RYOBI
25cc String Trimmers
Manufacturing Numbers
090333036 and 090333037
Item Numbers
RY25PHEMC and RY25CSEMC
Repair Sheet
TECHTRONIC INDUSTRIES POWER EQUIPMENT
P.O. Box 1288, Anderson, SC 29622 USA
1-800-860-4050 www.ryobitools.com
FIGURE A
ITEM NO. RY25PHEMC
RYOBI 25cc STRING TRIMMERS – ITEM NUMBERS RY25PHEMC AND RY25CSEMC
11
8
9
10
7
4
3
5
6
14
13
12
15
2
16
5
17
18
1
20
19
2
RYOBI 25cc STRING TRIMMERS – ITEM NUMBERS RY25PHEMC AND RY25CSEMC
PARTS LIST (FIGURE A)
KEY PART
NO. NUMBER DESCRIPTION QTY
8
9
10
11
12
4
5
6
7
1
2
3
312630001
940657164
308470060
205044004
678029002
Boom Clamp Assembly ..............................................1
Warning Icon Label .....................................................1
Upper Boom Assembly (Inc. Key Nos. 1-2) ................1
660563002 Screw (M4 x 20 mm, T20 Torx Hd. S.T.) .....................4
310831005 Control Handle Assembly (Inc. Key No. 4) .................1
518695012 Trigger Lock ................................................................1
690140011 Compression Spring ...................................................1
570234002 Rear Handle Grip ........................................................1
T660697001 Screw (M6 x 30 mm, T27 Torx Button Hd.) ................1
660925011 Screw (M4 x 8 mm, T20 Torx Pan Hd. S.T.) ................1
Powerhead Assembly w/Labels .................................1
Hex Nut (M6 x 1) .........................................................1
13
14
307318001
760961002
Throttle Cable and Wire Assembly .............................1
On/Stop Switch ..........................................................1
15 518696020 Trigger .........................................................................1
16
17
18
19
690694002
308991003
660643008
526764002
Trigger Spring .............................................................1
Front Handle Assembly (Inc. Key Nos. 18-20) ............1
Screw (1/4-20 x 40 mm, Cap Hex Hd.) ......................1
Front Handle ...............................................................1
20 518949001 Wing Nut (1/4-20) .......................................................1
NOT SHOWN
991000345 Operator’s Manual (RY25PHEMC, 961494004)
995000050 Operator’s Manual (RY25CSEMC, 961494017)
9-16-19
(Rev:02)
3
RYOBI 25cc STRING TRIMMERS – ITEM NUMBERS RY25PHEMC AND RY25CSEMC
FIGURE B
ITEM NO. RY25PHEMC
33 *27
26
26
28
30
29
31
25
32
23
22 **19
24 1
16
15
14
21
17
20
18
40
13 **37 38
41
42
43
**34
12
**11
9
10
35
36
39
42
44
45
3
7
52
4
6
51
46
2
8
1
53
5
55
46
47
48
49
50
54
4
RYOBI 25cc STRING TRIMMERS – ITEM NUMBERS RY25PHEMC AND RY25CSEMC
PARTS LIST (FIGURE B)
KEY PART
NO. NUMBER DESCRIPTION
20
21
22
23
24
25
26
27
12
13
14
15
16
17
18
19
28
29
30
1
2
3
4
5
6
7
8
9
10
11
QTY
660344001 Screw w/Washer (M5 x 20 mm, T20 Torx Pan Hd.) ................6
940627041 Logo Label (Front) ..................................................................1
940654088 Combustion Warning Label ....................................................1
310304006 Front Housing Assembly (Inc. Key Nos. 2-3) .........................1
660353001 Clutch Shoulder Bolt (M6 x 22.5 mm, Hex Hd.) .....................2
690696001 Curved Washer .......................................................................2
307091001 Clutch Assembly ....................................................................1
690695001 Washer (ID6 x OD15 x 1.2t) ....................................................2
690689001 Flywheel Nut ...........................................................................1
307156001 Flywheel ..................................................................................1
630002032 ** Muffler Gasket ........................................................................1
300748043 Muffler Assembly (Inc. Key Nos. 13-14) .................................1
638268001 Screen ....................................................................................1
660870001 Screw (6-20 x 1/4 in., T20 Torx Pan Hd. S.T.) .........................3
638027002 Heat Shield .............................................................................1
660347001 Screw (M5 x 50 mm, T25 Torx Pan Hd.) .................................2
307192001 Crankcase Assembly ..............................................................1
308004003 Starter Cup .............................................................................1
900709007 ** Gasket ....................................................................................1
290143002 Lead Wire (Red) ......................................................................1
660968004 Screw w/Washer (M4 x 22 mm, T20 Torx Pan Hd. S.T.) .........2
290143001 Lead Wire (Black) ....................................................................1
291337005 Coil Boot Assembly ................................................................1
690969001 Washer (ID4.2 x OD10 x 1t) ....................................................2
590462001 Spacer (Phenolic) ...................................................................2
