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CS-370ES01-36E-00

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.

CONTENTS

page

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 CARBURETTOR ADJUSTMENT PROCEDURE .

2-1 General adjusting rules .............................. 7

2-2 Presetting idle adjust screw, L mixture needle

and H mixture needle ........................................ 7

2-3 Adjusting carburettor .................................. 9

Reference No. 01-36E-00

ISSUED: 200703

INDEX

Summary of content (9 pages)

PAGE 1
CS-370ES 01-36E-00 0 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. CONTENTS page 1 SERVICE INFORMATION ............................. 2 1-1 Specification ............................................... 2 1-2 Technical data ...
PAGE 2
SERVICE INFORMATION CS-370ES 1 SERVICE INFORMATION 1-1 Specifications Model Dimensions Length* mm(in) Width mm(in) Height mm(in) Dry weight* kg(lb) Engine Type Rotation Displacement cm3(in3) Bore mm(in) Stroke mm(in) Compression ratio Carburetor Type Model Venturi size-Throttle bore mm(in) Ignition Type Spark plug Starter Type Rope diameter x length mm(in) Fuel Type Mixture ratio Petrol Two-stroke air cooled engine oil Tank capacity L (U.S.fl.oz.
PAGE 3
CS-370ES 3 SERVICE INFORMATION 1-2 Technical data Engine Idling speed r/min Wide open throttle speed* r/min Clutch engagement speed r/min Compression pressure MPa (kgf/cm2) (psi) Ignition system Spark plug gap mm(in) Minimum secondary voltage at 1000 r/min kV Secondary coil resistance kΩ Pole shoe air gaps mm (in) Ignition timing at 3000 r/min °BTDC at 8000 r/min °BTDC at 10,000 r/min °BTDC at 12,500 r/min °BTDC Carburetor Idle adjust screw initial setting turns in** L mixture needle initial setting turn
PAGE 4
SERVICE INFORMATION CS-370ES 1-3 Torque limits Descriptions Starter Starter pawl system Starter case Size M5 M 5** kgf•cm 40 - 60 25 - 35 N•m 4- 6 2.5 - 3.5 in•lbf 35 - 50 22 - 30 Ignition Magneto rotor (Flywheel) system Ignition coil M8 M5 250 - 290 40 - 60 25 - 29 4- 6 220 - 250 35 - 50 Ignition switch Spark plug Fuel Carburettor system carburetor elbow M 14 M 14 M5 M 5** 15 150 30 20 - 30 170 45 30 1.5 15 3 2 - 3 17 4.
PAGE 5
SERVICE INFORMATION CS-370ES 1-5 Service Limits A 5K275 E 5K280 K B 5K277 F 5K016 C D 5K278 5K279 G H 5K276 5K042 L M P N 1 5K173 5K174 5K190 5K191 2 3 4 Description A Cylinder bore B Piston outer diameter C Piston pin bore D Piston ring groove E Piston ring side clearance F Piston pin outer diameter G Piston ring width H Piston ring end gap K Con-rod small end bore L Crankshaft runout M Sprocket bore N Clutch drum bore P Sprocket wear limit Min. Max. Max. Max. Min. Min. Max.
PAGE 6
SERVICE INFORMATION CS-370ES 1-6 Special tools 1 2 a = 3 mm 3 a = 4 mm 4 5 8 9 a 7 6 60 80 10 0 40 12 20 0 5 1.3 1.6 14 0 16 0 5 18 0 20 0.4 12 15 14 16 9 01 91 13 17 18 Ig ni tio n #. A 01 ir 4 G P = ap /N . 3 G 91 5m a 00 m ug e 4 11 1.
PAGE 7
SERVICE INFORMATION CS-370ES 7 2 CARBURETTOR ADJUSTMENT PROCEDURE 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. 3. The muffler exhaust port must be clear of carbon. 4. The fuel lines, tank vent and fuel filter are in good condition and clear of debris. 5.
PAGE 8
SERVICE INFORMATION CS-370ES 2-2 Presetting idle adjust screw, L mixture needle and H mixture needle (continued) 2. Screw threaded end of limiter cap removal tool 91019 with 2.5 mm left-hand thread into center hole of limiter cap anticlockwise until tab of the limiter cap just comes out of the locating slot.
PAGE 9
SERVICE INFORMATION CS-370ES 2-3 Adjusting carburettor Idle adjust screw 1. Start engine and warm it up at idle for one minute. Turn H mixture needle anticlockwise until engine speed drops to approx. 11,000 r/min. 2. Warm it up well for 100 sec alternating engine speed between WOT (Wide Open Throttle) for 5 seconds and idle for 5 seconds . NOTE : Do not run engine at high speed without load longer than 5 seconds, or engine damage may occur. L mixture needle H mixture needle 3.