Ryobi 780R User Manual
Issued 4/99
Item Part No. Description
1 182059 Air Cleaner/Muffler Cover Assembly (includes 2 & 41)
2 180350 Air Cleaner Filter
3 180351 Carburetor Mounting Screw Assembly
4 180352 Wavey Washer
5 182061 Choke Lever Assembly (includes 6)
6 182070 Choke Knob and Screw
7 182060 Choke Lever and Plate (includes 5)
8 182062 Carburetor Assembly W/Limiter Caps
(includes 9 & 21)
9 610675 Carburetor Gasket
10 181860 Carb Mount Screw
11 181558 Primer and Hose Assembly
12 182063 Carb Mount Assembly (includes 10)
13 684451 Reed Assembly
14 181498 Power Shaft Assembly
15 612115 Carburetor Mount Gasket
16 180026 Crank Case Service Assembly
(includes 10, 14 & 24)
17 612134 Rear Mounting Pad
18 181438 Fuel Tank Assembly (includes 19-21)
19 181559 Fuel Cap Assembly
20 181168 Fuel Return Line
21 682039 Fuel Line Assembly
22 145308 Front Mounting Pad
23 153520 Shroud Assembly
24 181861 Shroud Screw
25 182064 Shroud Extension and Stand
26 180929 Flywheel Assembly
27 181065 Spacer
28 181597 Recoil Pulley Assembly
29 613102 Recoil Spring
30 611061 Rope Guide
31 181441 Pulley Retainer Assembly
32 181442 Switch Assembly (includes 43)
33 181079 Pull Handle
Item
Part No. Description
34 613103 Rope
35 181443 Starter Housing Assembly
(includes 28-34 & 43)
36 181862 Housing Screw
37 181074 Clutch Washer
38 181445 Clutch Rotor Assembly
39 153592 Clutch Drum Assembly
40 180098 Clutch Cover Assembly
41 181345 Cover Screw
42 153597 Upper Clamp Assembly
43 180036 Wire Lead
44 181937 Module Assembly
45 610311 Spark Plug
46 182065 Exhaust Gasket
47 182066 Muffler Assembly (includes 48)
48 147575 Muffler Mounting Bolt Assembly
49 181622 Cylinder Assembly (includes 52)
50 684449 Piston and Rod Assembly
51 610674 Cylinder Gasket
52 181870 Cylinder Bolt
* 180011 Engine Gasket Kit
* 180602 O.E.M. Carburetor Repair Kit (Walbro)
* 180090 O.E.M. Carburetor Repair Kit (Zama)
* 181873 Gasket Diaphragm Repair Kit (Walbro)
* 180091 Gasket Diaphragm Repair Kit (Zama)
* 180530 Piston Ring
* 181623 Short Block Assembly
(includes 10, 14, 16, 24, 45, 49-52)
* 610676 Flywheel Key
* 181501 Starter Housing Screw Set
* 610309 Crankcase Seal
* 181599 Clutch Springs (Qty. 2)
* Items Not Shown
41
1
2
3
8
10
12
3
4
5
7
6
11
13
15
16
50
51
14
22
52
20
17
18
19
21
37
38
39
41
42
40
26
27
28
29
32
30
33
34
32
36
41
35
25
32
43
44
49
45
46
47
48
24
31
23
9
ENGINE PARTS - MODEL 780r
2-CYCLE GAS TRIMMER
(Serial Number 810205234 and greater)
Issued 4/99
BOOM AND TRIMMER PARTS - MODEL 780r
2-CYCLE GAS TRIMMER
(Serial Number 810205234 and greater)
Item Part No. Description
1 182079 Throttle Housing and
Trigger Assembly
(includes 2 & 3)
2 610314 Throttle Trigger Spring
3 181556 Throttle Trigger
4 182068 Throttle Cable Assembly
5 610327 Harness Clip
6 147486 Drive Shaft Housing Assembly
7 180286 J-Handle Assembly (includes 8 & 9)
8 612831 Grip
9 612021 Tube Closure
10 683295 Handle Bracket Assembly (includes 11-16)
11 181811 Screw
12 181812 Upper Handle Clamp
13 181813 Middle Handle Clamp
14 181814 Lower Handle Clamp
15 181815 Nut
16 145569 Anti-Rotation Screw
17 181817 Flexible Drive Shaft
18 683304 Shield Mounting Screw
19 683299 Shield and Blade Assembly (includes 20)
20 682061 Blade Assembly
21a 147539 Shield Mount Screw Assembly (1 piece Gearbox)
21b 182200 Shield Mount Screw Assembly (2 piece Gearbox)
22a 147677 Gearbox Mounting Hardware and
Grease Plug (1 piece Gearbox)
22b 182195 Gearbox Mounting Hardware (2 piece Gearbox)
23 145569 Anti-Rotation Screw (2 piece Gearbox)
24a 147488 1 piece Gearbox Assembly (includes 21a, 22a, 26a & 36)
24b 182193 2 piece Gearbox Assembly (includes 21b, 22b, 26b & 36)
25 147492 Blade Shield
26a 147489 Blade Driver (1 piece Gearbox)
26b 182196 Blade Driver (2 piece Gearbox)
27 147490 Retaining Washer
28 612483 Spool Shaft
29 683301 Outer Spool and Eyelet Assembly
30 612026 Retainer
31 610636 Spring
32 147495 Inner Reel
33 180814 Bump Head Knob Assembly
34 145873 4-Tooth Blade (includes 35)
35 613231 Blade Cover
36 181699 Nut
* 180014 Blade Retaining Kit (includes 27 & 36)
* 613226 Locking Rod Tool
* 682075 Shoulder Harness
2
Piece Gearbox Assembly Parts – Item 24b
37 182191 Left Housing
38 182192 Right Housing
39 182194 Pinion Gear Assembly
40 182199 Output Shaft Bushing
41 182198 Output Shaft Gear
42 182197 Output Shaft Assembly (includes 40 & 41)
Optional Accessories
* 612454 Replacement Line, 0.095 Diameter
* 147345 Reel and Line Assembly
* 147498 Bump Head Assembly (includes 28-33)
* 147543 Ryobi 2-Cycle Oil
* Items Not Shown
17
18
19
30
28
34
29
35
27
25
20
20
32
31
27
33
36
1
1
5
6
13
14
15
16
12
11
9
8
7
10
4
3
2
22a
26a
21a
21b
21b
21a
24a
40
41
37
38
23
23
39
42
26b
26b
22b
22b
24b
22b
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