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41 9n won't start

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billy-bee

06-11-2000 10:37:01




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I just started rebuilding my 9n that's been sitting unused for 4 years. I rebuilt the carberater, fuel sediment globe, and distributer. I added new wires and spark plugs and a new battery. It still won't start! It turns over fine and gets a spark (kinda weak spark though). The timing seems to be right - I did the feeling for compression and watching the spark test. When I took a plug off to test for spark it wasn't wet and didn't really smell like gas. I put my hand over the air intake on the carberator and cranked the engine - there was lots of suction.

The only things I can think of are too weak a spark and thus I need a new coil. The only other thing is maybe the idling circuit on the carberator is screwed up.

any suggestions?

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big g

06-11-2000 18:41:53




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 Re: 41 9n won't start in reply to billy-bee, 06-11-2000 10:37:01  
Your description suggests two things... no fuel ...weak spark. Go for the fuel first. If you put your hand over the intake while cranking you should get a trickle of fuel to drip out of the carb. If not try a shot of starter fluid or fuel into the intake...good hunting



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Old Ag

06-11-2000 14:51:54




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 Re: 41 9n won't start in reply to billy-bee, 06-11-2000 10:37:01  
I've got a 41 9N, too. When I tried everything, and it still did not start. I broke down and got a new coil. Tractor started right up. 6V coils are about $40 at New Holland, but TSC sells em for $26. Good luck. Let us know what the problem was when you find it.



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Mark

06-11-2000 16:48:26




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 Re: Re: 41 9n won't start in reply to Old Ag, 06-11-2000 14:51:54  
I recently did the same thing to a 9n given to me that had been sitting around for 7 years. I found I had to clean out the gas line to the carb with a compresser( low pressure). Lots of junk in the bottom of fuel tank.



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Bob (KY)

06-11-2000 10:53:21




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 Re: 41 9n won't start in reply to billy-bee, 06-11-2000 10:37:01  
I know when my 2N sits that long I always had to pull it to get it started. Put it in 3rd gear and pulled it about 10 - 15mph. Make sure gas and ignition are on !!! After it starts and runs a while it usually starts pretty good after that.
Good luck
Bob



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Bob (KY)

06-11-2000 10:57:20




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 Re: Re: 41 9n won't start in reply to Bob (KY), 06-11-2000 10:53:21  
P.S. Be careful when pulling and be cautious. Keep chain/strap tight and use your head. DON"T pull downhill.



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billy-bee

06-11-2000 10:56:31




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 Re: Re: 41 9n won't start in reply to Bob (KY), 06-11-2000 10:53:21  
Mine can turn over with the starter. I don't think the problem is in the engine.



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Bob (KY)

06-11-2000 12:06:11




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 Re: Re: Re: 41 9n won't start in reply to billy-bee, 06-11-2000 10:56:31  
YEP !!! It'll turn over with the starter and won't start. I pulled it and got it started. Don't know why, but those old engines don't want to start after they set a while. Try pulling it, it can't hurt.
Good luck
Bob



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Fred OH

06-12-2000 10:09:52




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 Re: Re: Re: Re: 41 9n won't start in reply to Bob (KY), 06-11-2000 12:06:11  
Question: Why is it that a tractor will not start with the starter and will when you pull it?
Answer: Very simple, while you're cranking on it, it sucks the voltage down and there isn't enough left for coil to make spark and fire the engine. Try this once in a while, while cranking on it, (engine still whirling) let go of the starter button and if it takes ahold then, it's because you eliminated the big voltage user (the starter) and more voltage is now going to the coil to fire the engine. It's worked a lot of times for me, try it-you may like it. Don't forget to holler "thanks Fred" if it works for you.
L8R----Fred

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Bob (KY)

06-13-2000 20:58:05




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 Re: Re: Re: Re: Re: 41 9n won't start in reply to Fred OH, 06-12-2000 10:09:52  
Fred what you say is true. But with the 6 volt system on my 2N the starter doesn't turn the engine over with a lot of speed. That's why pulling it will work as you can get the engine turning faster for a longer period of time. I have used a 12 volt to jump the 6 volt and the starter will get more rpm's which usually helps. The big thing here is that the tractor Biily-Dee is talking about has been sitting a long time. From my experience there is not a battery made that will last long enough for the time it would take to start it. And if one was to try to jump it the cables, and probably the 6 volt battery, would get hot and burn up before that tractor would start. Even when you pull 'em it still may take a while before they fire and you still have to pull 'em a little more before they stay running. Some one with the right equipment could most likely get it started by cranking, but when you're poor like me ya just make do with what ya got.
Didn't mean to be so windy.

Happy Trails!

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