Echo CS-3000 TYPE 1E Mounting instructions

CS-3000, CS-3400
00-30D-00 1
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-
20(Model : CS-3000, CS-3050, CS-3400,
CS-3450) contains lots of information for
servicing this model.
0
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.................................. 9
Reference No. 00-30D-00
ISSUED: 200411

SERVICE INFORMATION CS-3000
CS-3400
2
1 SERVICE INFORMATION
1-1 Specifications
Model CS- 3000 CS-3400
Dimensions Length* mm(in) 260 (10.2)
Width mm(in) 230 (9.1)
Height mm(in) 220 (8.7)
Dry weight* kg(lb) 3.4 (7.5)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Clockwise as viewed from the output end
Displacement cm3(in3) 30.1 (1.837) 33.4 (2.038)
Bore mm(in) 37.0 (1.457) 39.0 (1.535)
Stroke mm(in) 28.0 (1.102) 28.0 (1.102)
Compression ratio 6.5 6.8
Carburettor Type Diaphragm horizontal-draught
Model Walbro WT-402B
Venturi size-Throttle bore mm(in) 9.53 - 14.3 (0.375 - 0.563)
Ignition Type CDI (Capacitor discharge CDI (Capacitor discharge
ignition) system ignition) system with
electronic timing advancer
Spark plug BPMR7A
Starter Type Automatic rewind
Rope diameter x length mm(in) 3.0 x 850 (0.12 x 33.5)
Fuel Type Premixed two-stroke fuel
Mixture ratio 50 : 1 (2 %)
Petrol Minimum 89 octane petrol (RON)
Two-stroke air cooled engine oilISO-L-EGD (ISO/CD13738), JASO FC
Tank capacity L (U.S.fl.oz.) 0.25 (7.6)
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.) 0.15 (5.1)
Sprocket Type Spur
Number of teeth 6
Pitch in 3/8
Cutting devices
Guide bar Type 30RC50-3/8 35RC50-3/8
Called length cm 30 35
Gauge in 0.050
Saw chain Number of drive links 47 53
Pitch in 3/8
Gauge in 0.050
* Without guide bar and saw chain.

SERVICE INFORMATION
CS-3000
CS-3400 3
1-2 Technical data
Model CS-3000 CS-3400
Engine
Idling speed r/min 2700 - 3500
Operating speed r/min 8000 - 8500
Wide open throttle speed* r/min 9000 - 12000
Clutch engagement speed r/min 4000 - 4600
Compression pressure MPa (kgf/cm2) (psi) 0.86 (8.8) (125) 1.00 (10.2) 145
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 kΩ1.2 -1.8 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 16
at 3000 r/min °BTDC 33 17.5
at 7500 r/min °BTDC 31
Carburettor
Idle adjust screw initial setting turns in** 1 3/4 2 1/8
L mixture needle initial setting turns back 1 1/4 1 1/4
H mixture needle initial setting turns back 1 1/2 1 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 30cm guide bar and saw chain.
**Set idle adjust screw to contact throttle plate before initial setting.

