part of this publication may
be reproduced without written permission.
This manual should be considered a permanent part of the engine
and should re main with the engine if resold.
Revie w the instructions provided with the equip ment powered by
this engine for any additional information regarding engine
startup, shutdown, operation, adjustments or any special
maintenance instructions.
U nited States, Puerto Rico, and U.S. Virgin Islands:
W e suggest you read the warranty policy to fully understand its
coverage and your responsibilities of ownership. The warranty
policy is a separate docu ment that should have been given to you
by your dealer.

SAFETY MESSAGES

Your safety and the safety of others is very im portant. W e have
provided im portant safety messages in this manual and on the
engine. Please read these messages carefully.
A safety message alerts you to potential hazards that could hurt
you or others. Each safety message is preceded by a safety alert
sy m bol and one of three words, D A N G ER, W ARNIN G, or
C A U TIO N.
These signal words mean:
Each message tells you what the hazard is, what can happen, and
what you can do to avoid or reduce injury.
DAMAGE PREVENTION MESSAGES
You will also see other im portant messages that are preceded by
the word N O TICE.
This word means:
Your engine or other property can be da maged if you
don't follow instructions.
The purpose of these messages is to help prevent da mage to your
engine, other property, or the environ ment.
2005 Honda M otor Co., Ltd.
37Z6J601
00X37-Z6J-6010
You WILL be KILLED or SERIO U SLY
HURT if you don't follow instructions.
You C A N be KILLED or SERIO U SLY
HURT if you don't follow instructions.
You C A N be HURT if you don't follow
instructions.
All Rights Reserved
−
G X25NT·G X35NT
OWNER'S MANUAL
MANUEL DE L'UTILISATEUR
MANUAL DEL PROPIETARIO
GX25·GX35
The engine exhaust fro m this product
contains che micals known to the State of
California to cause cancer, birth defects
or other reproductive harm.
CONTENTS
IN TRO D U CTIO N .......................
S AFETY M ESS A G ES ................
S AFETY IN F ORM ATIO N
S AFETY IN DIC ATIO N
LO C ATIO N ................................
C O MPO N EN T & C O N TROL
LO C ATIO N ................................
FEATURES ................................
BEF ORE OPERATIO N
CHECKS ....................................
OPERATIO N ..............................
S AFE OPERATIN G
PREC A U TIO N S .....................
STARTIN G THE EN GIN E
SETTIN G EN GIN E SPEED
STOPPIN G THE EN GIN E
SERVICIN G Y O UR EN GIN E
THE IMPORTA N CE O F
M AIN TEN A N CE ....................
M AIN TEN A N CE S AFETY
S AFETY PREC A U TIO N S
M AIN TEN A N CE
SCHED ULE ............................
REF U ELIN G ...........................
EN GIN E OIL ...........................
Reco m mended Oil ............
Oil Level Check ..................
Oil Change .........................
AIR CLEA N ER ......................
Inspection ........................
Cleaning ..........................
ENGLISH
.1 SPARK PLU G ......................
.1 C O OLIN G FIN S ...................
.......... .2 F U EL FILTER A N D F U EL
TA N K ...................................
.2 SPARK ARRESTER
HELPF UL TIPS &
.2 S U G G ESTIO N S ......................
.3 STORIN G Y O UR EN GIN E .14
TRA N SPORTIN G
.4 TAKIN G C ARE O F
.4 U N EXPECTED PRO BLE M S
TECHNIC AL & C O N S U M ER
.4 IN F ORM ATIO N .......................
...... .4 Serial N u m ber Location
..... .5 Re m ote Control Linkage
...... .6 Carburetor M odifications for
..... .6 High Altitude O peration
O xygenated Fuels
.6 Emission Control Syste m
...... .6 Information .........................
....... .7 Air Index ..............................
Specifications .....................
.7 Tuneup Specifications
.8 Q uick Reference
.8 Information .........................
.8 Wiring Diagra ms
.9 C O N S U M ER IN F ORM ATIO N .20
.9 Distributor/Dealer Locator
.10 Information .........................
.10 Custo mer Service
.10 Information .........................
.11
.11
.12
............. .12
.14
...
................ .15
.... .16
.16
..... .16
..... .16
..... .17
............... .17
.17
.18
.18
........ .19
.19
................ .19
.
.20
.20
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