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Jubilee starting peculiarity

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buckeyemac

06-14-2017 18:23:38




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I am a relative newby with tractors. My Jubilee (recently purchased and they had problems starting it at sale)runs great when started. It usually does not start while pressing the starter button. It starts the moment the starter button is released. What is going on and how can I correct it? Thx.




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Dean

06-15-2017 13:18:42




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
Classic symptom of weak spark.

Insufficient information to diagnose further.

Dean



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WayneIA

06-15-2017 08:21:17




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
A 6 volt system should be positive + ground. Make sure and hook the wire from the ignition switch to the (-) side of the coil and the wire from the distributor to (+) side of the coil. I Know!! I know, I doesn't make any difference. But if your connections are not up to sniff and the starter is tired, it might make a difference. I know for a fact it DID make a difference on two different Farmalls.

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Buckeyemac

06-15-2017 07:43:17




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
Thx. It ia a 6 volt system



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rvirgil_KS

06-15-2017 06:34:36




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
original 6 volt, or 12 volt alternator conversion?

If a 12 volt conversion it has too much resistance between coil and switch. You can use a direct 12 volt coil such as NAPA IC14SB or equivalent and no extra resistor. Coil should be marked "12 volt, no external resistor required" It should have about 3 ohms resistance across + and - posts.

Or if it has a 6 volt coil or one marked "12 volt, external resistor required" check your resistor. Resistor should be near equal to the 1 1/2 ohms across + and - of coil. I have seen several cases of alternator conversion kits being supplied with a resistor that is too high in resistance and causes your described problem

I've also seen cases where the resistor was installed with the direct 12 volt coil.

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showcrop

06-15-2017 04:18:11




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
Buckeyemac, you problem is not peculiar, it is a very common one. It is very common here at YT for a new poster to claim that their connections are clean when they are not shiny clean.



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buckeyemac

06-15-2017 04:40:56




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 Re: Jubilee starting peculiarity in reply to showcrop, 06-15-2017 04:18:11  
Thanks. Will start cleaning.



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Larry NCKS

06-14-2017 21:36:16




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
I agree with Royse. If a 6 volt system (and others) is slightly out of shape, it takes too much electricity for cranking to have any left over for firing the ignition.



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old

06-14-2017 21:28:01




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
Try a hot wire from the ignition side of the battery to the ignition side of the coil. If it starts easy then the problem is from the coil back to the battery and could be a bad wire or poor connection etc



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buckeyemac

06-15-2017 04:42:56




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 Re: Jubilee starting peculiarity in reply to old, 06-14-2017 21:28:01  
Thx. Will try this. Does wire need to be removed after starting?



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old

06-15-2017 08:41:28




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-15-2017 04:42:56  
Hot wires is done with out using the ignition switch so it is hooked up to run and pulled off to kill the engine again



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Royse

06-14-2017 19:19:28




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
Most likely dirty electrical connections.

Cranking the starter takes so much power that the ignition can't

fire. As soon as you let up, the ignition can and does work.

What Sotxbill is referring to was implemented on later tractors.

I would agree with him except the Jubilee isn't supposed to have it.

Can you post a picture or diagram of your electrical wiring?

Cleaning connections is free.

A local starter shop will normally test the starter for free too.

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buckeyemac

06-15-2017 04:45:02




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 Re: Jubilee starting peculiarity in reply to Royse, 06-14-2017 19:19:28  
Thx Royce. Not to good with pics, but will try.



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sotxbill

06-14-2017 18:38:46




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 Re: Jubilee starting peculiarity in reply to buckeyemac, 06-14-2017 18:23:38  
Wrong starter solenoid put on it or the bypass ignition wire from the solenoid to the coil is not there or not working. the correct solenoid has a "post" that feeds the coil when in the start position.



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rvirgil_KS

06-15-2017 06:39:35




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 Re: Jubilee starting peculiarity in reply to sotxbill, 06-14-2017 18:38:46  
Bypass would have been used on some original 12 volt systems.

Jubilee was original 6 volt so would not have had a bypass. It would have had common 3 terminal solenoid.



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buckeyemac

06-15-2017 04:39:13




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 Re: Jubilee starting peculiarity in reply to sotxbill, 06-14-2017 18:38:46  
Found a picture of the four post solenoid in parts section of YT. Am really dumb about this. What wire goes where?



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