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JD 730 Gas problem

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Dick (IL)

08-04-2001 16:37:40




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An older neighbor, and fellow JD collector has a nice 730 gas that has been on his farm over 35 years. Last year he restored it (mainly cosmetic-didn't need much else). Some time after he finished it a problem developed. It starts and runs fine, but after a few minutes it will die, and won't start again until it sets for a bit. And this is a continuous problem. I don't know much about 730s, but he did say he replaced the fuel shut off valve diaphram(s?). Anyone have any ideas as to where to look first to find out what the problem is? Thanx in advance.

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Dan(WI)

08-06-2001 09:44:08




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 Re: JD 730 Gas problem in reply to Dick (IL), 08-04-2001 16:37:40  
I had the exact same problem with my 63' JD1010 gas tractor. I had installed a in-line gas filter and I think air was getting trapped in the filter cutting off the flow of gas. The filter was brand new, so I know it wasn't plugged. I removed the filter and replaced it with a piece of rubber hose and I haven't had the problem since.



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Dick (IL)

08-05-2001 11:04:04




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 Re: JD 730 Gas problem in reply to Dick (IL), 08-04-2001 16:37:40  
Clooney and DP,
Thanks for the input, we'll start checking things out. The clear hose idea is indeed something to remember. Adios, Dick B



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DP

08-04-2001 20:27:13




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 Re: JD 730 Gas problem in reply to Dick (IL), 08-04-2001 16:37:40  
Hi Dick Just a thought. Make sure the coil and condenser arn't the problem. Either can cause that problem. The condenser is the cheapest to try first. If the coil is bad it can do that also. Good Luck to you. Don



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Clooney

08-04-2001 17:33:02




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 Re: JD 730 Gas problem in reply to Dick (IL), 08-04-2001 16:37:40  
Dick, there are many things it could be but start with fuel tank vent, it could be plugged or plugged off (try running it without the gas cap & see if it stays running). Then pull the plug on the bottom of the carb & install a barbed fitting & piece of clear hose about 1 foot long then wire the hose to something higher than the carb (don't plug the end of it, leave it open) then run the tractor & after it is running put a mark on the hose at the running fuel level, then see if the level is much lower just before it quits. If all ok there make sure the ignition coil has the same polarity as the battery (i.e. ,positive ground, positive post on the coil to the points). If all ok there replace the condencer if no help replace the coil if no help post back. One more thing, make sure the exhaust manifold heat valve is set to cold.

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Paul

08-05-2001 10:40:54




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 Re: Re: JD 730 Gas problem in reply to Clooney , 08-04-2001 17:33:02  
Clooney, I like your clear hose idea. I'm gonna remember that.



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Robert

06-16-2004 18:18:21




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 Re: Re: Re: JD 730 Gas problem in reply to Paul, 08-05-2001 10:40:54  
Check tank for rust. I have had three tractor tanks cleaned and coated and that ended my problems



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