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help needed, Woods ZTR fails to run


ebohatch's Avatar
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04-29-14, 12:38 PM   #1  
help needed, Woods ZTR fails to run

I have an older (92 or 93) Woods Zero Turn Mower. Good unit had it for about 3 years. Last fall I put Stabill in the tank and ran it for a bit.
I went to start it and it turns over nicely but won't run.
If I squirt carburetor cleaner into the carb it will catch for a moment and then die.
I checked the gas line, checked that the fuel pump is working. Drained all of the gas out of the tank, took off the top of the carburetor, sprayed carb cleaner through the float valve, sprayed through the other port, everything did not seem clogged. Drained all of the gas out of the carb. Put freshly purchased non-ethanol gas in the tank. Checked the oil level.
Still will turn over nicely, again when I give a shot of carb cleaner down the throat the engine will catch but will quit after 2 or 3 seconds. Checked the bowl and it was full of gas again.
What am I missing.
The engine is a B & S Vanguard V-twin Model # 350447, type 0118-01 4973 code 93102711

 
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04-29-14, 02:41 PM   #2  
Sounds like the carburetor needs more cleaning. I think your main jet is clogged.


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04-29-14, 04:33 PM   #3  
Needs to be removed and completely disassemble to be cleaned properly.

 
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04-29-14, 07:08 PM   #4  
I agree but cannot find any info on the carb on my unit. All the things I find look like a small carb for a single cylinder engine. Where is the main jet?

 
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04-29-14, 07:53 PM   #5  
Find carburetor schematic here;

Illustrated Parts List

This is for the engine numbers you listed.

RR

 
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04-30-14, 01:13 PM   #6  
Thanks for the responses and for the link to the parts list.
Using that I was able to locate the main jet, removed it, cleaned it and the port out.
But the same problem, it will start quickly when i spray the carb cleaner into the throat but last for about 2 seconds and dies.
Did I miss something, I have taken it apart but it continues to not run.

How far should the main jet be backed out, as I remember from other small engines it was usually about 1 1/2 turns.

 
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04-30-14, 08:25 PM   #7  
That's not the main jet, that is the idle circuit. The main jet is fixed, non-adjustable. It is behind the drain plug on the carb.


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05-01-14, 01:03 PM   #8  
cleaned it out again, got my air hose out there and blew through every possible hole I could find.
still same problem, any other suggestions??

 
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05-01-14, 09:21 PM   #9  
The main jet is clogged. You are going to have to clear it out or it will never run. Get some wire or go to lowes or somewhere like that and get a set of torch tip cleaners and clear out the jet.


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05-02-14, 07:02 AM   #10  
Refer to the illustrated parts list posted previously and locate part# 955B which is on outside of carb (a hex head plug). Remove it and see part # 117C screwed into the inner part of carb. Poke wire through 117C and then blow air through it. 117C is the main jet. This should clear the jet 117C and get the engine running again.

RR

 
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05-02-14, 10:10 AM   #11  
Rough Rooster, THANKS
That helped a lot but on this mower (Woods ZTR) this has a fuel solenoid that I didn't understand.
Part 117C doesn't exist on this unit, the solenoid does it. I finally removed it and the hex plug (955B) and cleaned them both and flushed the innards out with carb cleaner and then air.
It now works, except for the first try because I forgot to reconnect the gas line

THANKS to all who responded, this helped me a great deal, now to catch up on mowing the acreage.

 
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