Echo CS-2600ES User Manual

00-26B-02		CS-2600ES, CS-2700ES

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(Serial number : 36000001 and after)

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. 40122(Model : CS-2600) contains lots of information for servicing this model.

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 .........................		5
1-5 Service limits ..............................................		6
1-6	Special tools ...............................................	7
2 EMISSION ADJUSTMENT GUIDE ...............		8
2-1	General adjusting rules ..............................	8
2-2	Presetting idle adjust screw, L mixture needle
and H mixture needle .......................................		8
2-3 Adjusting carburettor ................................		10

Reference No. 00-26B-02

R E V I S E D : 2 0 0 5 1 2

I s s u e d : 2 0 0 4 1 2

INDEX

2		SERVICE INFORMATION					CS-2600ES
							CS-2700ES
1 SERVICE INFORMATION
1-1 Specifications
Model				CS-2600, CS-2600ES			CS-2700ES
Dimensions	Length*		mm(in)	257 (10.1)			380 (15.0)
	Width		mm(in)	219 (8.6)			220 (8.7)
	Height		mm(in)	210 (8.3)			230 (9.1)
Dry weight*			kg(lb)	2.9 (6.4)			3.1 (6.8)
Engine	Type			KIORITZ, air-cooled, two-stroke, single cylinder
	Rotation			Clockwise as viewed from the output end
	Displacement		cm3(in3)	26.9 (1.641)
	Bore		mm(in)	35 (1.378)
	Stroke		mm(in)	28 (1.102)
	Compression ratio			5.5
Carburettor	Type			Diaphragm horizontal-draught with auto-return choke
	Model (Walbro)			WT-696, WT-696A, WT-696B			WT-697A, WT-697B
	Venturi size-Throttle bore		mm(in)	9.53 - 14.3 (0.375 - 0.563)
Ignition	Type			CDI (Capacitor discharge ignition) system
				with electronic timing advancer
	Spark plug			BPMR-7A
Starter	Type			ES (Effortless)-start
	Rope diameter x length		mm(in)	3.5 x 750 (0.14 x 29.5)
Fuel	Type			Premixed two-stroke fuel
	Mixture ratio			50 : 1 (2 %)
	Petrol			Minimum 89 octane petrol (RON)
	Two-stroke air cooled engine oil			ISO-L-EGD (ISO/CD13738), JASO FC
	Tank capacity	L (U.S.fl.oz.)		0.39 (13.2)			0.24 (8.1)
Clutch	Type			Centrifugal, 3-shoe slide with 3-tension spring
Guide bar / Saw chain lubrication type				Automatic with volume adjuster
Oil	Tank capacity	L (U.S.fl.oz.)		0.16 (5.4)
Sprocket	Type			Spur
	Number of teeth			6 (Sproket nose bar)			8 (for Carving bar)
	Pitch		in	3/8 (Sproket nose bar)			1/4 (for Carving bar)

* Without guide bar and saw chain.

Cutting devices			Sproket nose bar						Carving
Guide bar	Type		20RC50-3/8		25RC50-3/8		30RC50-3/8		25C50
	Called length	cm	20	25			30	25
	Gauge	in				0.050
Saw chain	Number of drive links		35		40		47		60
	Pitch	in		3/8					1/4
	Gauge	in				0.050

