EX13 17 21 Parts Rev 07 05 EX21 Manual
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PARTS
MANUAL
EX13, EX17, EX21
ENGINE
Models
PUB-EP1676
Rev. 07/05

EX13, EX17, EX21 - 2 - 07-05
© Copyright 2005 Robin America, Inc.
940 Lively Blvd. • Wood Dale, IL 60191 • Phone: 630-350-8200 • Fax: 630-350-8212
e-mail: sales@robinamerica.com • www.robinamerica.com

EX13, EX17, EX21 - 3 - 07-05
HOW TO USE THIS MANUAL
Robin engines are identifi ed by MODEL, SPECIFICATION, and CODE NUMBER. For each
model there may be many different versions called specifi cations. Each specifi cation 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 signifi cant difference.
In order the identify the correct service part number, it is important to confi rm the specifi ca-
tion and code numbers for your engine. The specifi cation 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:
X X X X
SPEC NO. (11 digits) CODE NO. (4 digits)
PRODUCT NO. (15 digits)
E X 1 3 0

EX13, EX17, EX21 - 4 - 07-05
MANUAL LAYOUT
1. SECTION NAME Parts are broadly classifi ed 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 identifi es 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 specifi cation,
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.
1
23
4
16792
8
3
5
4

EX13, EX17, EX21 - 5 - 07-05
GROUP INDEX
Group Name Page
CRANKCASE GROUP ............................................................................... 6
CRANKSHAFT GROUP ............................................................................. 8
INTAKE and EXHAUST GROUP .............................................................. 10
GOVERNOR GROUP .............................................................................. 18
COOLING and STARTING GROUP ......................................................... 22
FUEL, LUBRICANT GROUP .................................................................... 26
CARBURETOR GROUP .......................................................................... 28
ELECTRIC DEVICE GROUP .................................................................. 32
ACCESSORY GROUP ............................................................................. 38
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

EX13, EX17, EX21 - 6 - 07-05
SECTION 1 CRANKCASE GROUP
FIG. 100

10 276-10102-41 CRANKCASE CP 1 EX13, w/ oil sensor 100
276-10101-41 CRANKCASE CP 1 EX13, w/o oil sensor 100
10 277-10102-41 CRANKCASE CP 1 EX17, w/ oil sensor 100
277-10101-41 CRANKCASE CP 1 EX17, w/o oil sensor 100
10 278-10102-41 CRANKCASE CP 1 EX21, w/ oil sensor 100
278-10101-41 CRANKCASE CP 1 EX21, w/o oil sensor 100
20 237-14202-03 VALVE GUIDE 2 100
26 277-16010-01 STEM SEAL 1 100
30 044-02502-00 OIL SEAL 1
100
40 060-02800-21 BALL BEARING 1 100
50 277-15011-03 PIPE KNOCK 2 100
60 010-50802-50 STUD 2 100
70 010-50603-51 STUD 2 100
75 044-00600-20 OIL SEAL 1 100
80 040-11400-30 PLUG 2 100
90 021-11400-20 GASKET 2 100
210 277-11002-21 MAIN BEARING COVER CP 1 SAE 100
277-11001-31 MAIN BEARING COVER CP 1 Metric 100
220 044-02502-10 OIL SEAL 1 100
230 060-02501-40 BALL BEARING 1 100
250 277-45004-H1 GOVERNOR GEAR CP 1 100
260 277-41901-03 GOVERNOR SLEEVE 1 100
270 277-63601-13 OIL GAUGE 1 100
275 277-65001-03 FILLER PLUG 1 100
280 021-31600-20 GASKET 1 100
281 021-31600-20 GASKET 1 100
300 001-04083-50 FLANGE BOLT 6 100
610 276-13001-01 CYLINDER HEAD CP 1 EX13, Old Style ~2099999 100
276-13001-11 CYLINDER HEAD CP 1 EX13, New Style 2100000~ 100
610 277-13001-01 CYLINDER HEAD CP 1 EX17, Old Style ~2099999 100
277-13001-11 CYLINDER HEAD CP 1 EX17, New Style 2100000~ 100
610 278-13001-01 CYLINDER HEAD CP 1 EX21, Old Style ~2099999 100
278-13001-11 CYLINDER HEAD CP 1 EX21, New Style 2100000~ 100
620 276-15001-13 GASKET, head 1 EX13 100
277-15001-23 GASKET, head 1 EX17 and EX21 100
630 011-00802-40 FLANGE BOLT 4 100
631 001-04083-50 FLANGE BOLT 1 100
680 277-15501-01 ROCKER COVER CP 1 100
690 277-16001-03 GASKET, rocker cover 1 100
700 277-15011-03 PIPE KNOCK 2 100
710 011-00600-20 FLANGE BOLT 4 100
960 276-99001-07 GASKET SET 1 EX13 100
277-99001-07 GASKET SET 1 EX17 and EX21 100
EX0-20000-01 GASKET IN A TUBE
EX13, EX17, EX21 - 7 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 1 CRANKCASE GROUP

