Echo Blower PB 2100 User Manual

1
21-21H-00  
PB-2100,PB-2155,PB-2200SI  
2
INTRODUCTION  
CONTENTS  
page  
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. 403-11  
(Model : PB-2100, PB-2110, ES-2100, ES-  
2400) contains lots of information for servicing  
this model.  
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  
2-2 Presetting idle adjust screw, L mixture needle  
and H mixture needle....................................... 7  
2-3 Adjusting carburettor.................................. 8  
Reference No. 21-21H-00  
I S S U E D :  
2 0 0 4 11  
INDEX  
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PB-2100  
PB-2155  
PB-2200SI  
3
SERVICE INFORMATION  
1-2 Technical data  
Model  
PB-2100  
PB-2155  
PB-2200SI  
Engines  
Idling speed  
r/min  
r/min  
MPa (kgf/cm2) (psi)  
2400 - 3200  
6800 - 7700  
0.83(8.4)120  
Wide open throttle speed*  
Compression pressure  
Ignition system  
Spark plug gap  
mm(in)  
0.6 - 0.7 (0.024 - 0.028)  
Minimum secondary voltage at 1500 r/min  
Secondary coil resistance  
kV  
16  
k  
1.2 - 1.8  
Pole shoe air gaps  
Ignition timing  
mm(in)  
0.3 - 0.4 (0.012 - 0.016)  
28  
°BTDC  
Carburettor  
Idle adjust screw initial setting  
L mixture needle initial setting  
H mixture needle initial setting  
Test Pressure, minimum  
Metering lever height  
turn in**  
turn back  
1 1/2  
1 1/2  
1 3/4  
1 1/2  
turn back  
MPa (kgf/cm2) (psi)  
1 1/2  
0.05 (0.5) (7.0)  
mm(in)  
0.1 - 0.25 (0.004-0.010) lower than diaphragm seat  
BTDC: Before top dead centre.  
* With all blower pipes.  
** Set idle speed screw to contact throttle plate before initial setting.  
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PB-2100  
PB-2155  
PB-2200SI  
4
SERVICE INFORMATION  
1-3 Torque limits  
Descriptions  
Size  
M8  
kgf•cm  
80 - 100  
25 - 35  
N•m  
in•lbf  
70 - 85  
22 - 30  
30 - 45  
130 - 150  
22 - 35  
30 - 40  
60 - 95  
60 - 95  
30 - 45  
50 - 85  
26 - 40  
140 - 175  
140 - 175  
5 - 9  
Starter Pawl carrier  
8 - 10  
system  
Starter case  
M4*  
M4  
2.5 - 3.5  
3.5 - 5.0  
15 - 17  
2.5 - 4.0  
3.5 - 4.5  
7 - 11  
Ignition CDI module (Ignition coil)  
35 - 50  
system  
Spark plug  
M14  
M5*  
M5  
150 - 170  
25 - 40  
Fuel  
system  
Carburettor insulator  
Carburettor  
35 - 45  
70 - 110  
70 - 110  
35 - 50  
Engine Crankcase  
Cylinder  
M5  
M5  
7 - 11  
Engine mount  
Muffler  
M4*  
3.5 - 5.0  
6 - 10  
M5  
60 - 100  
30 - 45  
Others Fan case  
Fan hub  
M5†  
M8*  
M8*  
M3  
3.0 - 4.5  
16 - 20  
16 - 20  
0.6 - 1.0  
1.5 - 2.5  
2.5 - 4.5  
4.5 - 7.5  
11 - 15  
160 - 200  
160 - 200  
6 - 10  
Fan  
Regular bolt, nut,  
and screw  
M4  
15 - 25  
13 - 22  
22 - 40  
40 - 65  
95 - 130  
M5  
25 - 45  
M6  
45 - 75  
M8  
110 - 150  
*Apply thread locking sealant (See below)  
Tapping screw  
1-4 Special repairing materials  
Material  
Thread locking sealant Starter case bolts  
CDI module (Ignition coil)  
Location  
Remarks  
Carburettor insulator screws  
Engine mount  
Fan hub  
Loctite #222, ThreeBond 1342 or equivalent  
Fan  
Grease  
Rewind spring  
Starter center post  
Lithium based grease  
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PB-2100  
PB-2155  
PB-2200SI  
5
SERVICE INFORMATION  
1-5 Service Limits  
A
B
C
D
5K193  
5K228  
5K229  
5K230  
F
G
H
E
5K231  
5K016  
5K042  
5K194  
K
5K171  
Description  
A Cylinder bore  
When plating is worn and aluminium can be seen  
B Piston outer diameter  
C Piston pin bore  
D Piston ring groove  
Min.  
Max.  
Max.  
Max.  
Min.  
