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  1. Replies
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    Views
    134

    The low output regulators are not low Amp, they...

    The low output regulators are not low Amp, they are low voltage. An alternator system will only supply the amps needed, up to its limit of output. Operating a battery system at lower voltage is what...
  2. Replies
    10
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    134

    The small 12V battery that I have used is the...

    The small 12V battery that I have used is the RTX7L-BS size, because it is available as an AGM style. And it fits the FX battery box as well. BUT, I don't get much life out of the brand I have tried...
  3. Replies
    14
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    134

    D, we are of the same age and similar experience....

    D, we are of the same age and similar experience. Easy to get cornfused about this old stuff.

    I think they abandoned the design because it robbed some of the vacuum under the pistons (with...
  4. Replies
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    134

    Ah, then you know that no top end oil returns...

    Ah, then you know that no top end oil returns FROM the cylinder base TO the tappet blocks, but it's the other way around. Has to be. The hole in the cylinder base is just into the bore. Oil cannot...
  5. Replies
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    134

    Think about where the line into the cylinder base...

    Think about where the line into the cylinder base goes. You are thinking about it backwards. Not my first rodeo either.

    Jim
  6. Replies
    14
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    134

    The oil lines from the cylinder base to the...

    The oil lines from the cylinder base to the tappet blocks do not drain oil into the cam chest. Quite the opposite, they drain oil from the pushrod tubes into the flywheel cavity. That was to address...
  7. Replies
    25
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    267

    I rebuilt an XL "mountain motor" last year. It...

    I rebuilt an XL "mountain motor" last year. It was a total clusterfuck. I told the owner to put an S&S big bore kit on it and be done with it, but nooo.... had to do it the hard way. Custom pistons...
  8. Replies
    25
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    267

    About the only thing you can get from Axtell...

    About the only thing you can get from Axtell these days is some rings, and maybe some standard bore pistons, maybe. I think Ron is retiring, or retired.

    Jim
  9. Replies
    25
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    267

    That 3 13/16 bore stuff is pretty much an orphan...

    That 3 13/16 bore stuff is pretty much an orphan nowadays.

    Jim
  10. Replies
    25
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    267

    HaHa. My bet was that the fittings/ hoses hit the...

    HaHa. My bet was that the fittings/ hoses hit the case.

    Jim
  11. Replies
    25
    Views
    267

    Oil filter mount bottom bolt miss the hole?...

    Oil filter mount bottom bolt miss the hole? Mock-up pic?

    Jim
  12. Replies
    25
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    267

    NICE! Jim

    NICE!

    Jim
  13. Replies
    25
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    267

    The slight vertical lines will show up where the...

    The slight vertical lines will show up where the ring gaps are in fresh cylinders, after you turn the motor through a few times. No big deal.

    My take, based only on your description (of course):
    ...
  14. Replies
    2
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    75

    I'm not a fan of belt drives, but the simple,...

    I'm not a fan of belt drives, but the simple, open belt drives that use the original old style clutch are cost-effective (if you have an old style clutch). Next up would be a BDL, with one of their...
  15. Replies
    16
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    205

    10:1 would be good. Stock is 9:1, with the .015...

    10:1 would be good. Stock is 9:1, with the .015 head gasket.

    Jim
  16. Replies
    16
    Views
    205

    Check Cooldean's thread for a discussion of...

    Check Cooldean's thread for a discussion of gouged up XL cylinders. Your cylinders can be safely bored to +.070.

    The stock P cams, which your motor should have, are actually pretty good. The...
  17. Replies
    29
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    424

    One easy way to diagnose a failed/ failing...

    One easy way to diagnose a failed/ failing bearing in an H-D motor is to examine the piston skirts. Particles embedded in the skirt are evidence of a bearing coming loose somewhere.

    From your...
  18. Replies
    2
    Views
    75

    3rd question first: Any alternator shovel motor,...

    3rd question first: Any alternator shovel motor, '70 - '84, is a bolt-in swap. The generator shovel motors could also be used, with the open belt drive, with an offset motor pulley being the only...
  19. Replies
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    76

    If you mean that the clutch is engaging, the...

    If you mean that the clutch is engaging, the steels may be rusty. You may also have a problem with the release bearing, and if you have a foot clutch, the early style bearing is preferred, almost...
  20. Replies
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    424

    Part of this explanation is spot-on and part of...

    Part of this explanation is spot-on and part of it is full of shit.

    Yes, if the rod rollers on one side of the rear rod go bad, that will cause a side thrust at the top of the rod, and that will...
  21. Thread: Magneto help

    by JBinNC
    Replies
    5
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    166

    You need to change the gear in the motor. S&S...

    You need to change the gear in the motor. S&S uses a set of gears to drive their timers backwards so that electronic ignitions designed for cone motors will function correctly in their timer...
  22. Replies
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    424

    If the wristpin clip has come out, you cannot...

    If the wristpin clip has come out, you cannot continue to run it. The wristpin will continue to gouge the cylinder wall, which is already damaged as your pic shows. You will also have pieces of the...
  23. Replies
    29
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    424

    It appears from your pic that your motor has been...

    It appears from your pic that your motor has been fitted with the later 1000cc cylinders (and of necessity, the heads to match). This is a common upgrade for the '72s and '73s, for the reason D....
  24. Replies
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    424

    That gouge is caused by a loose wristpin...

    That gouge is caused by a loose wristpin retainer, and the subsequent loose wristpin.

    It is possible that this damage was done previously, and a new piston fitted. You need to remove the cylinder...
  25. Replies
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    78

    23/48 is definitely doable. My FXWG, with box...

    23/48 is definitely doable. My FXWG, with box stock evo is running that ratio, with the FXE gearset.

    If you make the front sprocket large, the chain will eat into the inner primary and starter...
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