Ryobi 2079r User manual

Reissued 6/03
ENGINE PARTS - MODEL 2079r
2-CYCLE GAS TRIMMER
PPN 41BD279A034
46
38 39 36 37 35 34
68
69
68
18 19 16
15
14
43
42
14
25
20
30
29
28
27
49
53
56
51
48 6
57
49
54 55 52 50
7
12
13
70
10
9
8
11
1
5
47
63
62
33
31
64
58
61
65
59
61 60
32
26
424
17
16
24
22
2
3
21 23
45
44
71
67
41 40
Item Part No. Description
40 791-181742 Rope
41 791-181743 Pull Handle
42 791-182118 Pulley Assembly (includes 43-45)
43 791-181745 Ratchet
44 791-181746 Spring
45 791-181747 Retaining Ring
46 791-181716 Screw
47 791-181748 Throttle Bracket
48 791-181749 Carburetor (includes Primer Bulb)
49 791-181750 Screw
50 791-181751 O-Ring
51 791-181752 Air Cleaner Assembly (includes 56 & 57)
52 791-181753 Sleeve
53 791-181754 Choke Plate
54 791-181755 Choke Lever
55 791-181756 Screw
56 791-181757 Air Filter
57 791-181758 Air Cleaner Cover
58 791-181967 Clutch Housing Assembly
59 791-181760 Engine Bolt
60 791-181761 Nut
61 791-181762 Screw
62 791-181968 Engine Cover
63 791-181716 Screw
64 791-181765 Spark Plug
65 791-181629 Anti-Rotation Screw
66 791-181774 Fuel Tank (includes 67-69)
67 791-182612 Fuel Cap Assembly
68 791-181767 Fuel Line Assembly
69 791-181768 Screw
70 791-181769 Lead Wire Assemby
71 791-612468 Compression Spring
*791-181701 Primer Bulb
*791-181702 Carburetor Repair Kit
*791-181703 Gasket/Diaphragm Repair Kit
*not shown
Item Part No. Description
1791-181704 Cylinder
2791-181705 Cylinder Base Gasket
3791-181706 Bolt
4791-181707 Insulator
5791-181708 Insulator Gasket
6791-181709 Carburetor Gasket
7791-181710 Screw
8791-181711 Muffler Assembly (includes 9 & 10)
9791-181712 Muffler
10 791-181713 Screw
11 791-181714 Muffler Gasket
12 791-181715 Muffler Plate
13 791-181716 Screw
14 791-181717 Crankcase Service Assembly
(includes 15-19 & 25)
15 791-181718 Crankcase Gasket
16 791-181719 Bearing
17 791-181720 Oil Seal
18 791-181721 Oil Seal
19 791-181722 Snap Ring
20 791-181723 Screw
21 791-181724 Piston
22 791-181725 Ring
23 791-181726 Piston Pin
24 791-181727 Snap Ring
25 791-181728 Crankshaft
26 791-181729 Key
27 791-181730 Clutch Rotor
28 791-181074 Clutch Washer
29 791-181731 Spacer
30 791-181732 Flywheel Assembly
31 791-181733 Module Assembly (includes 32 & 33)
32 791-181734 Spacer
33 753-1181 Screw
34 791-181777 Recoil Assembly (includes 35-41)
35 791-181737 Recoil Case
36 791-181738 Recoil Pulley
37 791-181739 Recoil Spring
38 791-181740 Screw
39 791-181741 Washer

Item Part No. Description
1791-180866 Grip
2791-181688 Throttle Cable Assembly
3791-180975 Throttle Trigger
4791-610314 Throttle Trigger Spring
5791-181689 Throttle Trigger Assembly (includes 3 & 4)
6791-180252 Switch Assembly
7791-181690 Wire Lead Assembly
8791-181969 Upper Drive Shaft Housing Assembly
9791-610327 Shoulder Harness Clamp
10 791-180869 D-Handle Assembly (includes 11-13)
11 791-181070 Screw
12 791-182167 Loop Handle
13 791-182168 Bottom Clamp
14 791-181810 Nut
15 791-181616 Split Boom Coupler (includes 16-19)
16 791-182057 Screw
17 791-181617 Bolt
18 791-181618 Adjustment Knob
19 791-181886 Knob Retaining Nut
20 791-181972 Lower Drive Shaft Housing
21 791-181570 Drive Shaft
22 791-182200 Shield Mount Screw Assembly
23 791-182189 Shield & Blade Assembly (includes 24)
24 791-682061 Blade Assembly
25 791-182195 Gearbox Mounting Hardware
26 791-145569 Anti-Rotation Screw
27 791-182193 2 piece Gearbox Assembly (includes 35-40)
28 791-182196 Blade Driver
29 791-612483 Spool Shaft
30 791-683301 Outer Spool & Eyelet Assembly
31 791-612026 Retainer
32 791-610636 Spring
33 791-147495 Inner Reel
34 791-180814 Bump Head Knob Assembly
2Piece Gearbox Assembly Parts –Item 27
35 791-182191 Left Housing
36 791-182192 Right Housing
37 791-182194 Pinion Gear Assembly
38 791-182199 Output Shaft Bushing
39 791-182198 Output Shaft Gear
40 791-182197 Output Shaft Assembly (includes 38 & 39) Optional Accessories
*791-612454 Replacement Line, 0.095 Diameter
*791-147345 Reel and Line Assembly
*791-147498 Bump Head Assembly (includes 29-34)
*791-147543 Ryobi 2-Cycle Motor Oil
*791-682075 Shoulder Harness
*791-300026 Brush Cutter Accessory Kit
*Items Not Shown
Reissued 6/03
BOOM AND TRIMMER PARTS - MODEL 2079r
2-CYCLE GAS TRIMMER
PPN 41BD279A034
5
2
1
5
7
11
12
98
14
43
13
10 17
16
18
15
19
20
21
27
24
24
26
23
28
29
31
30
32
33
34
38 39
35
36
26
37
40
22
25
27
25
28
25
22
6