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Parts Diagrams throttle trigger interlock spring to throttle trigger

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How do I put the throttle trigger back together?

Hi Myles:
Since I don't know your machine, I can only give you the logic that I would follow if I were given your box of parts.
- The springs are intended to return the trigger to the idle position.
- With the motor off, Move the trigger from idle to full on, then back to idle. That's what is upposed to happen with the spring pulling it back.
- The other spring is connected to a governor. that is sometimes a "vane" that gets air from the blades on the flywheel, but the idea is that when th engine is under load, more throttle gets applied.
Consider it a fun project in logic.
Play with it, and all of a sudden all of the bits will be right and you'll be cutting grass like a mad thing.

Nov 26, 2015 | Garden

1 Answer

I can't get my stihl chainsaw trigger throttle and trigger interlock to catch so I can start it. I pressed them both at same time but does not catch.

Release the interlock button first, then the trigger throttle. If this does not work, replace the interlock button.

Oct 23, 2013 | Stihl 009l

1 Answer

Throttle trigger does not retract

Item 6 on the plan are spring washers, i cannot see any other tension springs that control the retraction of the trigger. Hope this helps you.3_2_2013_11_20_49_pm.jpg

Jan 06, 2013 | Stihl BR400 Backpack Leaf Blower

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:

Throttle Housing & Trigger Assembly
Part Number: 753-04234

Throttle Trigger Spring
Part Number: 791-182690

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

Nov 14, 2011 | Garden

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I have a spring missing off thr trottlebecause of this i can not get full throttle where doesthis spring go

There are typically two springs connected to the throttle linkage. One is on the carb, and one is in the handle. Those springs are meant to shut the throttle down when you let go of the trigger. The one that could cause the problem you are describing would most likely be the one in the handle. If that one becomes dislodged, is installed incorrectly, or is jammed by a piece of debris it could limit how far you are able to pull the trigger. If you are not able to press the trigger fully into the handle, then that is where I would check. If you are able to press the trigger all the way, then the problem is elsewhere.

If you are saying the spring is missing because it is no longer inside the saw, please describe it the best you can, and I will do my best to give a more precise location for installing it.

Wasn't able to get Poulan's online manuals to load for me, but perhaps you'll have better luck.

Here is the web site:

Select Download Manual

Select Illustrated Parts List and enter the model number for your saw. (It looked like there may have been two or three different models called wild thing.)

The Poulan manual will give you a detailed breakdown of every part in your saw, and where it goes.

Sep 26, 2011 | Poulan 18" Wild Thing Chainsaw

1 Answer

My throttle continues to stick. The motor races and it sounds like the engine is about to explode because of its speed. I opened up the handle and the spring seems out of place. When I squeeze the trigger...

You should see some small wear marks inside the handle where the spring is supposed to rest. Also, check the throttle cable where it exits the plastic engine housing and goes to the throttle plate on the carburetor. Make sure it is connected correctly and not binding on anything on the way to the carburetor. There really aren't any diagrams or pictures available on the net of the insides of a Ryobi weed-trimmer's throttle trigger and spring.
When you squeeze the trigger the steel cable should move, the cable housing should NOT. If you look closely, you will maybe see how it works and all goes together. It is not that complicated.

May 21, 2011 | Ryobi Garden

1 Answer

Husqvarna 365 order to install trigger, throttle catch and spring

Here's a link to the husky parts list.

Mar 23, 2009 | Husqvarna Garden

1 Answer

Poulan 3400 chainsaw throttle trigger

Its a missing or broken spring in the handle(trigger). If you look inside the handle you should see a circular spring around the post of the trigger. This spring returns trigger to idle position. If its missing or broken the trigger won't spring back.

Oct 12, 2008 | Poulan Garden

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