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Cylinder, 30CC

Part Number: 640841008

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Repair Instructions

*This part replaces obsolete part #: 985524002, 570358054, 6457007 and PS02128.

Product Information

Manufacturer: Ryobi, Homelite, Ridgid

Product Number: 640841008

Classification: Part

Weight: 0.78 lbs.

Shipping: Ships Worldwide

Description:

This is an authentic replacement part, sourced from the original manufacturer for use with trimmers, pruners, blowers, and generators. The metal cylinder is one of the main components of the motor and is used to house the cylinder and provide a chamber for combustion. This item is available as an individual replacement part.

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

Ryobi

RY70103A Curved Shaft Trimmer
RY70105 Straight Shaft Trimmer
RY70105A Straight Shaft Trimmer
RY70107 Straight Shaft Trimmer
RY70107A Straight Shaft Trimmer
RY70113 Curved Split Shaft Trimmer
RY30020 30cc Curved Shaft String Trimmer
RY30060 30cc Brushcutter
SS30 (RY30040) 30cc Straight Shaft String Trimmer
RY30023 30cc Curved Shaft String Trimmer
RY30063 30cc Brushcutter
SS30 (RY30043) 30cc Straight Shaft String Trimmer
RY30020B 30cc String Trimmer
RY30000 RY30000 30CC String Trimmer
RY30000A RY30000A 30CC String Trimmer
RY30002 RY30002 30CC String Trimmer
RY30002A RY30002A 30CC String Trimmer
RY30004 RY30004 30CC Brushcutter
RY30004A RY30004A 30CC Brushcutter
RY30021A RY30021A 30CC String Trimmer
RY30041A RY30041A 30CC String Trimmer
RY30061A RY30061A 30CC Brushcutter
RY52003A (TP30) Gas Pruner
RY52001 (PC30) Pruner/Trimmer
RY52003 (TP30) Gas Pruner
RY52004 (TP30) 30cc Gas Pruner
RY52002 (PC30) Pruner/Trimmer

Homelite

UT-08120-B Blower
UT08934 Blower
UT08934B Blower
UT08934D Blower
UT-08121 Backpack Blower
UT-08120-D Blower
UT-08931 Blower
UT08510 (Yard Broom II) Blower
UT08511 (Yard Broom II) Blower

UT08929A (Yard Sweeper) Blower
UT08930A (Yard Sweeper Vac) Blower
UT08932 Blower
UT70127 Straight Shaft Trimmer
UT70127A Straight Shaft Trimmer
UT70129 Straight Shaft Trimmer
UT70129A Straight Shaft Trimmer
UT-08929-A Yard Sweeper Blower
UT-08930-A Yard Sweeper Vac Blower

Ridgid

RD906812 6,800 Watt Generator
RD906812A Generator

RD906812B Generator

Expand the 75 compatible machines

Products Compatibility

This item works with the following types of products:

• Blower
• Generator
• Pruner
• Trimmer

Questions & Answers

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Repair Instructions: Submitted by Customers Like You

Tool Type:

Trimmer

Parts Used:

Cylinder Gasket - 900953001

Piston Ring 30CC - 690161005

Cylinder, 30CC - 640841008

Repair Difficulty:

Easy

Time Spent Repairing:

30-60 minutes

Tools Used:

Socket set, Wrench Set, Nutdriver

Piston froze in cylinder

10 year old Ryobi
Took engine off from unit
2 Cleaned unit and engine
3 Freed piston from cylinder
4.Removed cylinder from unit and piston
5.Check wear and connecting rod , crank
6.Removed piston rings from connecting rod and installed new piston rings
7.Installed cylinder engine base and reassembled, tested .

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