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Troy Bilt Lawn Mower not starting


jwwende's Avatar
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08-24-08, 01:39 PM   #1  
Troy Bilt Lawn Mower not starting

I have a Troy Bilt push mower with a Briggs motor which was starting but dying after not using for around 2 months. I flushed the old gas out of and took off the carburetor and applied Carburetor Cleaning solution to internal parts. No build up appears to be in the bowl or around the float. I also replaced the spark plug and applied a new air filter. I now cannot start the mower and also notice that the primer does not appear to be moving any gas through. Any suggestions?

 
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08-24-08, 01:43 PM   #2  
Model, type and code number off your engine please.

Have you tried to start it with a prime?

 
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08-24-08, 05:52 PM   #3  
Troy Bilt 210 Tuff Cut 6.5HP push mower. I have tried to start with prime and also applied engine starting fluid to see if that would work. Fuel line is slightly worn with a few cracks but no leaks are evident. Also when I took off carburetor I noticed gas was flowing thru line.

Model:
12A-466N063/700
Serial#:
1G102K11259


Last edited by jwwende; 08-24-08 at 06:09 PM.
 
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08-24-08, 07:44 PM   #4  
Please post the numbers from the engine, not the mower, they are usually on the metal shroud just above the spark plug. Have a good one. Geo

 
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08-25-08, 06:40 AM   #5  
Well I am betting that you have a Briggs engine. I would recheck the carburetor, particularly the bowl nut there are some orifices in this nut and you need to make sure they are clean and all are open.

As for the priming, there is a gasket between the air filter plate and the carburetor that must have a good seal in order for the primer to operate properly, so check this gasket and replace if needed.

There is also a seal around the intake manifold (O-Ring) make sure its in place when the carburetor is reinstalled on the engine or you can have an air leak, that may prevent the engine from starting or running properly.

Keep in mind that without the specific model number off of your engine, not all of this may apply.

 
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08-25-08, 06:46 PM   #6  
Numbers on the engine:
123K02-0196E1 02062859

Yes it is a B&S engine. O-ring around carb bowl appears worn and I cannot find any gasket around plastic air filter cover. The air filter is a paper/waffle brand so I assume blue lining should act as the seal. I'll take carb off again check the nut. I have been spraying Carb cleaning solution on the parts should I soak them in something else to be effective?

Thanks for the help, I'm really trying to fix on my own without taking to a shop which are backed up here for several weeks. Any help is much appreciated.

 
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08-25-08, 07:27 PM   #7  
Posted By: jwwende I cannot find any gasket around plastic air filter cover. The air filter is a paper/waffle brand so I assume blue lining should act as the seal.
I am not talking about the air filter itself, I am talking about the air filter base that is screwed onto the front of the carburetor. There is a gasket that seals the air filter base to the carburetor. The primer pulses pass through this area to push fuel up the main jet of the carburetor to prime the engine. A leak between the base and carburetor will affect primer performance.

 
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08-25-08, 07:52 PM   #8  
OK, I do not see any gasket there. So I assume it is either worn off or came off when I removed/replaced the air filter. I'll post photos tomorrow

 
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08-25-08, 11:53 PM   #9  
If it didn't even start with the shot of starting fluid, I'd say you have other problems like no spark possibly. Have you checked for spark?


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08-26-08, 05:30 PM   #10  
Photos showing lawnmower with air filter and carb:
http://www.flickr.com/photos/[email protected]/?saved=1

Can't do it tonight but I'll take carb apart again and provide more photos if that would help. Let me know. Again, I did install a new spark plug, not sure where to check for sparks.

 
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08-26-08, 10:26 PM   #11  
Take the plug out, connect it to the plug wire, and then position it so that the metal part of the spark plug is touching metal on the engine. Then have someone pull the pull rope while you watch for sparks at the electrode of the plug.


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08-28-08, 05:54 PM   #12  
OK, I have taken carburetor out again and cleaned gaskets and individual pieces. One question is how to reseat the needle valve? Any suggestions?

 
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08-28-08, 06:50 PM   #13  
If your talking about the inlet needle on thats on the float, the answer is you don't. There is a small viton seat in the carburetor, this can be replaced, but otherwise it's not servicable.

 
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