SERVICE INFORMATION CS-3000
CS-3400
4
1-3 Torque limits
Descriptions Size kgf•cm N•m in•lbf
Starter Starter pawl M5* 40 - 60 4 - 6 35 - 50
system Starter case M4** 10 - 20 1 - 2 9 - 17
Ignition Magneto rotor (Flywheel) M8 160 - 200 16 - 20 140 - 175
system Ignition coil M5* 30 - 45 3.0 - 4.5 26 - 40
Spark plug M14 150 - 170 15 - 17 130 - 150
Fuel Carburettor M5 30 - 45 3.0 - 4.5 26 - 40
system Intake insulator M5 40 - 50 4 - 5 35 - 45
Read valve M3 8 - 12 0.8 - 1.2 7 - 10
Clutch Clutch hub LM10 230 - 260 230 - 260 200 - 225
Engine Crankcase M5* 30 - 50 3 - 5 26 - 44
Engine mount M5 70 - 110 7 - 11 60 - 95
Muffler M5 60 - 100 6 - 10 50 - 90
Others Cushion Front handle M5 15 - 25 1.5 - 2.5 13 - 22
Engine cover M4** 20 - 40 2 - 4 17 - 35
Auto-oiler M5 25 - 45 2.5 - 4.5 22 - 40
Front handle assembly M5* 30 - 45 3.0 - 4.5 26 - 40
M4** 20 - 40 2 - 4 17 - 35
Rear handle assembly M5 20 - 30 2 - 3 17 - 26
M4 14 - 28 1.4 - 2.8 12 - 24
Brake lever (Hand guard) M5 25 - 45 2.5 - 4.5 22 - 40
Chain catcher M5** 20 - 40 2 - 4 17 - 35
Guide bar M6 90 - 110 9 - 11 80 - 95
Sprocket guard plate M4** 10 - 20 1 - 2 9 - 17
Regular bolt, nut, M3 6 - 10 0.6 - 1.0 5 - 9
and screw M4 15 - 25 1.5 - 2.5 13 - 22
M5 25 - 45 2.5 - 4.5 22 - 40
M6 45 - 75 4.5 - 7.5 40 - 65
LM: Left-hand thread *Apply thread locking sealant (See below) ** Tapping screw
1-4 Special repairing materials
Material Location Remarks
Adhesive Ball bearing outer/ crankcase Loctite #675 or equivalent
Stud bolt Loctite #609, TreeBond 1373 or equivalent
Liquid gasket Crankcase seams Loctite #515 (990610-000051) or equivalent
Thread locking sealant Starter pawl screws ThreeBond #1324 or equivalent
Ignition coil screws ThreeBond #1342 or equivalent
Brake lever screws
Grease Auto-oiler worm
Clutch needle bearing Lithium based grease
Rewind spring
Oil seal lip
Chain brake (metal contact part) Molybdenum grease (approx. 1 gram)

SERVICE INFORMATION
CS-3000
CS-3400 5
5K177 5K040B 5K025B 5K038B
5K043B 5K016 5K042 5K178
5K173 5K174 5K190 5K191
0
5
10
123
45678910 11
1-5 Service Limits
mm (in)
A Cylinder bore When plating is worn and aluminium can be seen
B Piston outer diameter Min. 36.91 (1.453) 38.89 (1.531)
C Piston pin bore Max. 8.030 (0.3161)
D Piston ring groove Max. 1.3 (0.051) 1.6 (0.063)
E Piston ring side clearance Max. 0.15 (0.006) 0.1 (0.004)
F Piston pin outer diameter Min. 7.980 (0.3142)
G Piston ring width Min. 1.15 (0.045) 1.45 (0.057)
H Piston ring end gap Max. 0.5 (0.02)
K Con-rod small end bore Max. 11.025 (0.4341)
L Crankshaft runout Max. 0.05 (0.002)
M Sprocket bore Max. 13.08 (0.515)
N Clutch drum bore Max. 61.0 (2.40)
P Sprocket wear limit Max. 0.5 (0.02)
ABCD
FGH
LMP
N
E
K

SERVICE INFORMATION CS-3000
CS-3400
6
1.35
0.4
1.65
1.5
2600
2600
20
20
40
40
60
60
80
80
120
120
140
140
160
160
180
180
20
20
100
100
1-6 Special tools
145
2
69
10 11 13
12
14 15
16
18
3
8
Key Part Number Description Used for:
1 897801-33330 Tachometer PET-1000 Measuring engine speed to adjust carburettor
2 895610-79920 L-hex wrench (4 mm) Removing and installing hex. socket bolt (M5)
3 897501-03938 Puller Removing magneto rotor
4 X640-000011 Clutch tool Removing and assembling clutch assembly
5 897537-30130 Piston stopper Locking crankshaft rotation
6 897563-19830 Metering lever gauge Measuring metering lever height on carburettor
7 897701-02830 Bearing wedge Removing and crankshaft ball bearings
8 897702-30131 Piston pin tool Removing and installing piston pin
9 897708-19835 Worm puller Removing auto-oiler worm
10 Y089-000010 Worm inserter Installing auto-oiler worm
11 897724-01361 Spring pin tool Removing and installing spring pin (4 mm or 5/32 in dia.)
12 897726-09130 Oil seal tool Installing oil seals
13 897800-79931 Spark tester Checking ignition system
14 897803-30132 Pressure tester Testing carburettor and crankcase leakage
15 897826-16131 Pressure rubber plug Plugging intake port to test crankcase / cylinder leakages
16 897827-16131 Pressure plate Plugging intake port to test crankcase / cylinder leakages
17 897828-12330 Pressure rubber plug Plugging exhaust port to test crankcase / cylinder leakages
18 897835-16131 Pressure connector Checking crankcase and cylinder leakages
19 91007 Compression gauge Measuring cylinder compression
20 990610-000051 LOCTITE #515 Liquid gasket
7
17 19 20