EX13, EX17, EX21 - 8 - 07-05
SECTION 2 CRANKSHAFT GROUP
FIG. 200

10 276-20901-31 CRANKSHAFT CP 1 3/4” key, 5/16 tap - EX13 200
276-21001-21 CRANKSHAFT CP 1 5/8” Pump - EX13 200
276-21201-21 CRANKSHAFT CP 1 SAE Taper - EX13 200
276-20201-31 CRANKSHAFT CP 1 Metric 18mm 200
276-20301-21 CRANKSHAFT CP 1 Metric Pump 18mm 200
276-20701-21 CRANKSHAFT CP 1 Metric Taper 200
10 277-20901-21 CRANKSHAFT CP 1 3/4” key, 5/16 tap - EX13 200
277-21001-21 CRANKSHAFT CP 1 5/8” Pump - EX13 200
277-21201-21 CRANKSHAFT CP 1 SAE Taper - EX13 200
277-20201-21 CRANKSHAFT CP 1 Metric 20mm 200
277-20301-21 CRANKSHAFT CP 1 Metric Pump 20mm 200
277-20701-21 CRANKSHAFT CP 1 Metric Taper 200
10 278-20901-31 CRANKSHAFT CP 1 3/4” key, 5/16 tap - EX13 200
278-21001-31 CRANKSHAFT CP 1 5/8” Pump - EX13 200
278-21201-31 CRANKSHAFT CP 1 SAE Taper - EX13 200
278-20201-31 CRANKSHAFT CP 1 Metric 20mm 200
278-20301-21 CRANKSHAFT CP 1 Metric Pump 20mm 200
278-20701-21 CRANKSHAFT CP 1 Metric Taper 200
50 018-01400-20 FLANGE NUT 1 200
70 032-30300-10 WOODRUFF KEY 1 200
310 276-22501-10 CONNECTING ROD AY 1 EX13 200
277-22501-10 CONNECTING ROD AY 1 EX17 200
278-22501-10 CONNECTING ROD AY 1 EX21 200
320 277-23001-03 CONNECTING ROD BOLT 2 200
350 276-23301-03 PISTON PIN 1 200
277-23301-03 PISTON PIN 1 200
360 276-23401-03 PISTON 1 STD, EX13 200
276-23403-03 PISTON 1 Oversize 0.25mm, EX13 200
276-23404-03 PISTON 1 Oversize 0.50mm, EX13 200
360 277-23401-03 PISTON 1 Std, EX17,EX21 200
277-23403-03 PISTON 1 Oversize 0.25mm, EX17,21 200
277-23404-03 PISTON 1 Oversize 0.50mm, EX17,21 200
370 276-23511-17 PISTON RING SET 1 STD, EX13 200
276-23512-17 PISTON RING SET 1 Oversize 0.25mm, EX13 200
276-23513-17 PISTON RING SET 1 Oversize 0.50mm, EX13 200
276-23501-17 PISTON RING SET 1 STD, EX13 - 5pc 200
276-23502-17 PISTON RING SET 1 Oversize 0.25mm, EX13 - 5pc 200
276-23503-17 PISTON RING SET 1 Oversize 0.50mm, EX13 - 5pc 200
370 277-23511-17 PISTON RING SET 1 STD, EX11,21 200
277-23512-17 PISTON RING SET 1 Oversize 0.25mm, EX117,21 200
277-23513-17 PISTON RING SET 1 Oversize 0.50mm, EX17,21 200
277-23501-17 PISTON RING SET 1 STD, EX17,21 - 5pc 200
277-23502-17 PISTON RING SET 1 Oversize 0.25mm, EX17,21 - 5pc 200
277-23503-17 PISTON RING SET 1 Oversize 0.50mm, EX17,21 - 5pc 200
380 215-25004-03 CLIP 2 EX13 200
056-51600-10 CLIP 2 EX17,21 200
EX13, EX17, EX21 - 9 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 2 CRANKSHAFT GROUP

EX13, EX17, EX21 - 10 - 07-05
SECTION 3 INTAKE and EXHAUST GROUP - New Style
FIG. 300

