Page 1
Issued 11/02
Item
Part No. Description
31 753-04335 Starter Housing Assembly
(includes 23-30 & 32)
32 791-181862 Housing Screw
33 791-182368 Clutch Washer
34 791-182369 Clutch Rotor Assembly
35 791-153592 Clutch Drum Assembly
36 753-1204 Clutch Cover Assembly
(includes 41-44)
37 791-181345 Cover Screw
38 791-182519 Anti-Rotation Screw
39 753-04003 Clamping Screw
40 791-180217 Clamping Nut
41 791-182798 Wire Leads and Sleeve
42 791-611063 Ground Tab
43 753-04337 Module Assembly
44 791-610311B Spark Plug
45 791-182066 Muffler Assembly (includes 47-49)
46 791-182747 Spark Arrestor Screen
47 753-04159 Exhaust Gasket
48 791-147575 Muffler Mounting Bolt Assembly
49 753-04323 Cylinder Assembly (includes 52)
50 753-1207 Piston and Rod Assembly
51 753-1197 Cylinder Gasket
52 791-182723 Cylinder Bolt
* 791-180090 O.E.M. Carburetor Repair Kit (Zama)
* 791-180091 Gasket Diaphragm Repair Kit (Zama)
* 753-1209 Piston Ring Set
* 753-04334 Short Block Assembly
(includes 8, 12, 14, 22, 48, 51-56)
* 791-181599 Clutch Springs (Qty. 2)
* 753-04134 Eng Gasket Kit
* Items Not Shown
37
1
2
3
6
8
10
3
4
5
9
11
13
50
51
12
19
52
17
14
15
16
18
33
34
35
21
22
29
23
24
27
25
32
40
31
20
42
43
49
44
47
45
48
7
ENGINE PARTS - MODEL YM90
2-CYCLE GAS TRIMMER/BRUSHCUTTER
PPN 41ADY90C401
41
38
37
36
46
Item Part No. Description
1 753-1192 Air Cleaner/Muffler Cover Assembly
(includes 2 & 41)
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
9 791-181558 Primer and Hose Assembly
10 791-182063 Carb Mount Assembly (includes 8 & 11)
11 791-684451 Reed Assembly
12 753-1208 Carburetor Mount Gasket
13 753-04332 Crank Case Service Assembly
(includes 10)
14 791-612134 Rear Mounting Pad
15 753-04307 Fuel Tank Assembly (includes 16-18)
16 791-182612 Fuel Cap Assembly
17 791-181168 Fuel Return Line
18 753-04233 Fuel Line Assembly
19 791-145308 Front Mounting Pad
20 791-182064 Shroud Extension and Stand
21 791-182736 Flywheel Assembly
22 791-181065 Spacer
23 753-1199 Recoil Pulley Assembly
24 753-04286 Recoil Spring
25 753-1200 Rope Guide
26 753-04288 Pulley Retainer
27 791-181079 Pull Handle
28 791-613103 Rope
29 753-1201 Pressure Plate Assembly
30 7531202 Plate Screw
30
26
28
37
39
Page 2
25
26
26
30
27
27
28
32
33
38
36
37
42
35
31
34
34
40
39
35
41
43
1
1
6
15
16
17
18
14
13
11
10
9
12
8
7
2
3
4
5
29
21
20
19
22
23
24
Issued 11/02
BOOM AND TRIMMER PARTS - MODEL YM90
2-CYCLE GAS TRIMMER/BRUSHCUTTER
PPN 41ADY90C401
Item
Part No. Description
1 753-04339 Throttle Housing and Trigger
Assembly (includes 2-4)
2 753-04340 Throttle Trigger Lock-Out
3 791-00058 Throttle Trigger
4 791-182690 Throttle Trigger Spring
5 791-182405 Switch Assembly
6 753-04278 Throttle Cable Assembly
7 791-610327 Harness Clip
8 753-04236 Upper Drive Shaft Housing Assembly
9 791-181099 J-Handle Assembly (includes 10 & 11)
10 791-612831 Grip
11 791-612021 Tube Closure
12 791-683295 Handle Bracket Assembly (includes 13-18)
13 791-181811 Screw
14 791-181812 Upper Handle Clamp
15 791-181813 Middle Handle Clamp
16 791-181814 Lower Handle Clamp
17 791-181815 Nut
18 791-145569 Anti-Rotation Screw
19 791-182928 Click-Link Coupler (includes 20-23)
20 791-182057 Screw
21 791-181617 Bolt
22 791-181618 Adjustment Knob
23 791-181886 Knob Retaining Nut
24 791-180804 Lower Drive Shaft Housing Assembly
25 791-613300 Lower Flexible Drive Shaft
26 791-182200 Shield Mount Screw Assembly
27 791-182193 2 piece Gearbox Assembly (includes 28-30)
28 791-182195 Gearbox Mounting Hardware
29 791-145569 Anti-Rotation Screw
30 791-182196 Blade Driver
31 791-147492 Blade Shield/Shield Mount
32 791-683304 Shield Mounting Screw
33 753-1191 Shield and Blade Assembly (includes 34)
34 791-682061 Blade Assembly
35 791-147490 Retaining Washer
36 791-612483 Spool Shaft
37 791-683301 Outer Spool and Eyelet Assembly
38 791-612026 Retainer
39 791-610636B Spring
40 791-147495 Inner Reel
41 791-180814B Bump Head Knob Assembly
42 791-145873B 4-Tooth Blade
43 791-181699 Nut
* 791-180014B Blade Retaining Kit (includes 35 & 43)
* 791-613226 Locking Rod Tool
* 791-682075B Shoulder Harness
2 Piece Gearbox Assembly Parts – Item 27
44 791-182191 Left Housing
45 791-182192 Right Housing
46 791-182194 Pinion Gear Assembly
47 791-182199 Output Shaft Bushing
48 791-182198 Output Shaft Gear
49 791-182197 Output Shaft Assembly
(includes 46 & 47)
50 753-04348 Palnut
Optional Accessories
* 753-1160 Reel and Line Assembly
* 753-1161 Bump Head Assembly
(includes 36-41)
* 791-682075B Shoulder Harness
* Items Not Shown
47
48
44
28
45
30
29
28
46
49
50
Loading...