Echo CS-4400 Service Data
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Echo CS-4400 Service Data

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01-44C-01
INTRODUCTION
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.
ECHO SERVICE MANUAL Ord.401-21
(Model:CS-4200,CS-4400) contains lots of
information for servicing this model.
INDEX
CS-4400, CS-5100
1 SERVICE INFORMATION ............................. 2
1-1 Specification ............................................... 2
1-2 Technical data ............................................ 3
1-3 Torque limits ............................................... 4
1-4 Special repairing materials ......................... 5
1-5 Service limits .............................................. 6
1-6 Special tools ............................................... 8
2 EMISSION ADJUSTMENT GUIDE ............... 9
CS-4400
2-1 General adjusting rules .............................. 9
and H mixture needle ....................................... 9
CS-5100
2-1 General adjusting rules ............................ 11
and H mixture needle ..................................... 11
2-3 Adjusting carburettor ................................. 12
CONTENTS
01-44C-01
Reference No.
R E V I S E D :
2 0 0 5 1 0
ISSUED: 200410
1
0
page

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Summary of Contents for Echo CS-4400

  • Page 1: Table Of Contents

    2 EMISSION ADJUSTMENT GUIDE ....9 ECHO SERVICE MANUAL Ord.401-21 CS-4400 (Model:CS-4200,CS-4400) contains lots of 2-1 General adjusting rules ......9 information for servicing this model. 2-2 Presetting idle adjust screw, L mixture needle and H mixture needle ........9 2-3 Adjusting idle speed and WOT speed ..

  • Page 2: Service Information

    CS-4400 SERVICE INFORMATION CS-5100 1 SERVICE INFORMATION 1-1 Specifications Model CS-4400 CS-5100 Dimensions Length* mm(in) 398 (15.7) Width mm(in) 252 (9.9) Height mm(in) 272 (10.7) Dry weight* kg(lb) 4.6 (10.1) 4.9 (10.8) Engine Type KIORITZ, air-cooled, two-stroke, single cylinder Rotation...

  • Page 3: Technical Data

    Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028) Minimum secondary voltage 14.5 23.0 (CS-4400 at 800 r/min, CS-5100 at 1500 r/min) Secondary coil resistance kΩ 1.7 - 2.2 Pole shoe air gaps mm (in) 0.30 - 0.40 (0.012 - 0.016) °BTDC...

  • Page 4: Torque Limits

    CS-4400 SERVICE INFORMATION CS-5100 1-3 Torque limits Descriptions Size kgf•cm N•m in•lbf Starter Starter pawl M 5* 70 - 110 7 - 11 60 - 95 system Starter case M 4** 30 - 45 3.0 - 4.5 26 - 40...

  • Page 5: Special Repairing Materials

    CS-4400 CS-5100 SERVICE INFORMATION 1-4 Special repairing materials Material Location Remarks Adhesive Ball bearing outer / crankcase Loctite #675 or equivalent Stud bolt Loctite #609, ThreeBond #1373 or equivalent Engine cover, cushion Loctite #406 (424) or equivalent Liquid gasket Crankcase seams...

  • Page 6: Service Limits

    CS-4400 SERVICE INFORMATION CS-5100 1-5 Service Limits (CS-4400) 5K177 5K083 5K084 5K081 5K082 5K016 5K025 5K178 5K173 5K191B 5K174 5K171 mm (in) A Cylinder bore When plating is worn and aluminium can be seen B Piston outer diameter Min. 42.87 (1.688) C Piston pin bore Max.
  • Page 7 CS-4400 CS-5100 SERVICE INFORMATION 1-5 Service Limits (CS-5100) 5K177 5K083 5K084 5K081 5K082 5K016 5K025 5K178 5K173 5K097 5K174 5K181 5K097 mm (in) A Cylinder bore When plating is worn and aluminium can be seen B Piston outer diameter Min.

  • Page 8: Special Tools

    CS-4400 SERVICE INFORMATION CS-5100 1-6 Special tools a = 3 mm a = 4 mm Key Part Number Description Used for: 897801-33330 Tachometer PET-1000 Measuring engine speed to adjust carburettor 895612-79920 L-hex wrench (3 mm) Removing and installing hex. socket bolt (M4)

  • Page 9: Emission Adjustment Guide

    CS-4400 CS-5100 SERVICE INFORMATION 2 EMISSION ADJUSTMENT GUIDE CS-4400 2-1 General adjusting rules 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 10: Adjusting Idle Speed And Wot Speed

    CS-4400 SERVICE INFORMATION CS-5100 CS-4400 2-3 Adjusting carburettor 1. Start engine and warm it up well for 2 - 3 minutes with cycle of 5 seconds at WOT (Wide Open Throttle) idle adjust screw and 10 seconds at idling. 2. Using 2.5 mm wide blade screw driver, adjust L mixture needle to obtain maximum idle speed.

  • Page 11: General Adjusting Rules

    CS-4400 CS-5100 SERVICE INFORMATION CS-5100 2-1 General adjusting rules 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 12 CS-4400 SERVICE INFORMATION CS-5100 CS-5100 2-2 Presetting idle adjust screw, L mixture needle and H mixture needle (continued) 5. While holding bolt with L wrench, turn the nut clockwise to take out the limiter cap. 6. Repeat step No.3 to No.5 for other limiter cap removal.

  • Page 13: Adjusting Carburettor

    CS-4400 CS-5100 SERVICE INFORMATION CS-5100 2-3 Adjusting carburettor 1. Start engine and warm it up well for 2 - 3 minutes with cycle of 5 seconds at WOT (Wide Open Throttle) and 10 seconds at idling. 2. Using 1.5 mm wide blade screw driver, adjust L mixture needle to obtain maximum idle speed.

This manual is also suitable for:

Cs-5100

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