Honda GX270UT2 Service Manual

Honda GX270UT2 Service Manual

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62Z5F00Z.book 1 ページ 2010年6月23日 水曜日 午後2時57分

How to use this manual

A Few Words About Safety
How to use this manual
SERVICE INFORMATION
The service and repair information contained in this manual is intended for use by qualified, professional technicians. Attempting
service or repairs without the proper training, tools, and equipment could cause injury to you and/or others. It could also damage
this Honda product or create an unsafe condition.
This manual describes the proper methods and procedures for performing service, maintenance, and repairs. Some procedures
require the use special tools. Any person who intends to use a replacement part, service procedure, or a tool that is not
recommended by Honda must determine the risks to their personal safety and the safe operation of this product.
If you need to replace a part, use Honda Genuine parts with the correct part number or an equivalent part. We strongly recommend
that you do not use replacement parts of inferior quality.
For Your Customer's Safety
Proper service and maintenance are essential to the customer's safety and the reliability of this product. Any error or oversight
while servicing this product can result in faulty operation, damage to the product, or injury to others.
Improper service or repairs can create an unsafe
condition that can cause your customer or others to
be seriously hurt or killed.
Follow the procedures and precautions in this man-
ual and other service materials carefully.

For Your Safety

Because this manual is intended for the professional service technician, we do not provide warnings about many basic shop safety
practices (e.g., Hot parts-wear gloves). If you have not received shop safety training or do not feel confident about your knowledge
of safe servicing practices, we recommend that you do not attempt to perform the procedures described in this manual.
Some of the most important general service safety precautions are given below. However, we cannot warn you of every
conceivable hazard that can arise in performing service and repair procedures. Only you can decide whether or not you should
perform a given task.
Failure to properly follow instructions and precau-
tions can cause you to be seriously hurt or killed.
Follow the procedures and precautions in this man-
ual carefully.
Important Safety Precautions
Make sure you have a clear understanding of all basic shop safety practices and that you are wearing appropriate clothing and
using safety equipment. When performing any service task, be especially careful of the following:
• Read all of the instructions before you begin, and make sure you have the tools, the replacement or repair parts, and the skills
required to perform the tasks safely and completely.
• Protect your eyes by using proper safety glasses, goggles, or face shields anytime you hammer, drill, grind, or work around
pressurized air, pressurized liquids, springs, or other stored-energy components. If there is any doubt, put on eye protection.
• Use other protective wear when necessary, for example gloves or safety shoes. Handling hot or sharp parts can cause severe
burns or cuts. Before you grab something that looks like it can hurt you, stop and put on gloves.
• Protect yourself and others whenever you have equipment hoisted in the air. Anytime you lift this product with a hoist, make sure
that the hoist hook is securely attached to the product.
Make sure the engine is off before you begin any servicing procedures, unless the instruction tells you to do otherwise. This will
help eliminate several potential hazards:
• Carbon monoxide poisoning from engine exhaust. Be sure there is adequate ventilation whenever you run the engine.
• Burns from hot parts. Let the engine and exhaust system cool before working in those areas.
• Injury from moving parts. If the instruction tells you to run the engine, be sure your hands, fingers and clothing are out of the way.
Gasoline vapors and hydrogen gasses from batteries are explosive. To reduce the possibility of a fire or explosion, be careful when
working around gasoline or batteries.
• Use only a nonflammable solvent, not gasoline, to clean parts.
• Never store gasoline in an open container.
• Keep all cigarettes, sparks, and flames away from the battery and all fuel-related parts.
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Do you have a question about the GX270UT2 and is the answer not in the manual?

Questions and answers

John Johnson
April 16, 2025

How to change the water pump oil if there is no sight glass and what level to fill to.

1 comments:
Mr. Anderson
May 9, 2025

The documents do not mention a water pump or changing its oil. However, for the engine oil on a Honda GX270UT2, follow these steps:

1. Warm up the engine to help oil drain more easily.
2. Place the engine on a level surface.
3. Remove the oil filler cap, drain plug bolt, and drain plug washer.
4. Drain the oil into a suitable container.
5. Reinstall the drain plug and washer securely.
6. Refill with SAE 10W-30 oil (API SJ or later) until the oil reaches the upper level of the oil filler neck.
7. Tighten the oil filler cap securely.

No mention is made of a sight glass; the oil level is checked at the oil filler neck.

