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Garden Tractors Discussion Forum

Gravely Tractor

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Farmall Bob

02-25-2013 16:35:22

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I have been working on (3) Gravely Tractors, and have (1) working to throw snow. (1) my oldest is/was disassembled complete, and near finished, and the parts Gravely near finished. The parts Gravely I tried to start, but it will not stay going. Checked spark and it was orange, timing rechecked, it is getting gas, and the plug gets wet. Can anyone tell me what I may have over looked? Thank you.

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joe csuti

02-26-2013 02:59:27

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 Re: Gravely Tractor in reply to Farmall Bob, 02-25-2013 16:35:22  
If this is an L series walk behind goto link below(site has changed)click on manuals on right side of pg,from sub catogory pick walk behind,problem could be carb which others have said,depending on mod of zenith carb,some had a poppet valve in carb body,if this valve stuck open/closed it can cause problem you have,problem could also be in ign system or a combination of both,check at site & see if a service manual listed your mod carb & make/mod mag on eng.

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El Toro

02-25-2013 19:04:35

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 Re: Gravely Tractor in reply to Farmall Bob, 02-25-2013 16:35:22  
Pull off the plug wire and hold it away from the plug about 1/4" while a helper cranks over the engine. Should see a hot blue spark. Your coil may be getting weak. Hal

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Farmall Bob

02-25-2013 23:27:56

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 Re: Gravely Tractor in reply to El Toro, 02-25-2013 19:04:35  
Hi Hal,
I thought that I read somewhere the spark was suppose to be a strong blue. Will let you know how it turns out. Thank you.

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ray hofstetter

02-25-2013 17:20:55

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 Re: Gravely Tractor in reply to Farmall Bob, 02-25-2013 16:35:22  
Plug wet after it quits? Too much gas flooding it out....check that the choke is opening and/or carb float...

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Farmall Bob

02-25-2013 23:34:49

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 Re: Gravely Tractor in reply to ray hofstetter, 02-25-2013 17:20:55  
Hi Ray,
It starts, but seems as though I have to choke it to keep it going. Then once it starts it will only stay going at the most (3) seconds. I do take the choke off. Thank you for your response.

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02-26-2013 06:06:26

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 Re: Gravely Tractor in reply to Farmall Bob, 02-25-2013 23:34:49  
Gravelys take awhile to warm up to operating temperature before they will run well without the choke in cold weather. That's true even on the best tuned up machine. Try leaving the choke on about half way for a little while.

Make sure your main jet adjustment isn't too rich. Do you have the cast iron or aluminum Zenith?

Ben W.

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Farmall Bob

02-26-2013 10:24:51

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 Re: Gravely Tractor in reply to SuperABen, 02-26-2013 06:06:26  
Hi Ben,

I am in a heated garage, and will be working on it soon again. First thing will be to check that magneto coil, and make sure it has the proper ohms, and check out tha condenser. Thank you.


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