42" Murray idle air screw adjustment?

[JustinRaney]

Where should the fuel mixture screw be adjusted to not the one on the throttle plate? For 425001x8 murray mower.

 

[StarTech]

Model and type of the engine needed.

 

[JustinRaney]

Its the 17.5hp 2003/2004 murray 425001x8 42" riding mower briggs and stratton.

 

[Mark H_NO]

The Briggs motor should have an id plate with model and type.

 

[andrewslarge]

I believe I hade a 17.5 Enduro, but it was a Tecumseh engine?

What engine do you have?

 

[Auto Doc's]

Where should the fuel mixture screw be adjusted to not the one on the throttle plate? For 425001x8 murray mower.

Murray does not build the engines

Where should the fuel mixture screw be adjusted to not the one on the throttle plate? For 425001x8 murray mower.

The engine build information is stamped in the valve rocker cover or the fan shroud.

 

[Forest#2]

This link will help you get the info needed.
read it at least twice

A

Thread 'The big disconnect. SEPERATE MACHINE AND ENGINE INFORMATION IS NEEDED! We are not mind readers'

Jun 14, 2026

As usual, we are getting a rash of posts on this site from people who can never bother to provide the basic information needed for many of us to help them.

Basic information includes: The machine product ID numbers off the label for the machine along with the engine number information.

Note: The machine builder does not make the engines.

Yes, I know this has been brought up many times, but I will repeat it as needed.

Why am I wasting my 50+ years of experience only to be disrespected and seemingly taken advantage of to help others for free?

I get it, I'm a "nice guy" who works for...

• Auto Doc's
• Replies: 33
• Forum: Pro Talk

• 

 

[JustinRaney]

believe its the lp115 carb? for the 17.5hp briggs and straton engine.

 

[Auto Doc's]

eBay is your friend:

https://www.ebay.com/itm/388157398661?_skw=17.5hp+tecumseh+engine&itmmeta=01KV7FSTCKT3R8CEWK20H6TC2H&hash=item5a5ffbde85:g:Q-MAAOSwWtVn5kHO&itmprp=enc%3AAQALAAAA0GfYFPkwiKCW4ZNSs2u11xBBzD1yV8AVo8SdwfdOE6V12LEKYQSmcncxpFw5RbfnMJW7DKCo29SsXUMSoDUJvsFzWMy5fYiD%2FUDHPhh%2BvEMjjR2tS0dimwzWgra7VTTa%2FHgKuRJo3dc42rOgOx1uwZ1vvqmS6%2BpjLpWC%2FcnMhU2AeZEA4d8lXTNfShxMW8R4HwWA09W6egIgCjmhgDvthZWZ58fI7o5ezTWUhQNYaUD1S6191F%2BWOcQtawU%2BioapBfapQ2Ir8g89nC5BmH%2F1HHI%3D%7Ctkp%3ABk9SR9Km5-_ZZw

 

[StarTech]

believe its the lp115 carb? for the 17.5hp briggs and straton engine.

Will you stop being so damn stubborn and provide us with the engine's model, type/spec, and date code off the rocker cover or decal. Note sometimes they get turned upside down. Otherwise we can't help you.

Or are you an AI fishing for info?