This answer is automatically generated

Summary of Contents for Honda GX270UT2

  • Page 1: How To Use This Manual

    Honda must determine the risks to their personal safety and the safe operation of this product. If you need to replace a part, use Honda Genuine parts with the correct part number or an equivalent part. We strongly recommend that you do not use replacement parts of inferior quality.
  • Page 2 As you read this manual, you will find information that is STARTING SYSTEM preceded by a symbol. The purpose of this message is to help prevent damage to this Honda OTHER ELECTRICAL product, other property, or the environment. MUFFLER SAFETY MESSAGES CYLINDER HEAD/VALVES Your safety and the safety of others are very important.
  • Page 3 62Z5F00Z.book 3 ページ 2010年6月23日 水曜日 午後2時57分 How to use this manual SYMBOLS The symbols used throughout this manual show specific service procedures. If supplementary information is required pertaining to these symbols, it will be explained specifically in the text without the use of the symbols. Replace the part(s) with new one(s) before assembly.
  • Page 4 62Z5F00Z.book 4 ページ 2010年6月23日 水曜日 午後2時57分 How to use this manual ABBREVIATIONS Throughout this manual, the following abbreviations are used to identify the respective parts or systems. Abbreviated Full term term Alternator Air Fuel Ratio American Petroleum Institute Approx. Approximately Assy. Assembly ATDC After Top Dead Center Automatic Transmission Fluid...
  • Page 5 GX390 Fuel filler cap GX270T2 VSP TYPE: Fuel filter GX270T2 VSP TYPE: Cooling fan set- ting plate GX270UT2 QKE4 TYPE: COOLING FAN STARTER PULLY SETTING PLATE Recoil starter INSTALLING DIRECTION INSTALLING DIRECTION LOW PROFILE AIR CLEANER TYPE: GX270UT2 QAW TYPE:...
  • Page 6 62Z5F00Z.book 6 ページ 2010年6月23日 水曜日 午後2時57分 OUTLINE OF CHANGES How to use this manual Item GX270 GX390 Muffler / Arrest- er / Screws SEPARATED PROTECTOR SEPARATED PROTECTOR SCREW SCREW TYPE: TYPE: ARRESTER ARRESTER MUFFLER MUFFLER...
  • Page 7 62Z5F00Z.book 7 ページ 2010年6月23日 水曜日 午後2時57分 MEMO...
  • Page 8: Specifications

    62Z5F00Z.book 1 ページ 2010年6月23日 水曜日 午後2時57分 1. SPECIFICATIONS TYPE CODE ··················································1-2 PERFORMANCE CURVES··························· 1-5 DIMENSIONS AND WEIGHTS ·····················1-2 DIMENSIONAL DRAWINGS························· 1-6 ENGINE SPECIFICATIONS ··························1-4 P.T.O. DIMENSIONAL DRAWINGS ············· 1-8...
  • Page 9: Dimensions And Weights

    62Z5F00Z.book 2 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS TYPE CODE SPECIFICATIONS Model GX270T2 GX270UT2 Type HEA2 PAE2 P. T. O. V type H type P type Model GX270UT2 Type QA26 QAE2 QAG2 QAQ4 P. T. O. Q type Model GX270UT2 Type QAR2 QH26...
  • Page 10: Equipment Variation

    62Z5F00Z.book 3 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS Model GX270T2 GX270UT2 Dry weight E type* 25.0 kg (55.1 lbs) H type* 26.5 kg (58.4 lbs) P type* 25.8 kg (57.0 lbs) Q type* S type* V type* 25.8 kg (57.0 lbs) R type* 30.0 kg (66.1 lbs)
  • Page 11: Engine Specifications

    62Z5F00Z.book 4 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS ENGINE SPECIFICATIONS Model GX270T2 GX270UT2 Description code GCBHT GCBGT Type 4 stroke, overhead valve, single cylinder, inclined by 25° Displacement 270 cm3 (16.5 cu–in) Bore x stroke 77.0 x 58.0 mm (3.0 x 2.3 in) Net power (SAE J1349)*1 6.3 kW (8.4 HP) / 3,600 min-1 (rpm)
  • Page 12: Performance Curves

    62Z5F00Z.book 5 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS PERFORMANCE CURVES (N·m) (kgf·m) (lbf·ft) NET TORQUE (KW) (HP) (PS) NET POWER RECOMMENDED OPERATING SPEED RANGE 2000 3000 3600 ENGINE SPEED (rpm)
  • Page 13: Dimensional Drawings

    62Z5F00Z.book 6 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS DIMENSIONAL DRAWINGS *: P. T. O. type. (page 1-2) WITHOUT REDUCTION UNIT TYPE Unit: mm (in) 278 (10.9) 150 (5.9) With control box type: 462 (18.2) CONTROL BOX CRANKSHAFT (P. T. O.) (If equipped) Without control box type: 428 (16.9) 116 (4.6) 192 (7.6) 92 (3.6)
  • Page 14: With Reduction Unit Type

