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    rough running

    Have you ever ridden a large-ish single before? They aren't terribly smooth until they get some revs in them. Having said that I wouldn't say anything out it is 'rough'. Anyone in Vermont that can swap bikes with our new friend?
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    Stainless Steel Bobbins

    That is actually an incredible price. I made my own since I have a lathe but with material, time and the stainless bolt all electroplated I could not do that for $30.
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    ABS warning and Locking hand brake Lever

    that sounds like your ABS module is malfunctioning
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    So I'm doing a thing...

    No, that is what I'm saying. Up top in open loop you are fine. The powertronic actually removes fuel over 6k rpm. But below that it is adding it, quite a bit in the exhaust map. You can avoid running lean as long as you have a FuelX lite and stick with moderate throttle below 6k.
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    So I'm doing a thing...

    The FuelX only corrects closed loop operation - light to moderate throttle and loads. As soon as you whack the throttle open you go right back to the stock tables that are overly lean for a stock exhaust. I would not run an exhaust without both (although I think a lot of people do). The...
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    So I'm doing a thing...

    Installed Powertronic ECU and the stage2 DNA filter kit. Used Powertronic's 'exhaust' downloadable map to run it. They did a nice job with the tune file, I made a small sleeve extension to put just upstream of the muffler so that I could run a wideband O2 meter. A little ghetto looking but it...
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    Handlebar Grip Compatibility?

    Only Harley's use a 1" bar as far as I know. You want grips for 3/4".
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    svartpilen 401 fuelx problems

    As much as a pain as it might be, I would uninstalled the fuelx and see if any of your problems remain. The clutch thing certainly doesn't sound like something a piggyback could screw up.
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    Svart 401 chain

    the chain is the cheapest part of these bikes and that is saying something. first thing I did was swap out sprockets and put a real chain on it.
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    Coober ECU & FuelX

    Did you read the previous post? I can't recommend running them both together enough. Profound difference.
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    Magura HC1 juice clutch

    It was trial and error and several hours of work. So no, sorry. Pics of what I had to do are in my build thread https://hqvadventure.com/forum/threads/so-im-doing-a-thing.1235/
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    401 wont turn over unless in Neutral ....

    I just verified this, in gear no start with the side stand down
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    401 wont turn over unless in Neutral ....

    You can start in gear with the clutch pulled, you can start in neutral with the sidestand down. I don't think you can start in gear with the sidestand down even if you have the clutch pulled in. This is from memory one day when I had a WTF moment. Another way to say this is I believe the...
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    My New Svart 401

    I wish I saw this sooner. I was going to move to the Nitron but I hate that baby blue, I had no idea you could get it in a dark spring. That is getting ordered this weekend.
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    Tyre inner tube question

    Surely this is covered in both the owner's manual and google.
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    Inovace

    Ah, it is a translate issue. Blasters must be your way of saying handguards? I thought it was a joke, like Blasters from 'Star Wars'. Pew pew pew. Definitely no blasters for me then, my bike will never see rain let alone dirt.
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    2020 Vit clip on and Cie

    You either have incredibly long arms or you enjoy a little pain. The vit bars are so low stock and then you went even lower!
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    2022 Svart will not start, radiator fan running, blown 30a fuse.

    I didn't want to write that and insult you, but I think the same thing. I've dropped new batteries in before and the posts were on different sides from OEM and accidentally connected it wrong. Easy to blow more than just one fuse. In my case it was the fuse for the injector pulsers.
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    Coober ECU & FuelX

    But he has a Coober. You don't know that they operate the same. There is nothing intrinsic to an ECU that says one system could not do both. Instead of asking people on the internet the OP would be best served by actually contacting Coober and getting real information.
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    Svart 401 wont start

    The Powertronic remaps all the open loop tables from what I can see. Closed loop operation (low throttle input and relatively low rpms) doesn't get touched, that is why you need a FuelX also. I don't know what the Coober ecu does, you could contact them and ask.
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