EX13, EX17, EX21 - 11 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 3 INTAKE and EXHAUST GROUP - New Style
10 277-31601-11 CAMSHAFT 1 2100000~ 300
25 277-35101-03 PIN, camshaft 1 2100000~ 300
7 024-00600-10 O RING 1 2100000~ 300
34 277-38601-03 PIN, spring 1 2100000~ 300
35 277-36401-03 RELEASE LEVER 1 2100000~ 300
37 277-36501-03 CLIP 1 2100000~ 300
38 277-38702-03 RETURN SPRING 1 2100000~ 300
60 279-33601-03 VALVE SPRING 2 2100000~ 300
70 269-33701-03 RETAINER VALVE SPRING 2 2100000~ 300
80 276-33401-33 INTAKE VALVE 1 EX13 2100000~ 300
277-33401-13 INTAKE VALVE 1 EX17,21 2100000~ 300
90 276-33501-33 EXHAUST VALVE 1 EX13 2100000~ 300
277-33501-13 EXHAUST VALVE 1 EX17,21 2100000~ 300
95 132-10KA0-31 COLLET VALVE 4 2100000~ 300
150 276-35601-11 TIMING CHAIN 1 EX13 2100000~ 300
277-35601-11 TIMING CHAIN 1 EX17 2100000~ 300
278-35601-11 TIMING CHAIN 1 EX21 2100000~ 300
160 277-36911-03 TENTIONER 1 2100000~ 300
163 277-37101-03 SPRING, tentioner 1 2100000~ 300
166 277-36902-03 PIN, tentioner 1 2100000~ 300
170 277-36913-13 CHAIN GUIDE 1 2100000~ 300
200 277-35002-01 PIN, rocker 1 2100000~ 300
210 003-13050-00 CLIP 1 2100000~ 300
220 277-36201-00 ROCKER ARM AY, intake 1 2100000~ 300
225 277-36202-00 ROCKER ARM AY, exhaust 1 2100000~ 300
230 014-90500-20 ADJUST SCREW 2 2100000~ 300
240 017-00500-30 NUT 2 2100000~ 300
290 011-00600-20 FLANGE BOLT 1 2100000~ 300
310 276-30101-11 MUFFLER CP 1 EX13 2100000~ 300
277-30101-11 MUFFLER CP 1 EX17 2100000~ 300
278-30101-11 MUFFLER CP 1 EX21 2100000~ 300
310 276-30111-01 MUFFLER CP 1 EX13 w/spark arrestor 2100000~ 300
277-30111-01 MUFFLER CP 1 EX17,21 w/spark arrestor 2100000~ 300
315 277-37601-01 SPARK ARRESTOR 1 2100000~ 300
317 015-00400-60 TAPPING SCREW 1 2100000~ 300
320 277-34201-11 MUFFLER COVER 1 2100000~ 300
340 277-35201-13 GASKET, muffl er 1 2100000~ 300
350 980-20082-80 FLANGE NUT 2 2100000~ 300
360 015-20600-90 TAPPING BOLT 2 2100000~ 300
361 011-00600-10 FLANGE BOLT 1 2100000~ 300
365 011-00801-50 FLANGE BOLT 1 2100000~ 300
385 277-37203-01 SCREEN CP 1 2100000~ 300
387 018-00400-60 TAPPING SCREW 2 2100000~ 300
440 277-37001-01 DEFLECTOR 1 2100000~ 300
445 015-00400-60 TAPPING SCREW 2 2100000~ 300

EX13, EX17, EX21 - 12 - 07-05
SECTION 3 INTAKE and EXHAUST GROUP - Old Style
FIG. 300

