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I have a not-too-old Troy Bilt pressure washer powerd by a Briggs and Straton 175 engine. The throttle linkage is off, which results in a wonky idle and it not reving when I pull the trigger. Having searched for pictures of the linkage online and found none, I'm turning to this forum for some help. Can anyone guide me to figuring out what is wrong here, please? The arm that runs vertically in these pictures pops off the pivot point easily (too easy?) when I mess with it.

barely handy said:

I have a not-too-old Troy Bilt pressure washer powerd by a Briggs and Straton 175 engine. The throttle linkage is off, which results in a wonky idle and it not reving when I pull the trigger. Having searched for pictures of the linkage online and found none, I'm turning to this forum for some help. Can anyone guide me to figuring out what is wrong here, please? The arm that runs vertically in these pictures pops off the pivot point easily (too easy?) when I mess with it.


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The tab at the bottom left of picture is how you adjust RPMs by bending it. Need a tachometer to check and adjust as needed. The engine speed will not change when you pull the trigger on wand for water to come out, it will remain the same. Including the model number will be helpful.

But it should sound like it is laboring more under load.

I do not see a model number anywhere. Just Troy-bilt 2700 Max PSI 2.3 Max Psi. There is an engine serial number but I don't think that will help much.

There are two black plastic arms in that picture that pivot. When I ran it last, it seemed that they weren't operating in a linked fashion. It may have been bumped and knocked out of proper alignment over the winter. How can I find out how they should be aligned/linked?

If it is an engine serial, I should be able to lookup the engine actual model depending the age of the engine.

Something I noticed from the pictures is the choke return spring is binding on the thermostat actuated arm that opens the choke when warm. That spring shouldn't be rubbing on the other pivots. So possibly something wrong with the arm that spring connects to. Worked on a similar model last fall that had issues where the choke would open correctly when first started but when a load was applied the choke would close partially and would hang up on the throttle arm that was supposed to hold it open.

StarTech said:

But it should sound like it is laboring more under load.

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Engine serial number: 12 0905 62 11761

I really appreciate all the help and attention from everyone.

Model number 111P02-0113-F1

This is too late to help you barely handy, but it might help others in your or similar situations:

Find Your Utility Engine Model Number:​

How To Find Utility Engine Model Number | Briggs & Stratton

Looking for the engine model number for your pressure washer, generator or tiller? This Briggs & Stratton video shows you were to find it!

www.briggsandstratton.com

Tool_Maker_Tim said:

This is too late to help you barely handy, but it might help others in your or similar situations:

Find Your Utility Engine Model Number:​

How To Find Utility Engine Model Number | Briggs & Stratton

Looking for the engine model number for your pressure washer, generator or tiller? This Briggs & Stratton video shows you were to find it!

www.briggsandstratton.com

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The thing is I will almost bet that the model numbers on this engine are not in a location listed in the attached post. I will bet the numbers are stamped into the side of the block beside the muffler on what would be the right side of the engine, if the valve cover is facing away from the person. And none of the Briggs model number find reference that location.

ILENGINE said:

The thing is I will almost bet that the model numbers on this engine are not in a location listed in the attached post. I will bet the numbers are stamped into the side of the block beside the muffler on what would be the right side of the engine, if the valve cover is facing away from the person. And none of the Briggs model number find reference that location.

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Good point ILENGINE. I can't tell you how many machines Ithat have looked up, trying to find the location of those numbers, only to discover they are in the stated location EXCEPT for my particular piece of equipment! This is a good starting point though. Thanks for the tip!

Tool_Maker_Tim said:

Good point ILENGINE. I can't tell you how many machines Ithat have looked up, trying to find the location of those numbers, only to discover they are in the stated location EXCEPT for my particular piece of equipment! This is a good starting point though. Thanks for the tip!

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Wait until you go looking for the model number on the Briggs XR engines where it is stamped into the mounting flange next to the oil drain plug and the engine is mounted to a piece of equipment that required either a mirror, or a borescope to get down into the crevice to read the numbers that are covered in oil.

ILENGINE said:

Wait until you go looking for the model number on the Briggs XR engines where it is stamped into the mounting flange next to the oil drain plug and the engine is mounted to a piece of equipment that required either a mirror, or a borescope to get down into the crevice to read the numbers that are covered in oil.

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Put a drop of oil on linkages & all moving parts.

Springs look to tight, not allowing the governor to operate under a load. Is the unloader working? could be stuck in open position.

Through my experience, the model/serial number placards of the unit are underneath the unit, so you about have to roll it over to see it. B&S numbers normally stamped on valve cover or blower housing, or in a QR code on a sticker.

barely handy said:

I have a not-too-old Troy Bilt pressure washer powerd by a Briggs and Straton 175 engine. The throttle linkage is off, which results in a wonky idle and it not reving when I pull the trigger. Having searched for pictures of the linkage online and found none, I'm turning to this forum for some help. Can anyone guide me to figuring out what is wrong here, please? The arm that runs vertically in these pictures pops off the pivot point easily (too easy?) when I mess with it.


View attachment 70707View attachment 70708

Click to expand...

barely handy said:

I have a not-too-old Troy Bilt pressure washer powerd by a Briggs and Straton 175 engine. The throttle linkage is off, which results in a wonky idle and it not reving when I pull the trigger. Having searched for pictures of the linkage online and found none, I'm turning to this forum for some help. Can anyone guide me to figuring out what is wrong here, please? The arm that runs vertically in these pictures pops off the pivot point easily (too easy?) when I mess with it.


View attachment 70707View attachment 70708

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It appears that the spring on the right side of the photo is binding on the carb lever.