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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.

MTD YM90BC trimmer
By Schematic
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Browse Parts for YM90BC Line Trimmers

  • Lock Out Lvr for MTD YM90BC - Part 731-04971B-10

    Shield/handle/shaft diagram

    Throttle Trigger

    Part #753-05171

    Replaced by #731-04971B-10

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    Manufacturer substitution
    This part replaces 753-05171. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $9.23
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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

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    Manufacturer substitution
    This part replaces 753-04620. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.54
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  • Gasket Carb for MTD YM90BC - Part 791P610675

    Cylinder/flywheel/fuel tank diagram

    Yard Machines Lawn & Garden Equipment Engine Carburetor Mounting Gasket

    Part #791-610675

    Replaced by #791P610675

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    Manufacturer substitution
    This part replaces 791-610675. Substitute parts can look different from the original.
    In Stock
    $29.53
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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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  • 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
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  • Pull Handle for MTD YM90BC - Part 631-04164B

    Cylinder/flywheel/fuel tank diagram

    Starter Handle

    Part #791-181079

    Replaced by #631-04164B

    Info Icon
    Manufacturer substitution
    This part replaces 791-181079. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.33
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  • Lawn & Garden Equipment Hex Lock Nut for MTD YM90BC - Part 712-0161

    Cylinder/flywheel/fuel tank diagram

    Spacer Nut

    Part #791-180217

    Replaced by #712-0161

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    Manufacturer substitution
    This part replaces 791-180217. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $6.68
    13% OFF Phone Price : $7.68Info 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

    Info Icon
    Manufacturer substitution
    This part replaces 791-612026. Substitute parts can look different from the original.
    In Stock
    $12.46
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    Plus Item
  • Screw-10-9 X for MTD YM90BC - Part 1755

    Cylinder/flywheel/fuel tank diagram

    Scr:10-9x.50

    Part #753-1202

    Replaced by #1755

    Info Icon
    Manufacturer substitution
    This part replaces 753-1202. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.06
    Minus Item
    Qty
    Plus Item
  • Plate for MTD YM90BC - Part 753-04417

    Cylinder/flywheel/fuel tank diagram

    Plate

    Part #753-04417

    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.

View all

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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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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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 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
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…

Read more

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 …

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…

Read more
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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