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Sears
Cycling

Model # 502457021 Official Sears 20" moto-cross bicycle

Here are the diagrams and repair parts for Official Sears 502457021 20" moto-cross bicycle, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 68 parts  |
R Wheel Assy 303013C
#18

Unit parts diagram

R wheel assy

Part #303013C

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

Axle Mx 303520

#NI

All parts diagram

Axle mx

Part #303520

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

Spk 7-9/16 303155
#8

Unit parts diagram

Spk 7-9/16

Part #303155

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

F Wheel 303005C
#7

Unit parts diagram

F wheel

Part #303005C

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

Ret/balls 304668
#14

Bendix coaster brake diagram

Ret/balls

Part #304668

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

Wedge 302107
#5

Unit parts diagram

Wedge

Part #302107

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

Grip 32770
#2

Unit parts diagram

Grip

Part #32770

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

Trap 303466
#16

Unit parts diagram

Trap

Part #303466

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

Drive Screw 304792
#13

Bendix coaster brake diagram

Drive screw

Part #304792

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

Dust Cap 304797
#6

Bendix coaster brake diagram

Dust cap

Part #304797

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

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Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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Repair difficulty
Time required
 15 minutes or less
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Time required
 60 minutes or less
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How to replace a lawn mower starter rope

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Repair difficulty
Time required
 30 minutes or less

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Lawn mower won't start troubleshooting video: spark plug and ignition problems video

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