    62Z5F00Z.book 7 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS WITH REDUCTION UNIT TYPE Unit: mm (in) * H:209.9 (8.26) 150 (5.9) * R:187.2 (7.37) * H:68.1 (2.68) CONTROL BOX * R:90.8 (3.57) (If equipped) P. T. O. SHAFT With control box type: 462 (18.2) Without control box type: 428 (16.9) 116 (4.6) 192 (7.6)
  • Page 15 62Z5F00Z.book 8 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS P.T.O. DIMENSIONAL DRAWINGS *: P. T. O. type. (page 1-2) E TYPE* Unit: mm (in) 45° 45° 30° 30° 48.5 (1.91) M8 x 1.25 TAPER (2 PLACES) 1 / 5 (1.4) 28 (1.1) M8 x 1.25 M10 x 1.25 (4 PLACES) Φ8.51(Φ0.335)
  • Page 16 62Z5F00Z.book 9 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS P TYPE* Unit: mm (in) 45° 45° 30° 30° 89 (3.5) 14NF2 Thread R. H. 5/16-24UNF-2B (2 PLACES) 26-27 (1.0-1.1) 5/16-24UNF-2B (4 PLACES) 72.5 (2.85) 3/8-16UNC-2B (4 PLACES) 103 (4.1) CRANKSHAFT (P. T. O.) Q TYPE* Unit: mm (in) 45°...
  • Page 17 62Z5F00Z.book 10 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS S TYPE* Unit: mm (in) 45° 45° M8 x 1.25 30° 30° (2 PLACES) 63 (2.5) M8-1.25 42 (1.7) 7.00 - 7.03 (0.276 - 0.277) 28 (1.1) M8 x 1.25 (4 PLACES) 60 (2.4) 103 (4.1) Φ8.51(Φ0.335) (4 PLACES) CRANKSHAFT (P.
  • Page 18 62Z5F00Z.book 11 ページ 2010年6月23日 水曜日 午後2時57分 SPECIFICATIONS R TYPE* (WITH 1/2 REDUCTION UNIT) Unit: mm (in) M8 x 1.25 (4 PLACES) 35 (1.4) 35 (1.4) M8 x 1.25 34 (1.3) 7.000 - 7.036 25 (1.0) (0.2756 - 0.2770) 50 (2.0) 53 (2.1) REDUCTION UNIT 90.8 (3.57) P.
  • Page 19 62Z5F00Z.book 12 ページ 2010年6月23日 水曜日 午後2時57分 MEMO...
  • Page 20: Service Information

    62Z5F00Z.book 1 ページ 2010年6月23日 水曜日 午後2時57分 2. SERVICE INFORMATION MAINTENANCE STANDARDS ·····················2-2 LUBRICATION & SEAL POINT ···················· 2-3 TORQUE VALUES ········································2-3 TOOLS ·························································· 2-3...
  • Page 21: Maintenance Standards

    62Z5F00Z.book 2 ページ 2010年6月23日 水曜日 午後2時57分 SERVICE INFORMATION MAINTENANCE STANDARDS SERVICE INFORMATION Unit: mm (in) Service Part Item Standard limit Engine Maximum speed (at no load) 3,850 ± 150 min (rpm) – Idle speed – 1,400 ± 150 min (rpm) 0.59 -0.83 MPa (6.0-8.5 kgf/cm , 85-121 Cylinder compression –...
  • Page 22: Engine Torque Values

    62Z5F00Z.book 3 ページ 2010年6月23日 水曜日 午後2時57分 SERVICE INFORMATION Service Part Item Standard limit Ignition coil Air gap 0.2 – 0.6 (0.01 – 0.02) – Starter motor Brush length 7.0 (0.28) 3.5 (0.14) Mica depth 1.0 (0.04) 0.2 (0.01) Charge coil Resistance 3.00 - 4.00 Ω –...
  • Page 23 62Z5F00Z.book 4 ページ 2010年6月23日 水曜日 午後2時57分 MEMO...
  • Page 24: Maintenance

    62Z5F00Z.book 1 ページ 2010年6月23日 水曜日 午後2時57分 3. MAINTENANCE MAINTENANCE SCHEDULE························3-2 REDUCTION CASE OIL (1/2 reduction unit with clutch)··················· 3-3...
  • Page 25: Maintenance Schedule

    62Z5F00Z.book 2 ページ 2010年6月23日 水曜日 午後2時57分 MAINTENANCE MAINTENANCE SCHEDULE MAINTENANCE REGULAR SERVICE PERIOD (2) First Every Every Every month year ITEM Perform at every indicated Each months months Refer to month or operating hour in- 20 hrs. page terval, whichever comes 50 hrs. hrs.
  • Page 26: Reduction Case Oil

    62Z5F00Z.book 3 ページ 2010年6月23日 水曜日 午後2時57分 MAINTENANCE REDUCTION CASE OIL (1/2 reduction unit with clutch) Oil level check Place the engine on a level surface. Remove the reduction oil cap / oil level gauge (1), and wipe the oil level gauge clean. Insert the oil level gauge without screwing it into the oil filler neck (2).

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