Robin America EH12-2, EH17-2, EH25-2 User manual

PARTS
MANUAL
EH12-2
ENGINE
Model
PUB-EP5713
Rev. 7/99

© Copyright 1999 Robin America, Inc.
940 Lively Blvd.  Wood Dale, IL 60191  Phone: [phone]  ax: 630-350-8212
e-mail: [email protected] • www.robinamerica.com

EH12-2 - 3 - '99 - 7
HOW TO USE THIS MANUAL
Robin engines are identified by MODEL, SPECIFICATION, and CODE NUMBER. For each
model there may be many different versions called specifications. Each specification will be
unique in some way. The difference may only be the paint color or it may have a different
type of PTO or some other significant difference.
In order the identify the correct service part number, it is important to confirm the specifica-
tion and code numbers for your engine. The specification and code number together are
know as the PRODUCT NUMBER.
All Robin 4 cycle engines have a Product Number label similar to the label illustrated below.
The Product Number Label has a 15 digit alphanumeric string that consists of the
SPECIFICATION (SPEC) number (11 digits) and the CODE number (4 digits). Please
note the illustration below:
PRODUCT NUMBER LABEL LOCATIONS
PRODUCT NUMBER LABEL
X X X X
SPEC NO. (11 digits) CODE NO. (4 digits)
PRODUCT NO. (15 digits)
E H 1 2 2

1. SECTION NAME Parts are broadly classified according to their functions.
Refer to the Group Index (table of contents) for respective section name.
2. FIG. No. The FIG. number indexes the reference and part numbers to the illustration. Figure numbers that
vary only in the tens place (i.e..: 700 and 710) are in a group of the same section (i.e..: Electrical
Device Group).
3. REF. No . The Reference number identifies the part illustration with the corresponding part number in the
part list.
4. SUBASSEMBLY SUBASSEMBLY parts of part assembly are listed below the assembly part. The subassembly
part reference number is indicated by the number led by "-" such as "-1", "-2".
5. PART NUMBER It is the number assigned for sales unit. Use the PART No. when making an order.
6. DESCRIPTION It is designation of the part.
7. QTY. Quantity of each part used for each product.
8. REMARKS This gives a distinctive feature and/or a supplementary comment for the type, the specification,
and the part concerned. It also shows part number(s) interchangeable for the part.
9. FROM-TO This section shows the CODE No. to indicate the history of progress in which improved parts
have been introduced in the product. The FROM-TO CODE No. helps to identify PART No.
being employed in the product concerned. See the examples below:
- The part is used in the product irrespective of CODE No.
2101- The part is used in the products with CODE No. of 2101 and after this number.
- 2100 The part is used in the products with CODE No. of 2100 and before this number.
MANUAL LAYOUT
2101-
-2100
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EH12-2 - 4 - '99 - 7

GROUP INDEX
Group Name Page
CRANKCASE GROUP ............................................................................... 6
CRANKSHAFT GROUP ............................................................................. 8
INTAKE and EXHAUST GROUP.............................................................. 10
GOVERNOR GROUP............................................................................... 12
COOLING and STARTING GROUP......................................................... 14
FUEL GROUP........................................................................................... 16
CARBURETOR......................................................................................... 18
ELECTRIC DEVICE GROUP - RECOIL START...................................... 20
ELECTRIC DEVICE GROUP - ELECTRIC START ................................. 22
ELECTRIC DEVICE GROUP - ELECTRIC STARTER ............................ 24
ELECTRIC DEVICE GROUP - OIL SENSOR.......................................... 26
EH12-2 - 5 - '99 - 7
SYMBOL DESCRIPTION
AY .......................... ASSEMBLY
CP .......................... COMPLETE
EX ..........................EXPORT (from Japan)
FIG......................... FIGURE
FR. ......................... FRONT
" .............................. INCH
INCL.......................INCLUDE
~L ........................... LITER
L= ...........................LENGTH (in. mm)
L.H. (LH) ................LEFT-HAND SIDE
MECH ....................MECHANICAL
NO (NON) .............. NONE
OPT. ....................... OPTIONAL
O.S......................... OVER SIZE
SYMBOL DESCRIPTION
P= .......................... PITCH (in mm)
P.T.O. (PTO) ..........POWER TAKE OFF
REF. .......................REFERENCE
R.H. (RH) ...............RIGHT HAND SIDE
RR. .........................REAR
STD........................STANDARD
SW .........................SWITCH
T=........................... THICKNESS (in mm)
UN .......................... UNIT
U.S. ........................UNDER SIZE
~V .......................... VOLTAGE
~W .........................WATT
W/ .......................... WITH
W/O........................WITHOUT
INDEX OF DESCRIPTION SYMBOLS

