Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

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Ryoby weedeater throttle housing. Replacing the throttle spring

The spring slipped and Began bulging in the housing. Removed cover, springed popped out.

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From the limited information you have given I think your throttle wire is binding. It could just need lubricating or the throttle shaft or butterfly in the carburetor could be binding. Disconnect the throttle wire from the carburetor and see if the throttle wire is moving freely and check the throttle shaft in the carburetor to make sure it is moving freely. If both are free, then check to see if something is pinching or binding on the throttle cable.

Posted on Sep 14, 2009


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I have a cub cadet bc280 2cycle weedeater the pull string pulls but it want go back in need help please

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How to replace spring on recoil starter

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1 Answer

Throttle body

Absolutely and DANGEROUS. What you need to do is isolate the problem before fixing or replacing parts.

Disconnect the throttle cable. Push on the disconnected cable from the inside of your vehicle. Find out if cable is sticking.

If not, go to the disconnected throttle lever. Try to position it to stick. If it does stick there are several reasons. The TPS switch is binding and needs to be replaced, or the throttle plate may have a missing or loose screw. The screws are usually flared once they are installed and are not meant to be removed. Bad things if engine ate one.

The throttle housing may show signs of binding from the butterfly flap. If the housing was in an accident, the housing may be warped. Carbon buildup can jam action too.

Bad return spring on throttle housing. You need to replace spring or get different throttle body with a strong spring.

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1 Answer

A Part broke off from my Yardman weedeater YM4570 the part that has two parts and are held by two springs which turns and expands when accelerates

The Yard-Man YM4570 is a nice 4-cycle gas trimmer.

It's hard to tell from your description, but the part you are referring to could possibly be related to the throttle assembly:

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Throttle Trigger Spring
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You can get the part numbers and Operators Manual at MTD Products... click here:
Operators Manual

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1 Answer

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1 Answer

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2 Answers

Replacing pull cord on weedeater

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4 Answers

My pull start on a Poulan 3314 Chain Saw (with Spring assist start) was stuck and so I proceeded to take off the cover and rope assembly, which unwound the spring. Everything seems intact (nothing broken),...

I had (and still have) the same problem with the same saw. Like you I took it apart and the spring unwound. The way I finally got it back together was to lie it (spring down) on a flat surface near the edge. I then rewound the spring while holding the white plastice piece in place with a pair of vice grips. Once wound I slid it off the edge of the bench very slowly holding the spring in place with my fingers (carful because if you let it slip it can slice your finger) Then I set it back in holding the hooked end with a screw driver and placing the side opposite the hook in first. I managed on the first try to pop it in place and while it seems to turn and recoil fine when I put the saw back together it still sticks which prompted the repair in the first place.

May 11, 2009 | Poulan P3314 14" Gas Chain Saw 2.0 Cuin...

1 Answer

Weedeater pull cord will not return to original position

Hello mart656:

>>The Following is a General Instruction File I Made to Perform this Repair. If you have Any Suggestions or Remarks, then Please Let me Know. Thanks.
>>**Remove the Boom/Shaft from the Engine. Remove the Mounting Bolts and the Boom and Center Drive Shaft should Slide Away from the Starter Housing Assembly.
>>**On Some Model Trimmers, there is a Torx Screw Inside the Coupling Drive that has to be Removed.
>>****There is also a Locking Screw on the Side of the Housing that is a Anti-Vibration Lock.****
>>Using the Breakdown as a Guide Remove the Starter Housing Assembly from the Engine Assembly.
>>Now Carefully/Slowly Remove the Pressure Plate Assembly from the Starter Housing.
>>The Spring May have Broken and Sometimes a Section will Jump Out when the Pressure Plate Assembly is Removed from the Starter Housing. When it Jumps, it Pushes the Recoil Pulley Out Also.
>>Look at the Direction of the Coil of the Spring in the Housing and Make an Arrow in the Direction of the Coil with a Magic Marker on the Inside of the Housing.
>>Remove the Broken Spring and Clean the Housing with Spray Lubrication. You can Use Solvent if Required, Just be Sure to Wipe it Before Assembly with Spray Lubricant. The New Spring should come with a Retainer that Holds it in a Circle.
>>If you have Removed the Spring from the Retainer, then Use a Piece of Plastic Pipe About 2" Long that is the Same Inside Diameter as the Retainer (Slightly Smaller than the Recess that the Spring Coils Into if you Lost the Retainer).
>>Coil the Spring Into the Pipe and then Set the Spring Into the Recess. Make Sure the Spring Tab of the Spring Engages the Spring Lock in the Recess.
>>Use a Socket to Hold the Spring in Place and Pull the Pipe Out of the Recess.
>>Lock the Pulley in Place.
>>Now Turn the Pulley in the Same Direction that the Pulley would Turn if the Rope was Turning it.
>>Once the Pulley will Turn No More, then Reverse Direction 1 or 2 Turns and Thread the New Rope Through the Hole in the Center of the Pulley and Out the Hole in the Blower Housing.
>>Pull the Rope Through Until it is Tight Against the Pulley. Now Tie a Slip Knot in the Rope to Hold the Pulley in Place While the Handle is Attached to the Rope.
>>Once the Handle is Attached, Release the Slip Knot and the Rope Should Retract Into the Housing. Reassemble the Blower Housing Onto the Engine.
>>On Some Models you May have to Install the Rope Before you Lock the Pulley in Place. If So, there is a U in the Pulley that the Rope is Held in While Turning the Pulley to Tighten the Spring.
>>You can View a Breakdown/IPL of the Mower at this Site Addy, and Select the Catalog Poulan/Weed Eater.
Please, Do Not Hesitate, If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance.
Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.

Good Luck


jbridger (John)

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1 Answer

Replacing carbon brushes

The housing cover is removed by removing the one Torx (t-20 or t-25 ) screw from the end of the housing where the power cord goes inside.  Once this screw is removed the brushes can be quickly replaced.  Go to this page for an exploded diagram.

The screw you want to remove the housing is listed as part 130 in the diagram.  Then the brush (part 801) can be unplugged an removed from brush holder (part 116) by gently pulling back the brush spring (part 126). Then the spring must be held back to install the new brush. Then plug it in, and replace the other brush, test the unit before replacing the housing cover.  The blue sparks generated by running the unit are normal and will decrease as the new brushes are worn to the shape of the armature.  Good Luck!

Oct 06, 2008 | Bosch Die Grinder 1215

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