Manuals+

MTD YM21 CS 2-Cycle Trimmer Replacement Parts

Engine and Fuel Tank Assembly

This section details the replacement parts for the engine and fuel tank assembly of the MTD YM21 CS 2-cycle trimmer. The diagram shows an exploded view of the engine components, including the crankcase, cylinder, flywheel, starter housing, muffler, and fuel tank, along with various fasteners, gaskets, and O-rings. The carburetor and air cleaner components are also shown attached to the engine.

ItemPart No.Description
1753-06919Rear Cover Assembly (includes 2 & 4)
2791-181345Cover Screw
3791-181862Housing Screw
4753-06174O-Ring
5753-06175Flywheel Assembly
6753-06247Washer
7753-06218Spacer
8753-06923Starter Housing (includes 3 & 13)
9753-05860Clutch Assembly
10753-06181Clutch Cover (includes 2)
11753-06418Muffler Assembly (includes 12 & 33)
12753-06419Muffler Gasket
13791-182366U-shaped Nut
14753-06921Fuel Tank Assembly (includes 15 & 16)
15791-181930Tank Screw
16791-182612Fuel Cap
17753-06763Module Assembly
18753-06193Spark Plug
19791-182723Crankcase Bolt
20753-06275Crankcase O-Ring
21753-06189Insulator Assembly (includes 22 & 23)
22753-06184Insulator O-Ring
23753-06185Carburetor O-Ring
24753-06190Carburetor
25753-06415Aircleaner Cover Assembly (includes 26)
26753-06417Aircleaner Filter
27753-06188Throttle Cable
28753-06187Lead Wires
29791-182519Anti-rotation Screw
30753-04003Clamp Screw
31791-180217Clamp Nut
32753-06253Air Cleaner Gasket
33753-06294Muffler Screw
*753-06924Short Block Assembly (includes 4 - 7 & 17 - 20)

Shaft, Handle, and Cutting Head Assembly

This diagram shows an exploded view of the trimmer's shaft, handle, and cutting head. It features the throttle housing assembly (1) with the switch (2) and throttle trigger (3). The upper shaft housing assembly (5) connects to the lower shaft housing assembly (11). The D-handle (6) is mounted on the upper shaft. A split boom coupler (8) allows for separation of the shaft. The cutting head includes the shield assembly (13) and blade assembly (14). The outer spool assembly (15) and inner reel (18) are part of the line feeding mechanism.

ItemPart No.Description
1753-04234Throttle Housing Assembly (includes 2 - 4)
2791-182405Switch
3753-04119Throttle Trigger
4791-182690Throttle Trigger Spring
5753-04344Upper Shaft Housing Assembly
6753-05461D-Handle (includes 7)
7791-181587D-Handle Hardware Assembly
8753-1190Split Boom Coupler (includes 9 - 10)
9791-182057Anti-Rotation Screw
10791-181617Bolt
11753-04508Lower Shaft Housing Assembly
12753-04282Shield Mounting Hardware
13753-04283Shield Assembly (includes 14)
14791-180553Blade Assembly
15753-04284Outer Spool Assembly (includes 16)
16791-610660Retainer
17791-610317BSpring
18753-1155Inner Reel
19791-153066BBump Head Knob Assembly
*753-1156Reel & Line Assembly
*791-180920.095 Replacement Line

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769-07512 QuarkXPress(R) 8.02 QuarkXPress(R) 8.02

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