CS-2600ES				SERVICE INFORMATION				3
CS-2700ES
1-2 Technical data
Model						CS-2600, CS-2600ES		CS-2700ES
Engine
	Idling speed				r/min	3000 -		3600
	Operating speed				r/min	8500 -		9000
	High speed (No load full throttle)*				r/min	10500 -		11500
	Clutch engagement speed				r/min	4450 - 4750
	Compression pressure		MPa (kgf/cm2) (psi)			0.69 (7.0) (100)
Ignition system
	Spark plug gap			mm(in)		0.6 - 0.7 (0.024 - 0.028)
	Minimum secondary voltage at 1500 r/min				kV	15
	Secondary coil resistance				kΩ	1.2 - 1.8
	Pole shoe air gaps			mm(in)		0.30 - 0.40 (0.012 - 0.016)
	Ignition timing	at 1500	r/min	° BTDC		12
		at 7500 r/min		° BTDC		29
Carburettor
	Idle adjust screw initial setting			turns in**		1 7/8		1 7/8
	L mixture needle initial setting			turns back		2 3/8		2 3/8
	H mixture needle initial setting			turns back		2 3/8		2 1/2
	Test Pressure, minimum		MPa (kgf/cm2) (psi)			0.05(0.5)(7.0)
	Metering lever height			mm(in)		1.65 (0.06) lower than diaphragm seat
Chain oil discharge volume at 7000 r/ min						Adjustable: 1.5 - 13 (0.05 - 0.40)
		mL/min(U.S.fl.oz./min)				(Factory set		7 mL/min)

BTDC: Before top dead centre. *With 25cm guide bar and saw chain.

**Set idle adjust screw to contact throttle plate before initial setting.

4			SERVICE INFORMATION						CS-2600ES
									CS-2700ES
1-3 Torque limits
Descriptions			Size	kgf•cm			N•m		in•lbf
Starter	Starter pawl		M 5*	40	- 60		4	- 6	35	- 50
system
	Starter case		M 4**	10	- 20		1	- 2	9	- 18
Ignition	Magneto rotor (Flywheel)		M 8	160	- 200		16	- 20	140	- 175
system
	Ignition coil		M 5*	30	- 45		3.0	- 4.5	26	- 40
	Spark plug		M 14	130	- 170		13	- 17	115	- 150
Fuel	Carburettor		M 5	30	- 45		3.0	- 4.5	26	- 40
system
	Intake bellows		M 5	35	- 50		3.5	- 5.0	30	- 44
Clutch	Clutch hub		LM 10	230	- 260		23	- 26	200	- 230
Engine	Crankcase		M 5*†	55	- 95		5.5	- 9.5	48	- 83
	Engine mount		M 5	70	- 110		7	- 11	60	- 95
	Dust cover (Only CS-2600)		M 4**	10	- 20		1	- 2	9	- 18
	Muffler		M 5	70	- 100		7	- 10	60	- 90
	Muffler cover		M 4**	10	- 20		1	- 2	9	- 18
Others	Auto-oiler		M 4	15	- 25		1.5	- 2.5	13	- 22
	Front handle		M 5**	20	- 40		2	- 4	18	- 35
		(CS-2600ES)	M 4**	10	- 20		1	- 2	9	- 18
		(CS-2700ES)	M 4**	8	- 12		0.8	- 1.2	7	- 10
	Top handle (CS-2600ES)		M 4**	10	- 20		1	- 2	9	- 18
	Rear handle (CS-2700ES)		M 4**	10	- 20		1	- 2	9	- 18
	Top handle assembly		M 4**	20	- 30		2	- 3	18	- 26
		(CS-2600ES)
	Rear handle assembly		M 4**	20	- 30		2	- 3	18	- 26
		(CS-2700ES)
	Brake lever (Hand guard)		M 5	25	- 45		2.5	- 4.5	22	- 40
	Chain catcher		M 5**	20	- 40		2	- 4	18	- 35
	Guide bar stud		M 8	180	- 250		18	- 25	130	- 220
	Guide bar		M 8	200	- 230		20	- 23	175	- 200
Regular bolt, nut and screw			M 3	6	- 10		0.6	- 1.0	5	- 9
			M 4	15	- 25		1.5	- 2.5	13	- 22
			M 5	25	- 45		2.5	- 4.5	22	- 40
			M 6	45	- 75		4.5	- 7.5	40	- 65

LM: Left-hand thread *Apply thread locking sealant (See next page) ** Tapping screw

† The torque differences among four bolts should not exceed 20 kgf•cm (2Nm, 17in•lbf) on one cylinder or crankcase.