5twins's latest activity

  • 5twins
    Well, they are burning very clean, maybe too clean. lol. What you want to look at is the "smoke" or "mixture" ring. This is a dark ring...
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  • 5twins
    5twins replied to the thread Worn oil control rings.
    Well I'd say yes because they're so thin. I usually find them worn much more that the other two rings.
  • 5twins
    5twins replied to the thread Headlight issue.
    I see you're from Canada? Is your 650 a Canadian or U.S. model? I ask because the Canadian model is wired slightly differently and...
  • 5twins
    Now, that all being said, I'm thinking those 22.5 pilots may be too lean. Break-up and stumbling can be caused by either being too lean...
  • 5twins
    The air bleed holes down the sides of the VM22/210 pilot jets make no difference in the BS38 carbs because of how the jets mount down...
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  • 5twins
    5twins replied to the thread Headlight issue.
    Well, it seems I misspoke here. The headlight on-off switch sends headlight power back to the RLU and that sends it to the hi/lo switch...
  • 5twins
    5twins replied to the thread Headlight issue.
    No, I don't know the wire color off-hand, but checking a wiring diagram will tell you that. But it will be pretty easy to spot any wires...
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  • 5twins
    5twins replied to the thread Headlight issue.
    Well, the on-off switch sends headlight power over to the hi/lo switch in the left handlebar control, and that switch directs it to the...
  • 5twins
    5twins replied to the thread Headlight issue.
    No it doesn't on a '77. That "headlight on only once running" thing started with the '78 models. I'd start by checking the connections...
  • 5twins
    That's pretty much just the nature of this beast, lol. Set the idle when cold and it will be too high once warm. It will need to be kept...
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  • 5twins
    5twins replied to the thread 1975XS 650 B rear tire removal.
    Yes, you can pull the wheel by removing those end caps on the swingarm but you have to break the chain. That's a pain and is messy...
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  • 5twins
    Sounds fine to me. These motors do make some noise, especially if you're using that 40wt. diesel oil instead of the normal 20W-50. I...
  • 5twins
    5twins replied to the thread Elec diagram, key switch.
    OK, I get it now, lol. Pretty complicated unit. I'll stick with the original wiring, thank you, lol.
  • 5twins
    5twins replied to the thread Elec diagram, key switch.
    None of the drawings look right to me yet, lol. As I understand it, the M unit should be fed power from the battery and then it divides...
  • 5twins
    They don't have to be "sloppy loose" to make noise, just a little is all it takes. The intake spec for my '78 is .004" but when I tried...
  • 5twins
    5twins replied to the thread Engine Mounting Bolt Dimensions.
    Yes, those look to be the correct bolts, but it seems Yamaha has changed the part numbers on some of them. But, that's not uncommon on a...
  • 5twins
    5twins replied to the thread Brake lever bushing.
    The 10mm long clutch pushrod bushing will work ........ Drill the hole in the lever out to 3/8" then press the bushing in.
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  • 5twins
    5twins replied to the thread Kdobbs '82 Build Thread.
    I see you managed to find some mags? They look nice on there.
  • 5twins
    5twins replied to the thread Waking up dad's TX650 in Colorado.
    Well yes, study up. The 650 is a very good teacher and bike to learn on. It's easy to work on and everything is pretty much where it...
  • 5twins
    5twins replied to the thread Got it Back.
    Yes, getting the carbs out is one of the 650's "Rubic's Cubes", lol. They will come out without removing the manifolds if you take off...
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  • 5twins
    5twins replied to the thread Removing the tacho drive.
    I'm not sure if you can put it back in with the cover still on, at least correctly that is. It engages the little bevel gear on top of...
    • Tach Drive2.jpg
  • 5twins
    5twins replied to the thread Removing the tacho drive.
    No, that's the only washer, and it will come off. The ends of the swirl gear teeth will then be "open". It's needed so they don't...
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  • 5twins
    5twins replied to the thread Stuck float.
    And for oiling the UNIs, you don't want the special foam filter oil, it's too thick and may clog them. Just use a simple 50-50 mix of...
    • UNIsOiled.jpg
  • 5twins
    5twins replied to the thread Stuck float.
    I don't blame you in the least for wanting to ditch the airboxes, I hate them too, lol. I had read that these bikes run best with the...
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  • 5twins
    5twins replied to the thread No Spark..
    Yes, with the ignition left on and the bike not running, the coil may have overheated and fried itself, at least that's where I'd start...
