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    '79 XS650 Special Low-Effort Resto

    Worked. Thanks, Gary. Also, out of curiosity, how do you measure the clocks to determine their size? Across the glass? From bezel to bezel? Across the opening on the gauge bucket? I'm curious about deleting the cable-driven speedo and replacing it with a GPS unit and I'd like one that'll at...
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    '79 XS650 Special Low-Effort Resto

    Ah, right on. And, yeah, that's the wiring diagram I've been working with. I'll just splice in a yellow wire from one of the PMA output wires to the yellow wire that's already in the loom. I don't feel like doing any more wiring than I absolutely need to. Thanks.
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    '79 XS650 Special Low-Effort Resto

    Right on, yeah. According to what I found elsewhere on the site and my wiring diagrams, I knew that the yellow wire provided current to the relay but I didn't know for sure that it also acted as a headlight relay. I already removed the RLU and jumped the appropriate wires months ago since this...
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    '79 XS650 Special Low-Effort Resto

    RISE FROM YOUR GRAVE So, I ended up putting an XSCharge PMA on this thing. I ran into the usual little issues with doing so (the instructions assume you're installing it on a chopper or something with a simplified electrical system) and I ended up doing some light wiring to make it all work...
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    '79 XS650 Special Low-Effort Resto

    Oh, I was just curious is all.
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    '79 XS650 Special Low-Effort Resto

    I just double-checked and it's 10w-40, not 30. I'll switch it to a thicker/heavier oil ASAP, though.
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    '79 XS650 Special Low-Effort Resto

    Yeah, I have all that and the tabs aren't bent. I think the drive is just bad. I'll poke around for a new (to me) one. By the way, what do we think about running diesel oil (like Rotella) in our old engines? I see guys do it all the time with old cars they rescue because the diesel oil...
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    '79 XS650 Special Low-Effort Resto

    I actually just found a second one hiding in my toolbox, of all places. So, at least that's sorted. What do you all think about the speedo drive issue, though?
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    '79 XS650 Special Low-Effort Resto

    Okay, something extremely weird is going on here. These carbs are not the carbs this bike came from Japan with. I bought them off eBay last year because the ones that came with the bike were, frankly, so far gone I didn't want to deal with them. They were sold as '78-'79 carbs. I found a single...
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    '79 XS650 Special Low-Effort Resto

    Yeah, I saw those and just laughed and laughed and laughed. Then I went out and dug through my parts bins and came up with one spring that works and ordered a whole new carb rebuild kit just for the other spring. At least it comes with all the other parts I can use on other carbs instead of...
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    '79 XS650 Special Low-Effort Resto

    Well, goddammit. Huh, I'll find some somewhere, I guess.
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    '79 XS650 Special Low-Effort Resto

    I thought they should, but they didn't come with springs, nor did these carbs have springs when I got 'em. Also, the parts diagram doesn't show them. My Hondas all have springs on their mixture screws, and so does my 850. I honestly just figured it didn't have them, 'cause I've seen some other...
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    '79 XS650 Special Low-Effort Resto

    So, an update! This thing is still definitely haunted. When I can get it to run right, it runs like a champ. The problem is that it's hard to keep running when the mixture screws keep backing out of the carb bodies and falling off. I haven't lost one yet, but the last time I took it out it...
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    '79 XS650 Special Low-Effort Resto

    B E H O L D It's (mostly) done. I ended up having to rebuild the mechanical advance with new weights, springs, and clips, and use the center section provided with the XSCharge ignition to get it to run correctly, but now it's all tuned up and ready to go. It still needs a touch of fettling...
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    '79 XS650 Special Low-Effort Resto

    Ah, right on. It seems that my advancer is a bit tired, 'cause it idles in the correct range just fine, but the XSCharge unit has to be retarded past where its "slots" are. That, and it advances way past the advancement mark when revved to 3000. I reckon I need one of those advancer unit rebuild...
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    '79 XS650 Special Low-Effort Resto

    Okay! So, I got the XSCharge ignition from Mike's yesterday. Got it all installed after some fiddling, and the bike fired right up with the new ignition in its starting setting (middle of the slot). Now I just need to get it properly timed, which leads me to a question. The instructions, such as...
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    '79 XS650 Special Low-Effort Resto

    Grazie, Twins.
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    '79 XS650 Special Low-Effort Resto

    Today I threw it back on the lift because it was running terrible yesterday on my test rides. It idled fine, but it ran like dogshit once underload up to around 3000 rpm. Lots of bucking and popping and then stalling out completely once I came to a stop. Clearly it needed more tuning. First off...
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    '79 XS650 Special Low-Effort Resto

    It does. Also, in my defense, those wires are clearly black with a hint of color and not actually brown and green.
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