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Jubilee ignition troubles

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mkuhns

10-01-2019 18:32:17




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I overhauled my buddy's Jubilee about 6 years ago. Put all new plugs, wires,condensor in at that point and ran fine until about 1 year ago. Replaced points, condenser, coil, plugs, etc again. Starts up cold, runs, let it warm up some, work it and spark starts fading watching a spark tester inline. Engine starts to miss and sputter and shuts off. Tractor is all original with 6 volt positive ground and generator. I checked polarity of coil with battery negative being fed from the switch and positive side going to the points. The generator charges, battery voltage is staying up to about 7 volts. I even put power directly to the coil, and made good engine ground back to the battery and still does the same thing. What's next to do? 12 volt conversion with pertronix electronic ignition? Any input welcome and thanks in advance!

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5 Forward

10-12-2019 11:11:01




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 Re: Jubilee ignition troubles in reply to mkuhns, 10-01-2019 18:32:17  
Acts like the ignition coil is going bad.



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showcrop

10-02-2019 11:22:19




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 Re: Jubilee ignition troubles in reply to mkuhns, 10-01-2019 18:32:17  
Quoting Removed, click Modern View to see

Virgil he said already that he put power direct to the coil.



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rvirgil_KS

10-02-2019 07:54:43




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 Re: Jubilee ignition troubles in reply to mkuhns, 10-01-2019 18:32:17  
1. Check points gap
2. Use good quality points
3. When it cuts out try a jumper wire across the switch, or jumper from hot battery source to coil input



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mkuhns

10-02-2019 16:55:55




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 Re: Jubilee ignition troubles in reply to rvirgil_KS, 10-02-2019 07:54:43  
Used napa and tisco points and condenser. Tried a jumper to coil and battery charger to increase voltage at coil to no avail. Who else make good points and condensors anymore that you can trust. So if I go with electronic ignition do I just need to install the pickup in the distributor and plug wires I believe? I can leave the 6 volt system intact?



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Alan8n

10-02-2019 20:34:55




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 Re: Jubilee ignition troubles in reply to mkuhns, 10-02-2019 16:55:55  
Yes you can leave the 6 volt system alone, I did. You add the pickup in the distributor and I also added a Flamethrower coil as well. If your plugs and wires are old you may want to change them as well but I don't think it's absolutely necessary.
I must stress that a good 6 volt battery is very important as the Pertronix requires a specific minimum voltage to work.
Again I made all of these changes 1 time and never messed with it again.
It is the single best improvement I made to both of my tractors. They both start with the first push of the starter button.
HTH
Alan

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showcrop

10-02-2019 04:54:01




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 Re: Jubilee ignition troubles in reply to mkuhns, 10-01-2019 18:32:17  
Condensers are frequently bad out of the box.



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Alan8n

10-01-2019 20:30:01




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 Re: Jubilee ignition troubles in reply to mkuhns, 10-01-2019 18:32:17  
I have both a 53 jubilee and a 52 8n. Both are 6 volt Pertronix. I got tired of messing with what ultimately turned out to be ignition problems and changing points condenser etc. Bought spark checkers, carried spare ignition parts as I don't live where the tractors are.
Decided to try Pertronix on Jubilee and then did the 8n.That was about 10 years ago and I can honestly say I have never messed with ignition problems again.
A good 6 volt battery is a must. I used the Optima Red Top and they have served me well.
Sorry I can't offer any suggesting on trying to fix your current problem though.
Alan

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