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MTD YM90BC trimmer

MTD YM90BC trimmer Parts

Here are the diagrams and repair parts for MTD YM90BC trimmer, as well as links to manuals and error code tables, if available.

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Browse Parts for YM90BC Line Trimmers

  • Tiller Washer for MTD YM90BC - Part 936-0271

    Cylinder/flywheel/fuel tank diagram

    Washer

    Part #791-180226

    Replaced by #936-0271

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    Manufacturer substitution
    This part replaces 791-180226. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.23
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  • Bolens Line Trimmer Cutting Head for MTD YM90BC - Part 791-147498

    #NI09

    All parts diagram

    Troybilt Bump Assembly

    Part #753-1161

    Replaced by #791-147498

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    Manufacturer substitution
    This part replaces 753-1161. Substitute parts can look different from the original.
    In Stock
    $122.86
    9% OFF Phone Price : $134.86Info Icon
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  • Line Trimmer Washer for MTD YM90BC - Part 9162-1

    Cylinder/flywheel/fuel tank diagram

    Washer

    Part #791-182396

    Replaced by #9162-1

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    Manufacturer substitution
    This part replaces 791-182396. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.20
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    Qty
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  • Line Trimmer Engine Flywheel for MTD YM90BC - Part 753-05240

    Cylinder/flywheel/fuel tank diagram

    Flywheel

    Part #791-182736

    Replaced by #753-05240

    Info Icon
    Manufacturer substitution
    This part replaces 791-182736. Substitute parts can look different from the original.
    In Stock
    $110.03
    10% OFF Phone Price : $122.03Info Icon
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  • Screw for MTD YM90BC - Part 1964

    Cylinder/flywheel/fuel tank diagram

    Mtd Yard-man Lawn And Garden Equipment Screw

    Part #791-181862

    Replaced by #1964

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    Manufacturer substitution
    This part replaces 791-181862. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $3.89
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  • Lawn & Garden Equipment Cap Nut for MTD YM90BC - Part 712-04018A

    Shield/handle/shaft diagram

    Cap Nut

    Part #753-04386

    Replaced by #712-04018A

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    Manufacturer substitution
    This part replaces 753-04386. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.90
    11% OFF Phone Price : $8.90Info Icon
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  • Line Trimmer Retainer Ring for MTD YM90BC - Part 1772

    Shield/handle/shaft diagram

    Line Trimmer Retainer Ring

    Part #791-612026

    Replaced by #1772

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    Manufacturer substitution
    This part replaces 791-612026. Substitute parts can look different from the original.
    In Stock
    $12.46
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  • Craftsman Lawn & Garden Equipment Engine Muffler Mounting Bolt for MTD YM90BC - Part 710-04188A

    Cylinder/flywheel/fuel tank diagram

    Muffler Screw

    Part #753-04620

    Replaced by #710-04188A

    Info Icon
    Manufacturer substitution
    This part replaces 753-04620. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.54
    12% OFF Phone Price : $8.54Info Icon
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  • Line Trimmer Blade Nut for MTD YM90BC - Part 712-04105

    Shield/handle/shaft diagram

    Nut, Lh

    Part #791-181699

    Replaced by #712-04105

    Info Icon
    Manufacturer substitution
    This part replaces 791-181699. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $16.65
    11% OFF Phone Price : $18.65Info Icon
    Minus Item
    Qty
    Plus Item
  • Clutch Cover for MTD YM90BC - Part 753-04403

    Cylinder/flywheel/fuel tank diagram

    Clutch Cover

    Part #753-04403

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your line trimmers

Choose a symptom to see related grass line trimmer repairs.

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Why does my gas line trimmer run rough?

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

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Why won't my gas line trimmer start?

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

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Why does my gas line trimmer leak gas?

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

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Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

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How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

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Repair time and Difficulty

 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

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Repair time and Difficulty

 15 minutes or less
How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Read more

Repair time and Difficulty

 15 minutes or less

Effective articles & videos to help repair your line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

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Line trimmer: Preventing fuel vapor lock in hot summer conditions

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Vapor lock can stop your trimmer cold in summer heat. Learn how to prevent it and keep your lawn looking sharp…

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Straight shaft vs curved shaft trimmers: What’s the difference?

Straight shaft vs curved shaft trimmers: What’s the difference?

Trying to decide between a straight shaft and curved shaft trimmer? This guide compares both designs to help you underst…

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Can you cut grass with a weed whacker?

Can you cut grass with a weed whacker?

Wondering if your weed whacker can pick up the slack for your broken lawn mower? You're not alone. In this guide, we bre…

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