30-21C-00
SHR-150SI
1
3
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 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 tool.................................................6
Reference No. 30-21C-00
ISSUED: 200304
INDEX
2
1 SERVICE INFORMATION
1-1 Specifications
Dimensions Length* mm(in) 310 (12.2)
Width* mm(in) 375 (14.8)
Height* mm(in) 550 (21.7)
Dry weight* kg(lb) 5.6 (12.3)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Counterclockwise as viewed from the output end
Displacement cm3(in3) 21.2 (1.29)
Bore mm(in) 32.2 (1.268)
Stroke mm(in) 26.0 (1.024)
Compression ratio 6.6
Carburetor Type Diaphragm, horizontal-draft, with primer
Model RB-K69
Ignition Type CDI (Capacitor discharge ignition) system
Spark plug BPMR7A
Starter Type i-start
Rope diameter x length mm(in) 3.0 x 1300 (0.12 x 51.2)
Fuel Type Premixed two-stroke fuel
Recommended 2-stroke engine oil ISO-L-EGD (ISO/CD13738)
Tank capacity L (U.S.fl.oz.) 0.5 (16.9)
Chemical tank capacity L (U.S.gal) 15.0 (4.0)
Clutch Type Centrifugal, 2-shoe slide
Pump Type Rotary (Regenerative)
Impeller diameter mm(in) 58.0 (2.28)
Pressure kgf/cm2(psi) 8 - 10 (114 - 142)
Discharge L/min(U.S.gal/min) 8.0 (2.11)
Suction hose inner dia. mm(in) 10.0 (0.39)
Return hose inner dia. mm(in) 7.0 (0.28)
Spraying hose inner dia. mm(in) 7.5 (0.30)
Spraying hose length m(ft) 1.2 (3.94)
SERVICE INFORMATION
SHR-150SI
* Without spraying hose and nozzle.
SHR-150SI
1-2 Technical data
Engine
Idling speed r/min 2700 - 3300
Operating speed r/min 6500 - 7000
Engine speed at beginning of clutch engagement r/min 3400 - 3700
Compression pressure Mpa (kgf/cm2) (psi) 0.8 (8.0) 110
Ignition system
Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1500 r/ min kV 20.0
Secondary coil resistance kΩ 1.4 - 1.9
Pole shoe air gaps mm(in) 0.3 - 0.4
Ignition timing °BTDC
Carburetor
Venturi size mm(in) 9.0 (0.354)
Throttle bore mm(in) 9.0 (0.354)
Main jet #38
Test Pressure, minimum MPa (kgf/cm2) (psi) 0.05 (0.5) (7.0)
Metering lever height mm(in) 0.1 - 0.25 (0.004 - 0.01) lower than diaphragm seat
SERVICE INFORMATION
at 1000 rpm 17.0
at 7000 rpm 15.0
3
BTDC: Before top dead center.
