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Echo HCA-2500 Service Data

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15-23C-00
lNTRODUCTION
We are constantly working on technical
improvement of our products. For this reason,
technical data, equipment and design are
subject to change without notice. All
specifications, illustrations and directions in
this SERVICE DATA are based on the latest
products information available at the time of
publication.
INDEX
HCA-2500
1 SERVICE INFORMATION ............................. 2
1-1 Specification ............................................... 2
1-2 Technical data ............................................ 3
1-3 Torque limits ............................................... 4
1-4 Special repairing materials ........................ 4
1-5 Service limits .............................................. 5
1-6 Special tools ............................................... 6
2 EMISSION ADJUSTMENT GUIDE ............... 7
2-1 General adjusting rules .............................. 7
and H mixture needle ........................................ 7
2-3 Adjusting carburettor .................................. 9
CONTENTS
15-23C-00
Reference No.
I S S U E D :
2 0 0 6 0 6
1
1
page

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Summary of Contents for Echo HCA-2500

  • Page 1: Table Of Contents

    HCA-2500 15-23C-00 lNTRODUCTION CONTENTS page We are constantly working on technical 1 SERVICE INFORMATION ......2 improvement of our products. For this reason, 1-1 Specification ..........2 1-2 Technical data ..........3 technical data, equipment and design are 1-3 Torque limits ..........4 subject to change without notice.

  • Page 2: Service Information

    SERVICE INFORMATION HCA-2500 1 SERVICE INFORMATION 1-1 Specifications Dimensions Length mm(in) 2330 (91.7) Width mm(in) 225 (9.3) Height mm(in) 225 (9.3) Dry weight kg(lb) 6.4 (14.1) Engine Type KIORITZ, air-cooled, two-stroke, single cylinder Rotation Anticlockwise as viewed from the output end Displacement 23.6 (1.440)

  • Page 3: Technical Data

    HCA-2500 SERVICE INFORMATION 1-2 Technical data Engine Idling speed r/min 2400 - 3200 Operating speed r/min 7000 - 8000 Wide open throttle speed r/min 9000 - 10500 Clutch engagement speed r/min 3700 - 4300 Compression pressure MPa (kgf/cm ) (psi) 0.94 (9.6) (136)

  • Page 4: Torque Limits

    SERVICE INFORMATION HCA-2500 1-3 Torque limits Descriptions Size kgf•cm N•m in•lbf Starter Pawl carrier 80 - 100 8 - 10 70 - 85 system Starter case M 4* 22 - 28 2.2 - 2.8 19 - 24 Ignition Ignition coil (CDI module)

  • Page 5: Service Limits

    HCA-2500 SERVICE INFORMATION 1-5 Service limits 5K193 5K228 5K229 5K230 5K231 5K016 5K042 5K194 5K171 5K232 Description mm (in) Cylinder bore When plating is worn and aluminium can be seen Piston outer diameter Min. 33.91 (1.335) Piston pin bore Max.

  • Page 6: Special Tools

    SERVICE INFORMATION HCA-2500 1-6 Special tools 4 : a=3mm 5 : a=4mm Part Number Description Used for: 897801-33330 Tachometer PET-1000 Measuring engine speed to adjust carburettor 363018-00310 Washer Installing crankcase oil seal of starter side 433019-12330 Flange nut Removing magneto rotor (flywheel)

  • Page 7: Emission Adjustment Guide

    HCA-2500 SERVICE INFORMATION 2 EMISSION ADJUSTMENT GUIDE 2-1 General adjusting rules A. Before starting the unit for adjustment, check the following items. 1. The correct spark plug must be clean and properly gapped. 2. The air filter element must be clean and properly installed.
  • Page 8 SERVICE INFORMATION HCA-2500 2-2 Presetting idle adjust screw, L mixture needle and H mixture needle (continued) 3. Remove the limiter cap tool from the limiter cap turning the tool clockwise, leaving the limiter cap in place. 4. Screw threaded end of limiter cap tool 91019 into...

  • Page 9: Adjusting Carburettor

    HCA-2500 SERVICE INFORMATION 2-3 Adjusting carburettor 1. Start engine and warm it up alternating engine speed between WOT and idle every 5 seconds for 1 minute . 2. Using 2.5 mm wide blade screw driver, adjust L mixture needle to obtain maximum idle speed.
  • Page 10 SERVICE INFORMATION HCA-2500 2-3 Adjusting carburettor (Continued) 8. After adjusting carburettor, put new limiter cap on the other side of limiter cap tool as shown, and press the limiter caps to the bottoms on L and H mixture needles respectively.

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