SERVICE INFORMATION
CS-3000
CS-3400 7
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.
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. The fuel is fresh ( > 89 octane : RON) and properly mixed at 50 : 1 with “ISO L-EGD” 2-stroke oil.
6. The recommended bar and chain must be installed to the power head, and properly tensioned.
NOTE : Make sure of proper installation of 30cm guide bar and saw chain when adjusting carburettor, or
serious engine damage will occur due to overspeeding.
2-2 Presetting idle adjust screw, L mixture needle and H mixture needle
1. Turn the L and H mixture needles out
anticlockwise to rich side stop, and meet limiter cap
tabs (A) with locating slots (B).
2. Screw 2.5 mm wood screw into the center of the
L limiter cap.
NOTE : Screw the wood screw in until it lightly
contacts L mixture needle in the cap.
3. Pull the wood screw with limiter cap using pliers.
4. Repeat Step 2 and Step 3 for H limiter cap
removal.
5. Turn L and H mixture needle clockwise until lightly
seated. and then turn out both needles following
turns.
L mixture needle: 1 1/4, H mixture needles: 1 1/2
NOTE : If needles are forced during seating, damage
to carburettor may occur.
6. Turn idle adjust screw anticlockwise and set the
screw until the tip to just contact throttle plate.Then
turn idle adjust screw 1 3/4 (CS-3000),
2 1/8 (CS-3400) turns clockwise.
HL
idle adjust screw
H
L
(B)
(B)
(A)
(A)
2 EMISSION ADJUSTMENT GUIDE

SERVICE INFORMATION CS-3000
CS-3400
8
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 2.5 mm wide blade screw driver, adjust L
mixture needle to obtain maximum idle speed.
3.
Set idle speed to 4,200 r/min by turning idle adjust
screw (in the range of 4,100 to 4,300 r/min allowable).
4. Turn L mixture needle anticlockwise to reduce
engine idle speed 1,000 r/min to set idle speed in
the range of 3,100 to 3,300 r/min.
NOTE : Engine speed must be allowed to stabilize
a minimum of 20 seconds after each adjustment of
L mixture needle to assure accurate tachometer
readings.
5. Turn H mixture needle anticlockwise at WOT until
engine speed drops less than 10,000 r/min.
6.Adjust WOT engine speed in the range of 10,500
to 11,500 r/min byturning H mixture needleclockwise.
NOTE : Do not run engine at high speed without
load longer than 5 seconds, or engine damage may
occur.
7.
If the engine speed at WOT is above 12,000 r/min ,
adjust H mixture needle anticlockwise and set
maximum engine speed at less than 12,000 r/min.
8. After adjusting carburettor, put the limiter cap on
the tip of 2.5 mm wood screw and install the caps
on L and H mixture needles.
NOTE : Align the limiter cap tabs (A) with locating
slots (B) in extended housing of carburettor.
9. Tap the respective limiter caps in as shown.
10.Start engine again and make it sure engine runs
at idle speed in the range of 2,700 to 3,500 r/min
and at WOT engine speed in the range of 9,000 to
12,000 r/min.Also make it sure chain would not turn
at engine idle speed and suitable acceleration.
NOTE : Initial carburettor setting (Idle adjust screw,
L and H mixture needles) shown here is to start the
engine after restoration or carburettor change. Idle
adjust screw, L and H needles turn for designated
engine revolution through procedures indicated here
may vary.As long as idle and WOT engine speed is
set in given range, variance would be ignorable.
idle adjust screw
H
L
(B)
(B)
(A)
(A)