EX13, EX17, EX21 - 13 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 3 INTAKE and EXHAUST GROUP - Old Style
10 277-31601-01 CAMSHAFT 1 ~2099999 300
25 277-35101-03 PIN, camshaft 1
~2099999 300
27 024-00600-10 O RING 1 ~2099999 300
34 277-38601-03 PIN, spring 1 ~2099999 300
35 277-36401-03 RELEASE LEVER 1 ~2099999 300
37 277-36501-03 CLIP 1 ~2099999 300
38 277-38701-03 RETURN SPRING 1 ~2099999 300
60 279-33601-03 VALVE SPRING 2 ~2099999 300
70 269-33701-03 RETAINER VALVE SPRING 2 ~2099999 300
80 276-33501-33 INTAKE VALVE 1 EX13 ~2099999 300
277-33401-13 INTAKE VALVE 1 EX17,EX21 ~2099999 300
90 276-33501-33 EXHAUST VALVE 1 EX13 ~2099999 300
277-33501-13 EXHAUST VALVE 1 EX17,EX21 ~2099999 300
95 132-10KA0-31 COLLET VALVE 4 ~2099999 300
150 276-35601-01 TIMING CHAIN 1 EX13 ~2099999 300
277-35601-01 TIMING CHAIN 1 EX17 ~2099999 300
278-35601-01 TIMING CHAIN 1 EX21 ~2099999 300
160 277-36911-03 TENTIONER 1 ~2099999 300
163 277-37101-03 SPRING, tentioner 1 ~2099999 300
166 277-36902-03 PIN, tentioner 1 ~2099999 300
170 277-36913-13 CHAIN GUIDE 1 ~2099999 300
200 277-35001-23 PIN, rocker 1 ~2099999 300
220 277-36101-00 ROCKER ARM AY, intake 1 ~2099999 300
225 277-36102-00 ROCKER ARM AY, exhaust 1 ~2099999 300
230 014-90500-10 ADJUST SCREW 1 ~2099999 300
231 014-90500-10 ADJUST SCREW 1 ~2099999 300
240 017-00500-20 NUT 1 ~2099999 300
241 017-00500-20 NUT 1 ~2099999 300
290 011-00600-20 FLANGE BOLT 1 ~2099999 300
310 276-30101-11 MUFFLER 1 EX13 ~2099999 300
277-30101-11 MUFFLER 1 EX17 ~2099999 300
278-30101-11 MUFFLER 1 EX21 ~2099999 300
310 276-30111-01 MUFFLER 1 EX13 w/ spark arrester ~2099999 300
277-30111-01 MUFFLER 1 EX17,21 w/spark arrester ~2099999 300
315 277-37601-01 SPARK ARRESTER 1 ~2099999 300
317 015-00400-60 TAPPING SCREW 1 ~2099999 300
320 277-34201-01 MUFFLER COVER 1 ~2099999 300
340 277-35201-03 GASKET, muffl er 1 ~2099999 300
350 980-20082-80 FLANGE NUT 2 ~2099999 300
360 015-20600-90 TAPPING BOLT 2 ~2099999 300
361 011-00600-10 FLANGE BOLT 1 ~2099999 300
365 011-00801-50 FLANGE BOLT 1 ~2099999 300
385 277-37203-01 SCREEN CP 1 ~2099999 300
387 015-00400-60 TAPPING SCREW 2 ~2099999 300
440 277-37001-03 DEFLECTOR 1 ~2099999 300
445 015-00400-60 TAPPING SCREW 2 ~2099999 300

EX13, EX17, EX21 - 14 - 07-05
SECTION 3 INTAKE and EXHAUST GROUP
FIG. 310

EX13, EX17, EX21 - 15 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 3 INTAKE and EXHAUST GROUP
510 277-32611-00 AIR CLEANER 1 FOAM 310A
277-32615-00 AIR CLEANER 1 DUAL ELEMENT, NEW 2100000~ 310B
277-32612-00 AIR CLEANER 1 DUAL ELEMENT, OLD ~2099999 310B
-200 277-32601-08 BASE 1 FOAM 310A
-200 277-32630-08 BASE 1 DUAL ELEMENT, NEW 2100000~ 310B
-200 277-32605-08 BASE 1 DUAL ELEMENT, OLD ~2099999 310B
-210 277-32610-08 PACKING 1 DUAL ELEMENT, OLD ~2099999 310B
-220 277-32604-08 GASKET 1 310
-250 277-32602-08 COVER 1 FOAM 310A
-250 277-32640-08 COVER 1 DUAL ELEMENT, NEW 2100000~ 310B
*-250 277-32602-08 COVER 1 DUAL ELEMENT, OLD ~2099999 inset
-260 277-32609-08 LABEL 1 310
-270 277-32741-08 WING NUT 1 DUAL ELEMENT, NEW 2100000~ 310B
-270 277-32607-08 WING NUT 1 DUAL ELEMENT, OLD ~2099999 310B
-290 277-32740-08 WING NUT 1 DUAL ELEMENT 310
520 277-32603-08 ELEMENT 1 FOAM 310A
277-32611-07 ELEMENT 1 DUAL ELEMENT 310B
570 002-38060-00 FLANGE NUT 2 310
580 011-00600-50 FLANGE BOLT 1 310
850 085-10800-00 RUBBER PIPE 1 310B

EX13, EX17, EX21 - 16 - 07-05
SECTION 3 INTAKE and EXHAUST GROUP
FIG. 320
520
510
-260
-220
-210
-270
-250
-272
-315
-310
-200

EX13, EX17, EX21 - 17 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 3 INTAKE and EXHAUST GROUP
510 277-32613-00 AIR CLEANER 1 Cyclone Pre-Cleaner 320A
277-32620-10 AIR CLEANER 1 Low Profi le 320B
-200 277-32630-08 BASE CP 1 Cyclone Pre-Cleaner 320A
-200 277-32613-08 BACK PLATE 1 Low Profi le 320B
-210 277-32610-08 PACKING 1 Cyclone Pre-Cleaner 320A
-220 277-32604-08 GASKET 1 320
-250 277-32641-08 COVER 1 Cyclone Pre-Cleaner 320A
-250 277-32612-28 COVER 1 Low Profi le 320B
-260 277-32609-08 LABEL 1 Cyclone Pre-Cleaner 320A
-270 277-32741-08 WING NUT 1 Cyclone Pre-Cleaner 320A
-272 277-32607-08 WING NUT 1 Cyclone Pre-Cleaner 320A
-310 277-32770-08 ROTARY BLADE CUP 1 Cyclone Pre-Cleaner 320A
-315 277-32750-08 SCREW 2 Cyclone Pre-Cleaner 320A
520 277-32611-07 ELEMENT 1 Cyclone Pre-Cleaner 320A
520 277-32614-07 ELEMENT 1 320
570 002-38060-00 NUT 2 Cyclone Pre-Cleaner 320A
580 011-00600-50 BOLT 1 Cyclone Pre-Cleaner 320A
850 085-10800-00 RUBBER PIPE 1 Cyclone Pre-Cleaner 320A

