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Mower runs fine until I put a new air filter on, then it dies out. thoughts anyone?

#1

Thomas57

Thomas57

Mower runs fine until I put a new air filter on, then it dies out. thoughts anyone?
Sat for a few years, had the carb cleaned, oil changed etc. Didn't have the a new air filter when
it was worked on, but it was demonstrated to be working. Got a new filter but mower dies, without the filter it starts and runs ok.


#2

I

ILENGINE

Lets start with the model number of the mower as well as the model number of the engine so we can see what setup you are working onl


#3

B

bertsmobile1

Welcome Thomas.
Nothing would make me happier than to help you to get your mower running like a top.
However the Covid - 19 virus have affected my ESP so I can not quite work out which mower & what engine you have.
So telling you to turn the carburettor poppet around so the C lines up with the spray tube might not be much help.


#4

Thomas57

Thomas57

Sorry for the lack of info. New to this forum.
Troy Blit tuff cut 230
Briggs & Stratton 6.75 HP

Also the carb was changed out to one that does not require priming.

Thx


#5

Thomas57

Thomas57

Troy-Bilt Tuff cut 230 6.75 HP
Mower # 549
Engine # 80289 Briggs & Stratton 6.75 HP


#6

I

ILENGINE

Thomas57 said:
Sorry for the lack of info. New to this forum.
Troy Blit tuff cut 230
Briggs & Stratton 6.75 HP

Also the carb was changed out to one that does not require priming.

Thx
Click to expand...
So you went from a primer type carb to one that should have a choke. How is the choke being opened since that would require different hardware to make it work.


#7

dougand3

dougand3

You still haven't posted the engine model #....eg: 126M02-1525-F1. Probably on the shroud above the muffler.


#8

Thomas57

Thomas57

ILENGINE said:
So you went from a primer type carb to one that should have a choke. How is the choke being opened since that would require different hardware to make it work.
Click to expand...
it was sitting for a few years and would not start. I had someone come to repair it. The cup on the carb was rusted and had a hole on it, and other problems, he took a carb off from another mower he had in his truck (no idea, what type of mower) and changed it out from mine and told me it needed no priming. The filter was dirty, and he said just get a new filter. I did, but as I said when I put the filter on it dies out.


#9

Thomas57

Thomas57

You still haven't posted the engine model #....eg: 126M02-1525-F1. Probably on the shroud above the muffler.

125KO9-0266-E1 04031658


#10

I

ILENGINE

The parts diagram shows that this engine should have a choke that operated by position of the throttle cable. Not a primer, but since we don't know what the guy put on it, the carb that he installed may be jetted too rich for that engine and air filters cause some restriction resulting in a rich mixture if already running rich.


#11

Thomas57

Thomas57

The parts diagram shows that this engine should have a choke that operated by position of the throttle cable. Not a primer, but since we don't know what the guy put on it, the carb that he installed may be jetted too rich for that engine and air filters cause some restriction resulting in a rich mixture if already running rich.

the mower still has the primer button on it. I can take a picture of the new carb if that helps, but is there any solution if running too rich?


#12

Thomas57

Thomas57

ILENGINE said:
The parts diagram shows that this engine should have a choke that operated by position of the throttle cable. Not a primer, but since we don't know what the guy put on it, the carb that he installed may be jetted too rich for that engine and air filters cause some restriction resulting in a rich mixture if already running rich.

is there anyway to correct for the mixture?
Click to expand...


#13

I

ILENGINE

Thomas57 said:
The parts diagram shows that this engine should have a choke that operated by position of the throttle cable. Not a primer, but since we don't know what the guy put on it, the carb that he installed may be jetted too rich for that engine and air filters cause some restriction resulting in a rich mixture if already running rich.

the mower still has the primer button on it. I can take a picture of the new carb if that helps, but is there any solution if running too rich?
Click to expand...
Take a picture of the air filter housing with the primer bulb and also the carb. Both from the front and from the top so we can see the linkages and other controls.


#14

StarTech

StarTech

IL you must be looking at a different IPL the one I get from Briggs show that a Primer, Choke, or Auto Choke carburetor was use on those 125K09 engines. On those the fuel bowl are aluminum therefore can not rust but can corrode thru in places from water.

So just randomly put a carburetor from another is a bad idea.

A couple things to check too are that intake tube has an o-ring on it between the carburetor and the intake tube. The thing is check the whole plastic intake tube for a crack. Plus when installing the new primer carburetor make it mates fully with the primer/air cleaner base. These are prone to warping from age, heat, and over-tightening.


#15

I

ILENGINE

StarTech said:
IL you must be looking at a different IPL the one I get from Briggs show that a Primer, Choke, or Auto Choke carburetor was use on those 125K09 engines. On those the fuel bowl are aluminum therefore can not rust but can corrode thru in places from water.

So just randomly put a carburetor from another is a bad idea.

A couple things to check too are that intake tube has an o-ring on it between the carburetor and the intake tube. The thing is check the whole plastic intake tube for a crack. Plus when installing the new primer carburetor make it mates fully with the primer/air cleaner base. These are prone to warping from age, heat, and over-tightening.
Click to expand...
I may of typed in an incorrect number the first time I tried to look up the diagram. Looks like all three systems were used on the engine. Can't mix and match parts, So I suspect incorrect carb not working with the other components.


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