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  1. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Where did you manage to find the sizing? Also, do you know where up here I could find some larger hitachi main jets? Would still like to properly...
    Post by: Justin1270, Apr 26, 2021 in forum: XJ Technical Chat
  2. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Should I be looking to increase my main jetting in the future then? I'm fairly confident that is most likely the cause. I now have all original...
    Post by: Justin1270, Apr 26, 2021 in forum: XJ Technical Chat
  3. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Well holy shit. I managed to fix it, and damn does it ever fly now. So after some very careful investigation of the jets, I compared the Hitachi...
    Post by: Justin1270, Apr 24, 2021 in forum: XJ Technical Chat
  4. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    I actually have tried with both the dynojet needle at the lowest setting, and the y10 needle and it didn't seem to make a difference either way. I...
    Post by: Justin1270, Apr 24, 2021 in forum: XJ Technical Chat
  5. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Interesting. Just wanted to confirm, you had an xj650, stock airbox, dynojet 112 with y-13 needle?
    Post by: Justin1270, Apr 24, 2021 in forum: XJ Technical Chat
  6. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    As best as I could, yes. I know that means they are running rich, its just a question of why only on 3 cylinders. Or is it really the opposite...
    Post by: Justin1270, Apr 24, 2021 in forum: XJ Technical Chat
  7. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Interesting, I'm going to have Alright, getting real frustrated with the bike now. Synced carbs perfectly with a manometer, confirmed idle...
    Post by: Justin1270, Apr 24, 2021 in forum: XJ Technical Chat
  8. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Soo, tore the carbs apart again. You were right, floats were low. But that doesn't seem to be the problem here. Still the same problem. I tried...
    Post by: Justin1270, Apr 23, 2021 in forum: XJ Technical Chat
  9. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Sorry for the late reply. It snowed 3inch here today, and I haven't been able to take the bike out for testing, but I'll answer what I can....
    Post by: Justin1270, Apr 21, 2021 in forum: XJ Technical Chat
  10. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    That is interesting. I didn't know that, I'm going to look into it.
    Post by: Justin1270, Apr 21, 2021 in forum: XJ Technical Chat
  11. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Throttle position is irrelevant, will accelerate to approx 5k and then no longer accelerate, and sputters. Shifting to lower rpms will give...
    Post by: Justin1270, Apr 20, 2021 in forum: XJ Technical Chat
  12. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    I can't seem to find them anywhere up here in Ontario, and even trying to ship from the states I don't see anymore than 1 available. Do you...
    Post by: Justin1270, Apr 19, 2021 in forum: XJ Technical Chat
  13. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Is there another model of spark plug that is equivalent to the bp7es that is still in production?
    Post by: Justin1270, Apr 18, 2021 in forum: XJ Technical Chat
  14. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Post by: Justin1270, Apr 18, 2021 in forum: XJ Technical Chat
  15. Justin1270
    Post

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Unfortunately there are existing resistor plug caps on the bike. I know that technically it should be either one or the other, but the local bike...
    Post by: Justin1270, Apr 18, 2021 in forum: XJ Technical Chat
  16. Justin1270
    Thread

    XJ650 Sputtering and lack of acceleration after 5k RPM

    Bike is an '83 xj650, bought recently as a project bike. Was not running properly from purchase, with some PO hack work. Checked valves and...
    Thread by: Justin1270, Apr 18, 2021, 50 replies, in forum: XJ Technical Chat
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