EX13, EX17, EX21 - 18 - 07-05
SECTION 4 GOVERNOR GROUP - New Style
FIG. 400

EX13, EX17, EX21 - 19 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 4 GOVERNOR GROUP - New Style
10 277-42301-13 GOVERNOR LEVER 1 2100000~ 400
20 277-42201-33 GOVERNOR SHAFT 1
2100000~ 400
30 279-42701-01 GOVERNOR ROD 1 EX13 2100000~ 400
30 277-42701-01 GOVERNOR ROD 1 EX17, EX21 2100000~ 400
40 277-42801-13 ROD SPRING 1 2100000~ 400
50 003-13050-00 CLIP 1 2100000~ 400
60 018-60600-20 BOLT and WASHER AY 1 2100000~ 400
70 279-42502-23 NUT 1 2100000~ 400
80 277-43303-13 GOVERNOR SPRING 1 2100000~ 400
310 277-43501-03 SPEED CONTROL LEVER 1 2100000~ 400
340 020-00601-70 STOP PLATE 1 2100000~ 400
350 021-70600-70 WASHER 1 2100000~ 400
355 004-31062-50 FRICTION WASHER 1 2100000~ 400
360 237-45004-23 SCREW 1 2100000~ 400
365 277-43902-03 SPRING 1 2100000~ 400
395 013-10500-30 CLAMP 1 2100000~ 400
396 277-46002-01 SCREW and WASHER AY 1 2100000~ 400
435 004-31040-80 SPEED CONTROL BRACKET 1 2100000~ 400
440 002-35060-00 SCREW 1 2100000~ 400
450 267-45101-03 SELF LOCK NUT 1 2100000~ 400
480 011-00600-20 RETURN SPRING 1 2100000~ 400
485 277-43701-01 FLANGE BOLT 2 2100000~ 400
486 277-46003-00 LINK ROD 1 2100000~ 400
* SPEED CONTROL AY 1 2100000~ 400

EX13, EX17, EX21 - 20 - 07-05
SECTION 4 GOVERNOR GROUP - Old Style
FIG. 400

EX13, EX17, EX21 - 21 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 4 GOVERNOR GROUP - Old Style
10 277-42301-13 GOVERNOR LEVER 1 ~2099999 400
20 277-42201-33 GOVERNOR SHAFT 1 ~2099999 400
30 279-42701-01 GOVERNOR ROD 1 EX13 ~2099999 400
30 277-42701-01 GOVERNOR ROD 1 EX17, EX21 ~2099999 400
40 277-42801-13 ROD SPRING 1 ~2099999 400
50 003-13050-00 CLIP 1 ~2099999 400
60 001-14062-50 BOLT and WASHER AY 1 ~2099999 400
70 018-60600-20 NUT 1 ~2099999 400
80 279-42502-23 GOVERNOR SPRING 1 ~2099999 400
310 277-43302-01 SPEED CONTROL LEVER 1 ~2099999 400
340 277-43501-03 STOP PLATE 1 ~2099999 400
350 020-00601-70 WASHER 1 ~2099999 400
355 021-70600-70 FRICTION WASHER 1 ~2099999 400
360 014-00601-80 SCREW 1 ~2099999 400
365 237-45004-23 SPRING 1 ~2099999 400
370 002-17060-00 NUT 1 ~2099999 400
395 277-43901-03 CLAMP 1 ~2099999 400
396 004-36051-60 SCREW and WASHER AY 1 ~2099999 400
435 277-46001-01 SPEED CONTROL BRACKET 1 ~2099999 400
440 004-31040-80 SCREW 1 ~2099999 400
450 002-35060-00 SELF LOCK NUT 1 ~2099999 400
480 277-45101-03 RETURN SPRING 1 ~2099999 400
485 011-00600-20 FLANGE BOLT 2 ~2099999 400
* 277-45001-20 SPEED CONTROL AY 1 ~2099999 400

