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Subaru Robin Power Products
EH12-2, EH17-2, EH25-2 manual N . m kgfam, 0 EH17D, for B tvDe, 3000
Models:
EH12-2, EH17-2, EH25-2
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78 pages
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Troubleshooting
Specification
Install
Wiring Diagram
Maintenance
Disassembly And Reassembly
Procedures
Clean fuelfilter and fuel tank
Imaximum Horsepowernet
Service Data
Page 9
Image 9
0
EH17D,
6
for B tvDe
N . m
kgfam
3000
-
4000
(1
000)
(1
500)
(2000)
REVOLUTION
r.p.m.
- 6 -
Page 8
Page 10
Page 9
Image 9
Page 8
Page 10
Contents
Page
Section
CONTENTS
Title
Page
Page
Model
I.SPECIFICATIONS
EH12-2
EH12-2B
EH17-2
Model
EH17-2B
EH17-2BS
EH25-2
Model
EH25-2
E H 2 5 - 2 6 s
2-1 MAXIMUMOUTPUT
2-2 CONTINUOUS RATED OUTPUT
2-3 MAXIMUM TORQUE
8 2-4 PERFORMANCECURVES 0 EHlPD, B for B type HP kW
+3l2
3000
4000
0 EH17D
N . m kgfam
for B tvDe
3000
HP kW
3000
IMAXIMUM HORSEPOWERNET
EH25D, B N . m kgf-m
4. GENERAL DESCRIPTIONOF ENGINE COMPONENTS
3. FEATURES
The crankshaft is forged carbon steel, and the crank
The intake valve is located on flywheelside of the cylinder head
against load variations
Theenginesareequippedwithahorizontaldraft
AUTOMATIC DECOMPRESSOR SYSTEM
4-16 DECOMPRESSION SYSTEM
FUEL TANK
4-17 SECTIONAL VIEW OF ENGINE
FLYWHEEL
MAIN BEARING COVER
PUSH ROD
ROCKER ARM
5. DISASSEMBLY AND REASSEMBLY
Procedures
5-3 DISASSEMBLYPROCEDURES
Part to remove
Remarks
Step Part to remove
Procedures
Wipe off spilt fuel
socket wrench
BLOWER HOUSING
Procedures
4pcs
Remarks I Tool
1pc. EH25-2
Procedures
starter
Remarks
2pcs
Step Partto remove
Procedures
10 Governor lever, Governor rod and Governor spring
speed control lever
Procedures
I Remarks
Remove starterpulley from flywheel
M6 X 25mm Screw
Procedures
Remarks
step
M8 BOLT and WASHER 8 pcs. EH25-2
cover
Procedures
Page
Step Partto removeProceduresRemarksToo
oil seal
CRANKSHAIT Dtype
Intake valve
1Clean parts throughly before reassembly
VALVE RECESS
EH12-2
M 6 X 34 mm flangebolt2pcs
M7 X 37 mm flange bolt
2pcs. EH17-2
Page
SPACER SHIMS
Place spacers chosen at procedure1 on crankshaft and camshaft
ft4b
kgcm
EH17-2,25-2NGK B6HS
Spark plug
43-47 ft*lb
59-63 N-m
54-15 CARBURETOR
54-16 GOVERNOR SYSTEM
Page
Install the head cover to the cylinder head
6. IGNITION SYSTEM
7 cn
Stop switch
6-3 WIRING DIAGRAM
12VOLT BATTERY MtNIMUM AMP.HR
STANDARD
CRESCENT EXHAUST
7. AUTOMATIC DECOMPRESSION SYSTEM
8. CARBURETOR
21 -@
B 1Remove the boltl2and take out float chamber bodyl3
9-1 RECOIL STARTER
9. STARTING SYSTEM
case
do not abruptly put off your
of the spring
onto the notchof the reel and rewind the spring into the housing
IO. TROUBLESHOOTING
Check the followings for lackof sparks
1Poor quality gasoline
11. INSTALLATION
STDLimit
12. SERVICE DATA
Lmit
EH12-2
EH17-2 STD Lmit
CYLINDER
PISTON
Lmit
r EH25-2
Ditto
STD Limit STD Limit
Uni rnm in
TEH17-2
0 Ring groovesideclearance
1 EH25-2
STD Limit
0.0591
0.004
ZONNECTING ROD
EH12-2 STDLimit
CRANKSHAR
0.010
Limit
EH17-2
CRANKSHAFT
0.0047
EH25-2
lTEM
CRANKSHAFT
Unit mm in
EH12-2 / EH17-2
STDLimit
VALVE
cold
EH25-2
Limit
ZAMSHAFT
VALVE
0.3134
STDLimit
8.000-8.015 0.3150
0.001 0
EH12-2117-2
EH25-2
STDlimit
STDLimit
DESCRIPTION
12-2TORQUESPECIFICATIONS EH12-2/ 17-2 type
TIGHTENING TORQUE
EH25-2 type
Comparison between oil viscosity and temparature Single grade
12-3 OIL GRADE CHART
Specified Lubrican
Multi- grade
I 1 Change crankcaseoil
13. MAINTENANCE AND STORAGE
1 Clean fuelfilter and fuel tank
Page
SU6ARU
~bin America, Inc
940 LivelyBlvd. l WoodDale,IL 60191 l
e-mail sale.s@robinamerica.com