RY40502 Ryobi Chainsaw - Overview

Sections of the RY40502

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Screw (M4 x 9.5 mm) – Part Number: 660610001
Screw (M4 x 9.5 mm)
PartSelect #: PS9989437
Manufacturer #: 660610001
$5.95
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OIL TANK CAP – Part Number: 306888001
OIL TANK CAP
PartSelect #: PS18783640
Manufacturer #: 306888001
$8.95
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Cone Spring – Part Number: 671090001
Cone Spring
PartSelect #: PS9995524
Manufacturer #: 671090001
$5.95
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Screw (m4 X 12 Mm) – Part Number: 660608001
Screw (m4 X 12 Mm)
PartSelect #: PS9989435
Manufacturer #: 660608001
This is a genuine Homelite replacement part. The screw is designed by the manufacturer for use in chainsaws and lawn mowers. This part is made of metal, and may be found in various locations in the ...
$5.95
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Oil Pump Assembly – Part Number: 309514001
Oil Pump Assembly
PartSelect #: PS9938751
Manufacturer #: 309514001
This is a genuine manufacturer-sourced part which is specially designed for use with Homelite and Ryobi chainsaws. It is an identical replacement for a missing or damaged oil pump assembly that was in...
$12.95
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OUTPUT OIL TUBE – Part Number: 563438001
OUTPUT OIL TUBE
PartSelect #: PS18786701
Manufacturer #: 563438001
$5.95
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METAL PLATE INSERT – Part Number: 635349001
METAL PLATE INSERT
PartSelect #: PS18787307
Manufacturer #: 635349001
$5.95
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WRENCH – Part Number: 612330001
WRENCH
PartSelect #: PS18787120
Manufacturer #: 612330001
$5.95
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DRIVEN ADJUSTMENT GEAR – Part Number: 612376001
DRIVEN ADJUSTMENT GEAR
PartSelect #: PS18787121
Manufacturer #: 612376001
$5.95
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C-RING – Part Number: 635333001
C-RING
PartSelect #: PS18787305
Manufacturer #: 635333001
$5.95
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GUIDE PLATE BAR – Part Number: 635335001
GUIDE PLATE BAR
PartSelect #: PS18787306
Manufacturer #: 635335001
$5.95
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INPUT OIL TUBE – Part Number: 563439001
INPUT OIL TUBE
PartSelect #: PS18786702
Manufacturer #: 563439001
$5.95
  Special Order

Questions And Answers for RY40502

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1 question answered by our experts.
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Jim
December 28, 2023
My chainsaw won't run the motor at all so i took it apart and tried replacing the switch. That didn't work. I wonder if there is a fuse on this unit or the whole motor controller is bad? When i put in a battery and press the power level button on the battery it shows zero bars. i remove the battery and it shows 3 bars. Something is causing the battery to short out?
For model number RY40502
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Hello Jim, thank you for reaching out. According to our understanding, the issue is with the motor controller and battery connector, party number PS11857128. You may need to replace it to fix the issue. We hope this solves your problem!
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Common Symptoms of the RY40502

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Chain comes off guide bar
Fixed by
these parts
Fixing
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