63-70 Tr6 Basic Repairs

Discussion in 'Technical Help' started by Tratch, Oct 9, 2021.

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  1. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #61 Tratch, May 13, 2022
    Think the mount strap was bent out of shape, nipped it up and it’s sorted.

    Wonder if you guys could help with a couple more quick noob fixes.

    1. In the rear axle image below, is that the correct order for those items?

    2. Is that the wrong replacement link for the chain right? What spec do I need?

    5701DE57-7756-43FF-A23E-6194236038C7.jpeg

    8DDEC55A-CE03-4F52-B5D5-381BDB9DC428.jpeg
     
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  2. darkman

    darkman Crème de la Crème

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    #62 darkman, May 13, 2022
    Stepped spacer goes on the left for drum back plate to bearing and longer spacer goes in the right for speedo drive and the thin nut and a washer you don't have holds the speedo dive on with big nut on outside, 530/5/8th is rear chain size.
     
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  3. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #63 Tratch, May 13, 2022
    Last edited: May 13, 2022
    Stepped spacer sits inside the frame or inside the drum brake?

    I do have the large washer but I think I’m missing the Speedo drive altogether!
     
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  4. darkman

    darkman Crème de la Crème

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    #64 darkman, May 13, 2022
    The stepped spacer goes between the back plate and wheel bearing inside of hub and the spacer nut goes on the outside of the back plate between brake back plate and swing arm.
     
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  5. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #65 Tratch, May 13, 2022
    Ok! I have no speedo drive at the rear hub / axle - does that change things? The cable from the speedometer disappears inside the gearbox from underneath. I’m not sure it ever worked though.

    That said, is everything now correct in the photos? I assume the outermost nuts should sit outside the swingarm and everything else sits inside it?

    E3BCB865-D60F-4DF9-BD72-58E214A790D3.jpeg

    FD5A95C8-4657-4B4F-A80B-F251B8802D72.jpeg

    AC82A8C1-D35B-4D6A-BC22-D970DFDC5E77.jpeg
     
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  6. darkman

    darkman Crème de la Crème

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    #66 darkman, May 14, 2022
    Last edited: May 14, 2022
    That's correct, if your speedo cable goes to the gear box its a 63-65 gearbox middle cover as 66 and later bikes had the speedo drive on the rear wheel. That is a 66 and later wheel as the early bikes never had the extra speedo drive on the hub as they used a different dust cover and spacer, below is a pic of my TT with no speedo drive. You could either fit a speedo drive and use the wheel you have, find the correct hub and spacers or make a dust cover for the wheel you have and a washer of the correct thickness as that would work ok.

    20220110_121759.jpg
     
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  7. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #67 Tratch, May 14, 2022
    Last edited: May 14, 2022
    Thanks! Yeh this bike is a bit of a mutt - the V5 says it’s a ‘63. I think you pointed out before it has a ‘68 front end in the past.

    Should I retrofit the wheel based speedo? Is it better?
     
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  8. darkman

    darkman Crème de la Crème

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    #68 darkman, May 14, 2022
    Your cheapest and best option is to fit a speedo drive to the rear wheel with the correct longer cable.

    20220110_121014.jpg
     
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  9. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #69 Tratch, May 14, 2022
    Ace. I’ll order that up. I’ll need:

    1 x Speedo drive
    1 x long cable
    1 x large axle washer (retain speedo drive)

    And finally (sorry) on the left side the swingarm sits like so?

    F537FBFF-810C-477F-BF0A-2D3163265743.jpeg
     
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  10. darkman

    darkman Crème de la Crème

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    #70 darkman, May 14, 2022
    Correct, don't forget an adjuster goes on each side as well as in my pics :)
     
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  11. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #71 Tratch, May 14, 2022
    Yeh got those clean and ready lol!
     
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  12. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #72 Tratch, Jun 19, 2022
    Last edited: Jun 19, 2022
    Hi all.

    Small update (and more questions lol).

    Decided to do a full ignition system overhaul so went with a Pazon system and two new 6V Lucas coils.

    83D0ADF9-3C46-4BC8-AF42-35196948A23A.jpeg

    The existing coils look like 12V Bosch and actually tested as fine. Apparently 6V in series are preferred…

    E8A4278B-BE81-4519-B936-69509E104BC8.jpeg

    Question: The crank / cam rotor thing that shows timing marks - there are two present that are 180d apart. When aligned with the timing pointer do these indicate TDC or 38d BTDC? And I assume the one is BDC?

    356E8C26-A417-405C-93B7-562E61EA92B4.jpeg

    To further complicate things, one has a marking (circled) showing the number 26 85???

    I’ll check using the threaded TDC tool but don’t have a degree wheel. Thoughts welcome.
     
  13. darkman

    darkman Crème de la Crème

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    #73 darkman, Jun 19, 2022
    Two 6 volt are req with Pazon but 12 volt ok with Boyer, if you take the nut off the end of the rotor you can see a woodruff key slot and that is the marker you use :) that line/marker when lined up with the pointer on the cover is 38 DEG BTDC :)
     
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  14. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #74 Tratch, Jun 19, 2022
    Last edited: Jun 19, 2022
    :laughing:
    So no need for the TDC tool or timing wheel I just bought then :p
     
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  15. darkman

    darkman Crème de la Crème

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    #75 darkman, Jun 19, 2022
    Yes as the marks can be a mile out lol, always nice to have the correct tools, i had to check out the cover marks with a mate as i never use them myself.
     
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  16. speedrattle

    speedrattle Senior Member

    Feb 19, 2021
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    #76 speedrattle, Jun 20, 2022
    yes

    use the tools yourself. the factory people were by necessity skilled in making do and you will never go wrong checking by the numbers what they would casually do by eye and with experience.
     
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  17. Tratch

    Tratch Active Member

    Jul 11, 2013
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    #77 Tratch, Aug 28, 2022
    Last edited: Aug 30, 2022
    Hello all. At the finish line just fitting new coils and a Pazon system. I need to know what these white wires do as they were wired into the Iris ignition. I think my bike is POS GROUND so I’ve placed my POS meter in one of these and the NEG on the engine head. I get around 9V with the ignition on and next to nothing with the ignition off.

    Any help with how you correctly measure those wires and what they should show would be welcome.


    CB358933-874B-4F26-988C-FFDCA0EF0385.jpeg

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    86D88FD1-FB77-49D3-BA2F-8F1FAB57917B.jpeg

    12AF9EDE-C05E-4826-B4E1-CFF64ADFE9A6.jpeg
     
  18. darkman

    darkman Crème de la Crème

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    #78 darkman, Aug 28, 2022
    With the brown blue trace wire from the Neg terminal of battery and red Pos going to earth as in your pics the white wires are ignition feed and should show around 12 volts with a good battery with ignition on.
     
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  19. RonaldWells

    RonaldWells New Member

    Jul 19, 2023
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    Tukwila, WA 98168
    #79 RonaldWells, Jul 19, 2023
    I did everything as you said, it worked! Thank you:)
     
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