660342001 Screw (M5 x 22 mm, Soc. Hd.) ..............................................2
870174001 * Spark Plug (Champion RCJ6Y) ..............................................1
642368001 Cylinder ..................................................................................1
205097001 Rear Housing and Starter Assembly
(Inc. Key Nos. 31-32) ..............................................................1
660563002 Screw (M4 x 18 mm, T20 Torx Pan Hd. S.T.) ..........................3
KEY PART
NO. NUMBER DESCRIPTION
50
51
52
53
54
55
42
43
44
45
46
47
48
49
31
32
33
34
35
36
37
38
39
40
41
QTY
941788001 Primer Bulb Location Label ....................................................1
940627042 Logo Label (Rear) ...................................................................1
534331001 Spark Plug Boot .....................................................................1
903279002 ** Insulator Gasket .....................................................................1
528275001 Heat Dam Insulator .................................................................1
T662210002 Screw (M5 x 30 mm, T25 Torx Pan Hd. S.T.) ..........................2
903034001 ** Gasket ....................................................................................1
307160011 Carburetor Assembly (Inc. Key No. 39) ..................................1
563841001 Carburetor O-Ring ..................................................................1
307191001 Airbox Base Assembly (Inc. Key Nos. 41-45) .........................1
591442001 Choke Lever ...........................................................................1
678515015 Compression Limiters ............................................................2
591440001 Air Box Base ...........................................................................1
590946001 Choke Plate ............................................................................1
660345001 Screw (M4 x 12 mm, T20 Torx Pan Hd. S.T.) ..........................1
660454015 Screw (M5 x 44 mm, T20 Torx Pan Hd.) .................................2
560873001 Air Filter ..................................................................................1
940647111 Choke Position Label .............................................................1
308649003 Airbox Cover (Inc. Key Nos. 48 & 50) .....................................1
940686168 Starting Instructions Label .....................................................1
205043001 Fuel Tank and Cap Assembly
(Inc. Key Nos. 52-54) ..............................................................1
310976001 Fuel Filter ................................................................................1
310816018 Fuel Cap Assembly ................................................................1
940864004 Fuel Mixture Label ..................................................................1
660970002 Shoulder Screw (M4 x 14 mm, T25 Torx Truss Hd. S.T.) ........3
Not Shown:
000998930 Spark Arrestor Kit (Inc. Key Nos. 13-14)
120900307 High Altitude Kit (Not Included)
* Standard Hardware Item – May Be Purchased Locally
** Non-Reuseable Parts = Keys 11, 19, 34 and 37
5
RYOBI 25cc STRING TRIMMERS – ITEM NUMBERS RY25PHEMC AND RY25CSEMC
FIGURE C
ITEM NO. RY25CSEMC 12
8
11
13
7
17 14
6
9
10
5
15
4
16
1
KEY PART
NO. NUMBER DESCRIPTION QTY
1 311759013 Trimmer Head Assembly (.095) (Inc. Key Nos. 2-8) ................ 1
2 530366001 Lower Housing ....................................................................... 1
3 530455002 Bump Knob (Green) ................................................................ 1
4 530670001 Spool ...................................................................................... 1
5 529803001 String Guide ............................................................................ 1
6 678749001 Compression Spring ............................................................... 1
7 662569001 Flange Nut (M8) ...................................................................... 1
8 530001004 Upper Housing ....................................................................... 1
9 660647001 Screw (#10-32 x 3/8 in., Hex Washer Hd. S.T.) ...................... 1
10 638001001 Clamp ..................................................................................... 1
11 940726013 Expand-it Label ...................................................................... 1
12 940657165 Warning Icon Label ................................................................. 1
13 518019002 Storage Hanger Cap ............................................................... 1
14 307486002 Curved Shaft Assembly (Inc. Key Nos. 9-13) ......................... 1
15 308744010 Grass Deflector Assembly (Inc. Key No. 16) .......................... 1
16 205012001 Fastener Kit ............................................................................ 1
17 532048001 Crank Handle Assembly ......................................................... 1
6
3
2