EX13, EX17, EX21 - 22 - 07-05
SECTION 5 COOLING and STARTING GROUP
FIG. 500

EX13, EX17, EX21 - 23 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 5 COOLING and STARTING GROUP
10 276-51202-01 BLOWER HOUSING 1 EX13, Black 500
276-51201-01 BLOWER HOUSING 1 EX13, Yellow 500
10 277-51202-01 BLOWER HOUSING 1 EX17 Recoil, Black 500
277-51201-01 BLOWER HOUSING 1 EX17 Recoil, Yellow 500
277-51252-01 BLOWER HOUSING 1 EX17 Electric, Black 500
277-51251-01 BLOWER HOUSING 1 EX17 Electric, Yellow 500
10 278-51202-01 BLOWER HOUSING 1 EX21 Recoil, Black 500
278-51201-01 BLOWER HOUSING 1 EX21 Recoil, Yellow 500
278-51252-01 BLOWER HOUSING 1 EX21 Electric, Black 500
278-51251-01 BLOWER HOUSING 1 EX21 Electric, Yellow 500
20 073-20051-40 LABEL, trademark 1 500
40 011-00600-30 FLANGE BOLT 4 500
60 277-52711-11 BAFFLE 1, case 1 500
61 277-52702-03 BAFFLE 2, head 1 500
62 278-52701-03 BAFFLE 3 1 EX21 500
80 001-04061-60 FLANGE BOLT 1 500
81 011-00600-20 FLANGE BOLT 1 500
82 015-20500-10 TAPPING SCREW 2 500
210 268-50201-30 RECOIL STARTER AY 1 EX13 500
269-50201-30 RECOIL STARTER AY 1 EX17 500
278-50201-20 RECOIL STARTER AY 1 EX21 500
220 011-00600-10 FLANGE BOLT 4 500
440 278-54101-03 COOLING BLOWER 1 500

EX13, EX17, EX21 - 24 - 07-05
SECTION 5 COOLING and STARTING GROUP
FIG. 510

EX13, EX17, EX21 - 25 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 5 COOLING and STARTING GROUP
210 268-50201-30 RECOIL STARTER AY 1 EX13 510
269-50201-30 RECOIL STARTER AY 1 EX17 510
278-50201-20 RECOIL STARTER AY 1 EX21 510
-1 270-50115-08 SPIRAL SPRING 1 510
-2 269-50120-08 REEL 1 510
-3 269-50110-08 STARTER ROPE 1 510
-4 261-50100-08 STARTER KNOB 1 510
-5 270-50125-08 RATCHET 2 510
-6 227-50131-08 FRICTION SPRING 1 510
-11 268-50145-18 STARTER PULLEY 1 EX13 510
269-50145-18 STARTER PULLEY 1 EX17 510
278-50145-08 STARTER PULLEY 1 EX21 510
-35 270-50261-08 RATCHET GUIDE 1 510
-49 227-50152-08 SET SCREW 1 510

EX13, EX17, EX21 - 26 - 07-05
SECTION 6 FUEL, LUBRICATION GROUP
FIG. 600

EX13, EX17, EX21 - 27 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 6 FUEL, LUBRICATION GROUP
10 276-60102-01 FUEL TANK 1 EX13, Black 600
276-60101-11 FUEL TANK 1 EX13, Yellow 600
10 277-60102-01 FUEL TANK 1 EX17,21, Black 600
277-60101-11 FUEL TANK 1 EX17,21, Yellow 600
20 073-20051-81 LABEL, warning 1 600
23 276-95101-03 LABEL, model 1 EX13 600
277-95101-03 LABEL, model 1 EX17 600
278-95101-03 LABEL, model 1 EX21 600
30 043-04300-60 FUEL TANK CAP 1 600
40 064-13600-10 FUEL FILTER 1 600
48 050-51200-20 UNION 1 600
60 002-38060-00 FLANGE NUT 2 600
63 011-00601-30 FLANGE BOLT 1 600
80 085-10600-00 RUBBER PIPE 1 600
90 056-11000-30 HOSE CLAMP 2 600
224 277-43801-01 CHOKE LEVER 1 600
225 REMOTE CHOKE CONTROL 1 600
226 SPRING 1 600
227 277-32604-08 GASKET 1 600
395 277-43902-03 CLAMP 1 600
396 013-10500-30 SCREW and WASHER 1 600
440 004-31040-80 SCREW 1 600
540 277-32902-H3 INSULATOR 1 New Style 600
550 277-35902-H3 GASKET 1, insulator 1 New Style 600
560 277-35903-H3 GASKET 2, insulator 1 New Style 600
*540 277-32901-13 INSULATOR 1 Old Style 600
*550 277-35901-13 GASKET, insulator 1 Old Style, 1 piece 600