SECTION 1 CRANKCASE GROUP
EH12-2 - 6 - '99 - 7
FIG. 100

SECTION 1 CRANKCASE GROUP
EH12-2 - 7 - '99 - 7
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
10 252-10201-11 CRANKCASE CP 1 recoil start type 100
20 237-14202-03 VALVE GUIDE 2 oversize 100
30 044-02500-70 OIL SEAL 1 25 x 38 x 7 044-02500-10 100
40 060-02500-10 BALL BEARING 1 BB-6205C3 100
50 031-00600-20 DOWEL PIN 2 100
60 010-50802-90 STUD 2 100
70 010-50601-31 STUD 1 100
71 001-39066-00 STUD 1 100
80 040-11400-30 PLUG 2 100
90 021-11400-20 GASKET 2 100
210 253-11014-01 MAIN BEARING COVER CP 1 SAE 100
253-11013-01 MAIN BEARING COVER CP 1 Metric 100
220 044-02501-60 OIL SEAL 1 25 x 41.24 x 7 100
230 060-02500-10 BALL BEARING 1 BB-6205C3 100
250 227-45003-01 GOVERNOR GEAR CP 1 100
260 205-41901-03 GOVERNOR SLEEVE 1 100
270 269-63601-03 OIL GAUGE 2 100
269-63601-03 OIL GAUGE 1 w/OIL SENSOR 100
280 021-31600-20 GASKET 2 100
021-31600-20 GASKET 1 w/OIL SENSOR 100
290 253-16002-03 GASKET, BEARING COVER 1 100
300 013-00600-40 BOLT AND WASHER AY 8 100
330 253-17502-03 SHELTER PLATE 1 w/OIL SENSOR 100
340 004-35051-00 SCREW AND WASHER AY 1 w/OIL SENSOR 100
610 268-13001-01 CYLINDER HEAD CP 1 100
620 253-15001-23 GASKET, HEAD 1 100
630 011-00801-00 FLANGE BOLT 4 100
680 269-15503-03 ROCKER COVER 1 100
690 269-16004-03 GASKET, ROCKER COVER 1 100
700 031-00600-20 DOWEL PIN 2 100
710 011-00600-20 FLANGE BOLT 4 100
810 253-14301-11 BREATHER COVER CP 1 100
820 253-14401-11 BREATHER PLATE CP 1 100
830 253-16006-33 GASKET, BREATHER COVER 2 100
840 011-00600-30 FLANGE BOLT 2 100
850 085-10800-00 RUBBER PIPE 1 CYCLONE A/C 8 x 11 x 80 100
246-10802-03 RUBBER PIPE 1 FOAM AIR CLEANER 100
960 252-99001-07 GASKET SET 1 100

SECTION 2 CRANKSHAFT GROUP
EH12-2 - 8 - '99 - 7
FIG. 200

SECTION 2 CRANKSHAFT GROUP
EH12-2 - 9 - '99 - 7
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
10 252-20901-11 CRANKSHAFT CP 1 SAE 3/4" KEYED SHAFT type 200
252-21001-11 CRANKSHAFT CP 1 SAE PUMP SHAFT type 200
252-21201-11 CRANKSHAFT CP 1 SAE TAPER SHAFT type 200
252-20201-11 CRANKSHAFT CP 1 METRIC KEYED SHAFT type 200
252-20301-11 CRANKSHAFT CP 1 METRIC PUMP type 200
252-20701-11 CRANKSHAFT CP 1 METRIC TAPER type 200
40 023-02501-10 SPACER T=0.6 1 select one spacer only 200
023-02501-20 SPACER T=0.8 1 select one spacer only 200
023-02501-30 SPACER T=1.0 1 select one spacer only 200
50 002-18140-00 NUT 1 200
60 003-20140-00 SPRING WASHER 1 200
70 032-30300-10 WOODRUFF KEY 1 200
310 252-22501-10 CONNECTING ROD AY 1 200
320 236-23001-03 CONNECTING ROD BOLT 2 200
350 268-23301-03 PISTON PIN 1 D,DS type 200
360 268-23401-03 PISTON 1 STD. 200
268-23402-03 PISTON 1 oversize 0.25 mm 200
268-23403-03 PISTON 1 oversize 0.50 mm 200
370 252-23501-07 PISTON RING SET 1 STD. 200
252-23502-07 PISTON RING SET 1 oversize 0.25 mm 200
252-23503-07 PISTON RING SET 1 oversize 0.50 mm 200
380 215-25004-03 CLIP 2 200

SECTION 3 INTAKE and EXHAUST GROUP
EH12-2 - 10 - '99 - 7
FIG. 300
FOAM
AIR CLEANER
CYCLONE AIR CLEANER,
TOP INLET TYPE