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  1. Replies
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    Yes, pan cases from '58 (I think) do not have the...

    Yes, pan cases from '58 (I think) do not have the cradle and strap for the generator. On those, the hole in the case for the generator is a closer fit and serves to position the generator. And the...
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    He has a cone motor, so that should not be an...

    He has a cone motor, so that should not be an issue.

    You are dead right about the timers. I think the end float spec is something less than ten thou, and a sloppy one will play havoc with the...
  3. BEST, and safest way is to pressurize the intake...

    BEST, and safest way is to pressurize the intake manifold (10 psi or so) and use soapy water. Of course that requires removing the carb and making a block-off plate with air fitting.

    Jim
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    ^^^^ Seen a few? ...

    ^^^^

    Seen a few?

    ^^^^^

    Jim
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    Almost always a vacuum leak causing the motor to...

    Almost always a vacuum leak causing the motor to run a little lean and overheat the exhaust valves. Hot exhaust valve galls the stem and guide, and stuck.

    Jim
  6. Replies
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    Perfect. Jim

    Perfect.

    Jim
  7. Replies
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    398

    On the generator motors I try to save the old...

    On the generator motors I try to save the old points if possible because there is little of quality out there for a replacement.

    Jim
  8. Replies
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    The Dyna S gives a consistent spark down to zero...

    The Dyna S gives a consistent spark down to zero rpm. It is more consistent and dependable than points any day, and all the more so these days when condensers are hit or miss quality wise. The fuel...
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    Yep, we ran two Dyna S, stacked, on our Pro Drag...

    Yep, we ran two Dyna S, stacked, on our Pro Drag fuel bike, up to '06 (when I retired from that fun).

    Jim
  10. Replies
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    From the manual: the drum brake swingarm is 9.12...

    From the manual: the drum brake swingarm is 9.12 - 9.18 " inside measurement. If you are going to use your '66 - '72 drum brake assembly, that is the measurement for your rigid frame conversion. The...
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    If you want to use the drum brake assembly in its...

    If you want to use the drum brake assembly in its entirety, you need to make the frame width the same as the drum brake swingarm (whatever that is). Otherwise, you have to make not only spacers, but...
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    Should be a 12014 seal, common to all four...

    Should be a 12014 seal, common to all four speeds, unless I'm missing something.

    Jim
  13. Thread: What coil?

    by JBinNC
    Replies
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    87

    For a points and coil ignition, you want a 5 ohm...

    For a points and coil ignition, you want a 5 ohm coil. A 3 ohm coil draws too much current and that burns points.

    The Dynatek coils have always been good, and I also use & sell the Andrews 5 ohm...
  14. Replies
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    Timing your Dyna S PROPERLY is very easy. About...

    Timing your Dyna S PROPERLY is very easy. About what you did before, but use the advance mark on the flywheel (and be sure to identify it correctly). Then, with the switch on, turn the ignition...
  15. Replies
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    398

    I think that the Dyna S is THE best ignition for...

    I think that the Dyna S is THE best ignition for kick-start Harleys (I've even got one in my evo that I kick regularly). But, you do have to service the mechanical advance unit regularly (maybe...
  16. Replies
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    398

    Each one of these motors is different, but cold...

    Each one of these motors is different, but cold cranking should be the most straightforward. You did not mention the type of carb or ignition.

    Could the valve adjustment cause this? Yes, I've...
  17. Replies
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    www.vintagemachinery.org has some manuals and...

    www.vintagemachinery.org has some manuals and other information. Go to the manufacturers index and click Sunnen.

    Jim
  18. Replies
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    I have never been able to find one for my...

    I have never been able to find one for my machine. Your best bet is to go to the Sunnen website and read the material available on honing, and that information is extensive.

    Jim
  19. Replies
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    141

    Those are top end oil return lines. Most often...

    Those are top end oil return lines. Most often they are used on motors with big bore cylinders, where the cylinders do not have oil return passages like the factory H-D cylinders and S&S cylinders...
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    The four speed doesn't hold a candle to the five...

    The four speed doesn't hold a candle to the five speed. The worst of it is that your motor has the alternator in (or behind) the clutch shell, and that has proven to be less than reliable and...
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    Get two. You will probably break the first one. ...

    Get two. You will probably break the first one.

    Jim
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    Hope you bought it! Jim

    Hope you bought it!

    Jim
  23. Replies
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    HaHa. Standard Harley case. Jim

    HaHa. Standard Harley case.

    Jim
  24. Replies
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    If it's a runner and the bottom end is sound, you...

    If it's a runner and the bottom end is sound, you could do a top end rebuild, including cam and tappets, and have a motor that may well make tens of thousands more miles. It all depends on how it was...
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    That looks very similar to mine. Early, no gauge...

    That looks very similar to mine. Early, no gauge on the spindle. The ID gauge mounted to the right of the motor, if included in the deal, is worth more than the machine itself.

    Jim
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