EX13, EX17, EX21 - 28 - 07-05
SECTION 6 FUEL, LUBRICATION GROUP
FIG. 610
-304

EX13, EX17, EX21 - 29 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 6 FUEL, LUBRICATION GROUP
210 276-62301-10 CARBURETOR 1 EX13, Foam 610
276-62302-10 CARBURETOR 1 EX13, Dual Element 610
276-62304-20 CARBURETOR 1 EX13, Low Profi le 610
210 277-62301-10 CARBURETOR 1 EX17, Foam 610
277-62302-10 CARBURETOR 1 EX17, Dual Element 610
277-62304-20 CARBURETOR 1 EX17, Low Profi le 610
277-62303-00 CARBURETOR 1 EX17, Cyclone Pre Cleaner 610
210 278-62301-10 CARBURETOR 1 EX21, Foam 610
278-62302-10 CARBURETOR 1 EX21, Dual Element 610
278-62304-20 CARBURETOR 1 EX21, Low Profi le 610
-1 106-62538-08 THROTTLE VALVE 1 EX13 610
277-62535-08 THROTTLE VALVE 1 EX17, EX21 610
-2 209-62351-08 SCREW 1
610
-3 277-62525-08 CHOKE VALVE 1 Foam, Dual Element 610
277-62527-08 CHOKE VALVE 1 Low Profi le, Cyclone (EX17) 610
-5 246-62420-08 PILOT JET 1 EX13, EX17 610
278-62420-08 PILOT JET 1 EX21 610
-8 277-62520-08 CHOKE LEVER 1 610
277-62560-08 CHOKE LEVER 1 Low Profi le 610
-11 276-62530-08 THROTTLE SHAFT 1 610
276-62531-08 THROTTLE SHAFT 1 610
-12 277-62451-08 BOLT 1 610
-14 277-62500-08 NEEDLE 1 610
-15 277-62515-08 PIN 1 610
-16 277-62506-08 FLOAT BODY 1 610
-17 214-62450-08 PACKING 1 610
-18 214-62540-08 CHAMBER PACKING 1 610
-19 226-62506-08 FLOAT 1 610
-20 276-62440-08 MAIN NOZZLE 1 EX13 610
277-62440-08 MAIN NOZZLE 1 EX17 610
278-62440-08 MAIN NOZZLE 1 EX21 610
-22 277-62404-08 MAIN JET 1 EX13, Foam, Low Profi le 610
252-62405-08 MAIN JET 1 EX13, Dual Element 610
-22 277-62402-08 MAIN JET 1 EX17, Foam 610
226-62412-08 MAIN JET 1 EX17, Dual Element 610
277-62412-08 MAIN JET 1 EX17, Low Profi le, Cyclone 610
-22 278-62403-08 MAIN JET 1 EX21, Foam, Low Profi le 610
277-62405-08 MAIN JET 1 EX21, Dual Element 610
-24 226-62701-08 CLIP 1 610
-28 277-62360-08 BOLT 1 610
-32 246-62390-08 THROTTLE SEAL 1 Dual Element, Low Profi le 610
-44 207-62410-08 AIR JET 1 EX13 610
248-62410-08 AIR JET 1 EX17 610
106-62411-08 AIR JET 1 EX21 610
-45 106-62410-08 AIR JET, PILOT 1 610
-62 236-62680-08 CHOKE SEAL 1 Dual Element, Low Profi le 610

EX13, EX17, EX21 - 30 - 07-05
SECTION 6 FUEL, LUBRICATION GROUP
FIG. 610
-304

EX13, EX17, EX21 - 31 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 6 FUEL, LUBRICATION GROUP
-104 236-62541-08 PACKING 1 610
-302 064-20064-10 PACKING 1 610
-303 064-20078-10 CUP 1 610
-304 279-62103-00 FUEL STRAINER AY 1 610
* 209-62351-08 THROTTLE SCREW 1 Low Profi le 610
* 277-62570-08 RING, UPPER 1 Low Profi le 610
* 277-62571-08 RING, LOWER 1 Low Profi le 610
* 237-62451-08 SCREW, CHOKE 1 Low Profi le 610

EX13, EX17, EX21 - 32 - 07-05
SECTION 7 ELECTRIC DEVICE GROUP
FIG. 700
14
13
12
37
36
38
For 200 Watt
Charging EX21