32.13 (1.265)  
8.030 (0.3161)  
1.6 (0.063)  
E Piston ring side clearance  
F Piston pin outer diameter  
G Piston ring width  
0.1 (0.004)  
7.970 (0.3138)  
1.45 (0.057)  
0.5 (0.02)  
Min.  
H Piston ring end gap  
K Crankshaft runout  
Max.  
Max.  
0.05 (0.002)  
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PB-2100  
PB-2155  
PB-2200SI  
6
SERVICE INFORMATION  
1-6 Special tools  
1
2
4
5
3
a = 3 mm  
a = 4 mm  
7
6
9
8
10  
14  
11  
15  
12  
13  
80  
0
100  
0
60  
0
0
120  
40  
0
0
140  
20  
4
0
0
160  
6
0
180  
8
0
20  
0
Key Part Number  
Description  
Used for:  
1
2
3
4
5
6
7
8
9
897801-33330 Tachometer PET-1000 Measuring engine speed to adjust carburettor  
363018-00310 Washer  
Installing crankcase oil seal of starter side  
Removing magneto rotor (flywheel)  
433019-12330 Flange nut  
895612-79920 L-hex wrench (3 mm)  
895610-79920 L-hex wrench (4 mm)  
897701-06030 Bearing wedge  
897701-14732 Bearing tool  
897702-30131 Piston pin tool  
Removing and installing hex. socket bolt (M4)  
Removing and installing hex. socket bolt (M5)  
Removing and crankshaft ball bearings  
Removing and installing crankcase ball bearings  
Removing and installing piston pin  
897705-11520  
Bearing tool  
Removing and installing con-rod small end needle bearing  
Installing oil seals  
10 897714-24330 Oil seal tool  
11 897800-79931 Spark tester  
12 897803-30132 Pressure tester  
13 897835-16131 Pressure connector  
14 900100-08008 Bolt  
Checking ignition system  
Testing carburettor and crankcase leakage  
Checking crankcase and cylinder leakages  
Removing magneto rotor (flywheel)  
15  
91007  
Compression gauge  
Measuring cylinder compression  
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PB-2100  
PB-2155  
PB-2200SI  
7
SERVICE INFORMATION  
2 EMISSION ADJUSTMENT GUIDE  
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. All blower pipes are installed for proper engine loading.  
2-2 Presetting idle adjust screw, L mixture needle and H mixture needle  
1. Turn L mixture needle clockwise until lean stop  
to cut easily.  
2. Using a sharp knife, give triangle cut between  
the stopper wings. Also cut the H limiter cap.  
NOTE : Be careful when cutting caps, otherwise  
injury may result.  
3. Pull the caps off with pliers.  
NOTE : Do not rock back and forth when removing,  
otherwise the needle may be damaged.  
4. Turn H and L mixture needles clockwise until  
lightly seated.  
NOTE : Do not over tighten needles, otherwise  
needles tip and seat damage may occur.  
5. Turn L mixture needle anticlockwise 1 3/4 turns  
(PB-2100), 1 1/2turns (PB-2155, PB-2200SI). Turn  
H mixture needle anticlockwise 1 1/2 turns.  
6. Turn idle adjust screw anticlockwise and set the  
screw until the tip to just contact throttle plate. Then  
turn it clockwise 1 1/2 turns.  
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PB-2100  
PB-2155  
PB-2200SI  
8
SERVICE INFORMATION  
2-3 Adjusting carburettor  
1. Start engine and warm it up well for about 3 - 5  
minutes with cycle of 50 seconds at WOT (Wide  
Open Throttle) and 10 seconds at idling.  
2. Adjust H mixture needle to obtain maximum  
engine speed at WOT. And then turn H mixture  
needle clockwise until the engine speed starts to  
drop.  
3. When the engine speed starts to drop, turn H  
mixture needle anticlockwise to obtain maximum  
engine speed again. And then turn H mixture needle  
anticlockwise further to reduce engine speed 20 to  
30 r/min (PB-2100), 10 to 20 r/min (PB-2155,  
PB-2200SI) from maximum engine speed.  
4. Adjust the L mixture needle to obtain maximum  
idle speed.  
5. Set idle speed in the range of 2,950 to 3,050 r/min  
by turning idle adjust screw.  
6. Turn L mixture needle anticlockwise to reduce  
engine idle speed 200 to 300 r/min and set engine  
idle speed in the rage of 2,650 to 2,850 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.  
7. After adjusting carburettor, install White limiter cap  
on L mixture needle and Red limiter cap on H mixture  
needle as shown.  
NOTE : Before installing limiter caps, warm caps  
in 90 °C hot water for smooth installation. Make it  
sure to use pliers or appropriate instrument to take  
warmed up cap out from the water.  
8. Tap respective limiter caps to the bottoms as  
shown.  
9. Start engine again and make it sure engine runs  
in the range of 2,400 to 3,200 r/min at idling and the  
range of 6,800 to 7,700 r/min at WOT. Also make it  
sure suitable acceleration.  
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