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Member's Restoration & Rebuild Projects Details of member's own projects.

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Old 08-22-2009, 05:53 PM   #1 (permalink)
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1969 T120 rebuild questions

I picked up a project bike, PO took it all apart and was rebuilding as a bobber, seems to have done a fine job too... bike looks great, but still needs lots of work... ( will post pic asap ).

I got some questions related to fluids & ignition, if anyone can help.

i picked up a service manual as well.

so question about fluids... regular unleaded gas work? what kinda of motor oil and gear oil etc is necessary?

it's a coil/points previous setup, what is a boyer ignition do? worth the money? haven't even tested the coils/points yet... the bike prety much has no wires at all today... not even a battery box, i think the PO planned to use magneto thingy...
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Old 08-22-2009, 06:04 PM   #2 (permalink)
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attaching pic.
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1969 T120 rebuild questions-img00017.jpg  
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Old 08-22-2009, 08:00 PM   #3 (permalink)
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I use mid-grade Chevron or Valero gas, Castrol GTX 20/40, and Sparx electronic ignitions.

You can always use a very small AGM or gel-cell battery, and a 3-phase Sparx alternator is preferrable to the others.
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Old 08-22-2009, 10:56 PM   #4 (permalink)
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it has a alternator of sort in it already right? for charging the battery?

can you shoot me some part numbers for this sparx stuff.
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Old 08-23-2009, 12:20 PM   #5 (permalink)
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Old Lucas alternators ALWAYS cause greif when folks convert to electronic ignitions.

They are not worth attempting to re-magnetize, when the output is barely nominal at cruising speed; all power has to come from the battery when idling and running slow around town.
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Old 09-27-2009, 03:58 AM   #6 (permalink)
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I'm getting ready to pick up a 69 project from a fellow, all the motor needs is ignition. I'm hearing that joe hunt magnetos, although expensive, are worth the money. I'm still a bit confused, however, about what all running a magneto entails. What other hardware do you need to function, battery? coils? voltage regulator?
I'm an idiot when it comes to electronics, I would like to have as little as possible.
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Old 09-27-2009, 09:10 AM   #7 (permalink)
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Hi Parker,

The joe hunt magnetos have a good reputation but as you say they are expensive (around $750 - $800) This is all you need for your ignition system.
However to run your lights, horn etc. you will still need an alternator and voltage regulator, a battery is not necessary .
If you were to go down the standard route with new coils, electronic ignition, new alternator, a voltage regulator and (if you want) a battery. it would cost you about half the price of the joe hunt. It's still a very simple system, even an idiot (like me ) can wire one up!

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