EX13, EX17, EX21 - 33 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 7 ELECTRIC DEVICE GROUP
10 276-79230-11 FLYWHEEL 1 EX13, STD 700
276-79241-01 FLYWHEEL 1 EX13, 15W, 40W 700
10 277-79230-11 FLYWHEEL 1 EX17, STD 700
277-79241-01 FLYWHEEL 1 EX17, 15W, 40 W Charging 700
277-79242-01 FLYWHEEL 1 EX17, 200W Charging 700
277-79251-01 FLYWHEEL 1 EX17, 15W, 40W w/o ring gear 700
277-79252-01 FLYWHEEL 1 EX17, 200W w/o ring gear 700
10 278-79240-21 FLYWHEEL 1 EX21, STD 700
278-79241-01 FLYWHEEL 1 EX21, 15W, 40 W Charging 700
278-79243-01 FLYWHEEL 1 EX21, 200W Charging 700
278-79251-01 FLYWHEEL 1 EX21, 15W, 40W w/o ring gear 700
278-79252-01 FLYWHEEL 1 EX21, 200W w/o ring gear 700
11 277-79431-01 IGNITION COIL 1
700
12 277-79301-01 CHARGE COIL 1 STD 15W 700
277-79302-01 CHARGE COIL 1 40W 700
277-79303-01 CHARGE COIL 1 EX17,21, 200W 700
13 277-71901-01 REGULATOR 1 EX17,21, 200W 700
14 147-71401-01 RECTIFIER DIODE 1 15W 700
246-71903-01 RECTIFIER DIODE 1 EX17,21, 40W 700
23 277-79501-03 SPACER 1 EX17,21, 15W, 40W Charging 700
30 011-14062-50 BOLT and WASHER AY 2 700
35 001-13063-50 BOLT 2 15W Charging L=35mm 700
001-13064-00 BOLT 2 40W Charging L=40mm 700
36 004-35062-50 SCREW and WASHER AY 2 200W Charging L=25mm 700
37 277-79001-03 REAMER SCREW 2 200W Charging 700
38 003-20060-00 SPRING WASHER 2 200W Charging 700
50 277-73102-H1 WIRE 2 CP 1 EX13,17,21 w/ Oil Sensor 700
279-73105-H1 WIRE 5 CP 1 Electric Start 700
60 066-00003-61 SWITCH AY 1 Old Style 700
70 015-00400-90 TAPPING SCREW 2 700
80 024-10701-10 GROMMET 1 700
100 065-01401-50 SPARK PLUG 1 700
110 065-50002-70 SPARK PLUG CAP 1 700
700 277-76301-11 OIL SENSOR CP 1 700
705 KU3-11043-11 CONTROL AY, oil sensor 1 New Style 700
KU3-11043-01 CONTROL AY, oil sensor 1 Old Style 700
740 001-14061-60 BOLT and WASHER AY 2 700
741 015-00400-90 TAPPING SCREW 2 700
015-20500-10 TAPPING SCREW 1 700
770 214-79006-01 CLAMP 1 700
775 011-00600-20 FLANGE BOLT 1 700

EX13, EX17, EX21 - 34 - 07-05
SECTION 7 ELECTRIC DEVICE GROUP
FIG. 710

EX13, EX17, EX21 - 35 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 7 ELECTRIC DEVICE GROUP
120 277-70502-00 STARTER MOTOR 1 710
-1 277-70550-08 YOKE AY 1
710
-2 277-70551-08 ARMATURE AY 1 Incl. Collar 710
-3 277-70520-08 CLUTCH AY, pinion 1 710
-4 277-70501-08 HOUSING AY, front cover 1 710
-5 277-70560-08 SPRING 1 710
-6 227-70561-08 NUT, pinion stop 1 710
-7 227-70562-08 SNAP RING 1 710
-8 277-70502-08 FRAME AY, rear cover 1 710
-9 277-70570-08 THROUGH BOLT 2 710
-10 277-70571-08 O RING 2 710
-11 227-70572-08 O RING 2 710
-12 227-70573-08 WASHER PLATE 1 710
-14 277-70572-08 WIRE, sub ay 1 710
-15 227-70577-08 BOLT and WASHER 1 710
-16 277-70573-08 MAGNETIC SWITCH 1 710
-17 277-70574-08 SCREW and WASHER 2 710
-18 254-70576-08 NUT 2 710

EX13, EX17, EX21 - 36 - 07-05
SECTION 7 ELECTRIC DEVICE GROUP
FIG. 720

EX13, EX17, EX21 - 37 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 7 ELECTRIC DEVICE GROUP
200 066-00003-30 KEY SWITCH 1 720
-1 066-00099-80 KEY SWITCH 1
720
230 277-75101-00 CONTROL BOX CP 1 720
-3 277-71401-01 DIODE RECTIFIER CP 1 720
-4 073-20044-60 LABEL, starter switch 1 720
-5 277-73103-01 WIRE 3 CP 1 720
-6 277-73104-01 WIRE 4 CP 1 720
-7 277-73105-01 WIRE 5 CP 1 720
-8 056-30000-60 WIRE BAND 1 720
-9 004-35061-00 SCREW and WASHER AY 1 720

EX13, EX17, EX21 - 38 - 07-05
SECTION 9 ACCESSORY GROUP
FIG. 900

EX13, EX17, EX21 - 39 - 07-05
REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.
SECTION 9 ACCESSORY GROUP
10 227-90301-H0 ACCESSORY TOOL KIT 1 900
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