MTD YM90 Trimmer User Manual


 
E26
PARTS LIST
ENGINE PARTS - YM90
2-CYCLE GAS TRIMMER / BRUSHCUTTER
Item
Part No. Description
31 753-04335 Starter Housing Assembly
(includes 23-30, 32 & 37)
32 791-181862 Housing Screw
33 791-182396 Clutch Washer
34 791-182369 Clutch Rotor Assembly
35 791-153592 Clutch Drum Assembly
36 753-1204 Clutch Cover Assembly (includes 37-40)
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
43 753-04336 Module Assembly
44 791-610311B Spark Plug
45 753-04618 Muffler Assembly (includes 46 & 47)
46 753-04619 Exhaust Gasket
47 753-04620 Muffler Mounting Bolt Assembly
48 753-04814 Cylinder Assembly (includes 51 & 52)
49 753-04367 Piston and Rod Assembly
50 753-04182 Cylinder Gasket
51 791-182723 Cylinder Bolt
* 753-04689 Spark Arrestor
* 753-1209 Piston Ring Set
* 753-04812 Short Block Assembly (includes 8, 13, 44 & 48-51)
* 791-181599 Clutch Springs (Qty. 2)
* Items Not Shown
37
1
2
3
6
8
10
3
4
5
9
11
13
49
50
12
19
51
17
14
15
16
18
33
34
35
21
22
29
23
24
27
25
32
40
31
20
42
43
48
44
46
45
47
7
41
38
37
36
Item Part No. Description
1 753-04810 Air Cleaner Cover Assembly (includes 2 & 37)
2 791-180350B Air Cleaner Filter
3 791-180351 Carburetor Mounting Screw Assembly
4 753-04227 Choke Lever
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
13 753-04332 Crank Case Service Assembly (includes 10)
14 791-612134 Rear Mounting Pad
15 753-04307 Fuel Tank Assembly (includes 16-18)
16 753-1187 Fuel Cap Assembly
17 791-181086 Fuel Return Line
18 753-04233 Fuel Line Assembly
19 791-145308 Front Mounting Pad
20 753-04702 Shroud Extension & Stand (includes 37)
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
29 753-04417 Pressure Plate Assembly (includes 30)
30 753-1202 Plate Screw
30
26
28
37
39
37