  • 5twins
    5twins replied to the thread Stuck float.
    K&N pods or the airbox replacement elements? Either way, you will need larger jets, mains for sure, maybe pilots as well. Genuine K&N...
  • 5twins
    5twins replied to the thread Carb slide question '81 XS.
    Well of course I'd say yes, lol. But I do a lot of carb work so that's why I got the 25' roll. You need 11.5" and they sell it in that...
  • 5twins
    I have the TX750 swingarm and chain guard on both my 650s, and I guess I've just grown used to the "look", lol ...... On my '78...
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  • 5twins
    5twins replied to the thread Rabbit holes are me BMW R50/2.
    I never had any issues with the swingarm bearings on my old BMWs, but I kept them well greased. And, I would loosen them before greasing...
  • 5twins
    5twins replied to the thread Carb slide question '81 XS.
    If the fuel "T" does start leaking on you, you can usually "fix" it by clamping the carbs together tighter. Loosen the mounting screws...
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  • 5twins
    5twins replied to the thread No power to orange coil wire.
    Being that the mix screw is right below the plug, if you drill too far and go through the plug, you often then damage the mix screw...
  • 5twins
    5twins replied to the thread No power to orange coil wire.
    You probably don't need to separate the carbs from one another but I do recommend pulling the "bank" (carb assembly). As I mentioned...
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  • 5twins
    5twins replied to the thread No power to orange coil wire.
    Well, your problem may be related to that little o-ring on the mix screw going bad, and to replace it, the mix screws need to come out...
  • 5twins
    5twins replied to the thread No power to orange coil wire.
    To do a proper carb cleaning, you'll need to remove the mix screws and their associated parts (small spring, washer, and o-ring) ...
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    • Mix Screw 80'-on.jpg
  • 5twins
    5twins replied to the thread Carb slide question '81 XS.
    You can "scrounge" alloy tops for your BS34s from other Yamaha carbs (XS360, 400, and the XS750-850 triples), and also from Suzuki...
  • 5twins
    5twins replied to the thread No power to orange coil wire.
    To remove old stuck jets, besides my custom ground bits, I employ penetrating oil, heat, and most importantly, I use a T-handled bit...
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  • 5twins
    5twins replied to the thread Carb slide question '81 XS.
    If you use the proper and correct thin wall fuel line, it should go on pretty easily, and need no clamps other than the original style...
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  • 5twins
    5twins replied to the thread No power to orange coil wire.
    Yes, you can just drop the float bowls to get at the jets, but if they were installed with a full size screwdriver then they're probably...
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  • 5twins
    Well, I think it looks better than that mega-hump original, lol. Seriously, that original seat took a big hit with the "ugly stick"...
  • 5twins
    I'm pretty sure the axle size differs. The 650 has a 20mm diameter axle.
  • 5twins
    5twins replied to the thread Carb slide question '81 XS.
    Luckily, reasonably priced ($20) BS34 replacement slide/diaphragm assemblies are available from Cruzinimage.
  • 5twins
    You can download copies for free here ..... https://thexscafedotcom.wordpress.com/2011/01/10/xs650-manuals/ Even the older manuals...
  • 5twins
    No, I don't have one because they're so darn expensive, lol. They cost more than I paid for the whole bike, lol. At the moment, I'm...
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  • 5twins
    So, I Googled the Honda Shadow and it appears to have a PMA type charging system. If you have a stock 650 charging system then that...
  • 5twins
    Longer rear shocks are the easiest way to achieve what you want. Go 13 1/4" to 13 1/2" long on them. A 1980 seat will swap right on and...
    • NewWheelMounted4.jpg
  • 5twins
    5twins replied to the thread No power to orange coil wire.
    The ball in the worm is 5/16", same as all the other balls in the pushrod assembly. If you remove the adjuster screw, if the ball is...
  • 5twins
    For damping on the screws or bolts, I use these ...
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  • 5twins
    5twins replied to the thread Stop Light Checker XS650C.
    You just may not be looking in the right place for the plug. Normally, the harness plug is on top of the battery box, next to the...
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    • RegWireRoute.jpg
  • 5twins
    I've always driven them in with a BFH and a block of hardwood, but being in the construction industry for many years, I'm pretty good...
  • 5twins
    The float needle seat is retained by that little screwed down tab, not the float needle. It is as you found yours, and that all looks...
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    • Removal.jpg
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    • SeatRemoved.jpg
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