4
1-3 Torque limits
Descriptions Size kgf•cm N•m in•lbf
Starter Starter pawl assembly M 6 80 - 100 8 - 10 70 - 90
system Starter case M 5** 25 - 45 2.5 - 4.5 22 - 40
Ignition Flywheel M 6* 80 - 100 8 - 10 70 - 90
system Ignition coil M 4 35 - 50 3.5 - 5.0 30 - 45
Spark plug M 14 150 - 170 15 - 17 130 - 150
Fuel Carburetor M 5 25 - 45 2.5 - 4.5 22 - 40
system Intake insulator M 5 70 - 110 7 - 11 60 - 95
Engine Crankcase M 5* 70 - 110 7 - 11 60 - 95
Cylinder M 5 70 - 110 7 - 11 60 - 95
Engine mount M 6 45 - 75 4.5 - 7.5 40 - 65
Cylinder cover M 5* 20 - 30 2 - 3 17 - 25
Muffler M6 70-110 7-11 60-95
Muffler cover M 5* 25 - 45 2.5 - 4.5 22 - 40
Pump Pump cover M 5 25 - 45 2.5 - 4.5 22 - 40
Pump mount M 5 25 - 45 2.5 - 4.5 22 - 40
Other Rubber cushion M 6* 20 - 40 2 - 4 17 - 35
Nut (Chem. tank bottom) M 6 45 - 75 4.5 - 7.5 40 - 65
Ignition switch M 10 15 - 25 1.5 - 2.5 13 - 22
Regular bolt, nut, M 3 6 - 10 0.6 - 1.0 5 - 9
and screw M 4 15 - 25 1.5 - 2.5 13 - 22
*
Apply thread locking sealant. (See below)
** Tapping screw
SERVICE INFORMATION
M 5 25 - 45 2.5 - 4.5 22 - 40
M 6 45 - 75 4.5 - 7.5 40 - 65
M 8 110 - 150 11 - 15 115 - 130
SHR-150SI
1-4 Special repairing materials
Material Location Remarks
Grease Rewind spring
Starter center post Lithium based grease or ECHO LUBE
Oil seal inner lips
Thread locking sealant Flywheel
Crankcase
Cylinder cover Loctite #222, ThreeBond #1342 or equivalent
Muffler cover
Rubber cushion
TM
SHR-150SI
0
5
10
1
2
3
4
5
6
7
8
9
10
11
1
23
4
5
6
7
8
9
10
11
0
5
10
0
0
1
2
0
5
10
SERVICE INFORMATION
1-5 Service limits
ABCD
5
5K262
5K222A
5K223A 5K224A
EFGH
5K225A
5K016
KL
5K042
M
5K263
N
5K171
5K202
5K143
5K203
Description mm (in)
A Cylinder bore When plating is worn and aluminum can be seen
B Piston outer diameter Min. 32.11 (1.264)
C Piston pin bore Max. 7.070 (0.278)
D Piston ring groove Max. 1.6 (0.063)
E Piston ring side clearance Max. 0.1 (0.004)
F Piston pin outer diameter Min. 6.98 (0.275)
G Piston ring width Min. 1.45 (0.057)
H Piston ring end gap Max. 0.5 (0.02)
K Crankshaft runout Max. 0.05 (0.002)
L Clutch drum bore Max. 55.5 (2.19)
M Impeller diameter Max. 56.0 (2.21)
N Impeller thickness Max. 3.4 (0.134)
6
1-6 Special tools
SERVICE INFORMATION
SHR-150SI
1 52
689
1.65
1.3
0.4
1.5
7
1110 12 13
1514 16 17
a = 3 mm
3:
4: a = 4 mm
a
Key Part Number Description Used for:
1 Tachometer Measuring engine speed to adjust carburetor
2 897501-03938 Puller Removing magneto rotor
3 895612-79920 L-hex. wrench (3 mm) Removing and installing hex. socket bolt (M4)
4 895610-79920 L-hex. wrench (4 mm) Removing and installing hex. socket bolt (M5)
5 897559-02831 T-hex. wrench (4 mm) Removing and installing hex. socket bolt (M5)
6 897558-10230 T-socket wrench(10mm)Removing and installing hex. head bolt/nut (M6)
7 897701-06030 Bearing wedge Removing ball bearing on crankshaft
8 897701-14732 Bearing tool Removing and installing ball bearings on crankcase
9 897702-30131 Piston pin tool Removing and installing piston pin (Use 8mm dia.adapter)
10 897563-19830 Metering lever gauge Measuring metering lever height on carburetor
11 897712-04630 2-pin wrench Removing and installing pawl carrier
12 897714-24330 Oil seal tool Installing crankcase oil seals
13 897741-10510 Mechanical seal tool Removing and installing mechanical seal
14 897719-02830 Piston holder Making piston steady to remove and install piston / rings
15 897800-79931 Spark tester Checking ignition system
16 897803-30130 Pressure tester Testing carburetor and crankcase leakage
17 897835-16131 Pressure connector Testing crankcase and cylinder leakage
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