Item
Part No. Description
30 753-04495 Starter Housing Assembly
(includes 23-29, 31 & 52)
31 791-181862 Housing Screw
32 791-182368 Clutch Washer
33 791-182369 Clutch Rotor Assembly
34 791-153592 Clutch Drum Assembly
35 753-04497 Clutch Cover Assembly (includes 36-39)
36 791-181345 Cover Screw
37 791-182519 Anti-Rotation Screw
38 753-04003 Clamping Screw
39 791-180217 Clamping Nut
40 791-182798 Wire Leads and Sleeve
41 791-611063 Ground Tab
42 753-04437 Module Assembly (includes 41)
43 791-610311B Spark Plug
44 791-182066 Muffler Assembly (includes 45-47)
45 791-182747 Spark Arrestor Screen
46 753-04159 Exhaust Gasket
47 791-147575 Muffler Mounting Bolt Assembly
48 753-04323 Cylinder Assembly (includes 50 & 51)
49 753-04367 Piston and Rod Assembly
50 753-1197 Cylinder Gasket
51 791-182723 Cylinder Bolt
52 753-1202 Screw
* 791-180090 O.E.M. Carburetor Repair Kit
* 791-180091 Gasket Diaphragm Repair Kit
* 753-1209 Piston Ring Set
* 753-04404 Short Block Assembly (includes 13, 43, 48 & 49)
* 791-181599 Clutch Springs (Qty. 2)
* Items Not Shown
37
2
3
6
8
10
3
4
5
9
11
12
13
49
50
19
51
17
14
15
16
18
32
33
34
21
22
29
23
24
27
25
39
30
20
41
42
48
43
46
47
7
40
37
36
35
45
Item
Part No. Description
1 753-1192 Air Cleaner/Muffler Cover Assembly
(includes 2 & 36)
2 791-180350B Air Cleaner Filter
3 791-180351 Carburetor Mounting Screw Assembly
4 753-04227 Choke Extension
5 753-1194 Choke Plate
6 753-04338 Carburetor Assembly (includes 7 & 18)
7 791-610675 Carburetor Gasket
8 791-181860 Carb Mount Screw
9 791-683974B Primer and Hose Assembly
10 753-1196 Carb Mount Assembly (includes 8, 11 & 12)
11 791-684451 Reed Assembly
12 753-1208 Carburetor Mount Gasket
13 753-04401 Crank Case Service Assembly
(includes 8)
14 791-612134 Rear Mounting Pad
15 753-04493 Fuel Tank Assembly (includes 16-18)
16 791-182438 Fuel Cap Assembly
17 791-181068 Fuel Return Line
18 791-683398 Fuel Line Assembly
19 791-145308 Front Mounting Pad
20 791-182064 Shroud Extension & Stand (includes 36)
21 791-182736 Flywheel Assembly
22 791-181525 Spacer
23 753-04459 Recoil Pulley
24 753-04286 Recoil Spring
25 753-1200 Rope Guide
26 791-181247 Pulley Retainer
27 791-181079 Pull Handle
28 791-613103 Rope
29 753-1201 Pressure Plate Assembly (includes 36)
52
26
28
36
38
44
31
1
37
Issued 10/03
ENGINE PARTS - MODEL 790r
2-CYCLE GAS TRIMMER/BRUSHCUTTER
PPN 41FD790A034
Issued 10/03
23
24
24
28
25
25
30
31
36
34
35
40
33
29
32
32
38
37
33
39
41
6
12
11
9
10
8
5
27
19
18
17
20
21
22
Item Part
No. Description
1 791-182801 Throttle Housing Assembly (includes 2-4)
2 791-182802 Throttle Trigger Lock-Out
3 791-182803 Throttle Trigger
4 791-182690 Throttle Trigger Spring
5 791-182405 Switch Assembly
6 753-04405 Throttle Cable Assembly
7 791-610327 Harness Clip
8 753-04236 Upper Drive Shaft Housing Assembly
9 791-181099 J-Handle Assembly
10 791-683295 Handle Bracket Assembly (includes 11-16)
11 791-181811 Screw
12 791-181812 Upper Handle Clamp
13 791-181813 Middle Handle Clamp
14 791-181814 Lower Handle Clamp
15 791-181815 Nut
16 791-145569 Anti-Rotation Screw
17 791-181616 Split Boom Coupler (includes 18-21)
18 791-182057 Screw
19 791-181617 Bolt
20 791-181618 Adjustment Knob
21 791-181886 Knob Retaining Nut
22 791-180804 Lower Drive Shaft Housing Assembly
23 791-613300 Lower Flexible Drive Shaft
24 791-182200 Shield Mount Screw Assembly
25 791-182193 2 piece Gearbox Assembly (includes 26-28 & 33)
26 791-182195 Gearbox Mounting Hardware
27 791-145569 Anti-Rotation Screws
28 791-182196 Blade Driver
29 791-147492 Blade Shield/Shield Mount
30 791-683304 Shield Mounting Screw
31 791-683299 Shield Assembly (includes 34)
32 791-682061 Blade Assembly
33 791-147490 Retaining Washer
34 791-612483 Spool Shaft
35 791-683301 Outer Spool Assembly (includes 36)
36 791-612026 Retainer
37 791-610636 Spring
38 791-147495 Inner Reel
39 791-180814 Bump Head Knob Assembly
40 791-145873 4-Tooth Blade
41 791-181699 Nut
* 791-180014 Blade Retaining Kit (includes 42 & 43)
* 791-613226 Locking Rod Tool
2 Piece Gearbox Assembly Parts – Item 25
42 791-182191 Left Housing
43 791-182192 Right Housing
44 791-182194 Pinion Gear Assembly
45 791-182199 Output Shaft Bushing
46 791-182198 Output Shaft Gear
47 791-182197 Output Shaft Assembly (includes 46 & 47)
48 753-04348 Palnut
Optional Accessories
* 791-147498 Bump Head Assembly
* 791-180120 Replacement Line,
0.095 Diameter
* 791-147345 Reel and Line Assembly
* 791-682075 Shoulder Harness
* Items Not Shown
45
46
42
26
43
28
27
26
44
47
BOOM & TRIMMER PARTS - MODEL 790r
2-CYCLE GAS TRIMMER/BRUSHCUTTER
PPN 41FD790A034
26
16
14
13
7
4
3
2
1
1
15
48
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