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  1. JackSamo
    Post

    81 XJ750

    I will check the TCI's again on his bike, he's a motorcycle mechanic by trade and has a yard full of old bikes like that. TCI's didnt come from...
    Post by: JackSamo, Sep 7, 2024 in forum: XJ Technical Chat
  2. JackSamo
    Post

    81 XJ750

    Yes I have good voltage on both red/white at the coils. Ive done that step and rules out the pick up coils, when flipping the orange and grey on...
    Post by: JackSamo, Sep 5, 2024 in forum: XJ Technical Chat
  3. JackSamo
    Post

    81 XJ750

    Ive fixed the issue with the resistance from the fise to coils. The pick up coils read 650 and 630 ohms of resistance to ground. When I flip the...
    Post by: JackSamo, Sep 5, 2024 in forum: XJ Technical Chat
  4. JackSamo
    Post

    81 XJ750

    Alright, so got another TCI. Figured the other was bad bc when I fliped the grey and oranger connectors at the tci the spark flipped. But with...
    Post by: JackSamo, Sep 5, 2024 in forum: XJ Technical Chat
  5. JackSamo
    Post

    81 XJ750

    Sorry meant after the splice. I've redone the splice and replaced the wiring from the splice to the coil. Ohms are a bit lower at 480, still no...
    Post by: JackSamo, Sep 4, 2024 in forum: XJ Technical Chat
  6. JackSamo
    Post

    81 XJ750

    So did some investigating and found that there were no flaws wity tge red/white wire. Which confused me. I tested from where the red/white split...
    Post by: JackSamo, Sep 3, 2024 in forum: XJ Technical Chat
  7. JackSamo
    Post

    81 XJ750

    Yea got 0 ohms to the other coil. And thank you I'll check out the connector and crimp. Hopefully its that simple. Also now with the new tci,...
    Post by: JackSamo, Sep 2, 2024 in forum: XJ Technical Chat
  8. JackSamo
    Post

    81 XJ750

    Checked the fuse to coil connection, had about 0.68 ohms of resistance on the 20k setting, presuming next step would be to cut open the harness...
    Post by: JackSamo, Sep 2, 2024 in forum: XJ Technical Chat
  9. JackSamo
    Post

    81 XJ750

    Well found a part out with a good, tested tci. Put it in and I got spark! But only on cylinders 2 and 3 lol. Now I have good power to the coils...
    Post by: JackSamo, Sep 2, 2024 in forum: XJ Technical Chat
  10. JackSamo
    Post

    81 XJ750

    Fuse was not blown, when I got the bike though it had the original fuse box, the main fuse slot was a bit melted but the fuses were intact. Also...
    Post by: JackSamo, Aug 31, 2024 in forum: XJ Technical Chat
  11. JackSamo
    Post

    81 XJ750

    [ATTACH] Opened up my TCI just to see if anything looked off, top side it completely chared and as soon as the lid came off I was hit with a burnt...
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  12. JackSamo
    Post

    81 XJ750

    [ATTACH] Pick up coils are good So are the coils, plug caps and plugs. I've tried several attempts to get a reading to no avail. I'm meant to be...
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  13. JackSamo
    Post

    81 XJ750

    So from the coils, I have 0V going from the grey/orange to ground. With or without cranking. Same with the connections on the TCI, the wires...
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  14. JackSamo
    Post

    81 XJ750

    Ah okay, I'll give that a shot and reply. Thanks for the advice
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  15. JackSamo
    Post

    81 XJ750

    So attach the multimeter to both the red and orange/grey at the same coil correction? Sorry stupid question but better thab a stupid mistake
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  16. JackSamo
    Post

    81 XJ750

    Turns out it wasnt. I am reallyyyyy struggling with this bike. I have new coils/wires/plugs. Proper spark plugs, all connections I can find have...
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  17. JackSamo
    Post

    81 XJ750

    [ATTACH] [ATTACH] Think I might have missed this one, connects to the rectifyer and tci. Gonna replace the whole connector bc I dont think I can...
    Post by: JackSamo, Aug 30, 2024 in forum: XJ Technical Chat
  18. JackSamo
    Post

    81 XJ750

    I have both, checked all connections and cleaned. I get decent power to the coils, especially when boosting the battery. 14V and then 11V cranking...
    Post by: JackSamo, Aug 28, 2024 in forum: XJ Technical Chat
  19. JackSamo
    Post

    81 XJ750

    Ah okay, so im probably losing power somewhere. Ill try a different battery just in case. And go over all connections. Edit; Tried a larger...
    Post by: JackSamo, Aug 26, 2024 in forum: XJ Technical Chat
  20. JackSamo
    Post

    Taking out the wires in the ignition coil on my 82 750 maxim

    Hey what year cb750 were those coils off of?
    Post by: JackSamo, Aug 26, 2024 in forum: XJ Technical Chat
  21. JackSamo
    Post

    81 XJ750

    Sorry no clue where I got those results or why I didnt question them. I retested with a different ameter and got; Primary coil: 9.7V drops to 7.5V...
    Post by: JackSamo, Aug 26, 2024 in forum: XJ Technical Chat
  22. JackSamo
    Post

    81 XJ750

    Hey, just wondering. I have power to the pigtails that connect to coils, 20V stagnant and then 15V while cranking. Are they supposed to pulse...
    Post by: JackSamo, Aug 25, 2024 in forum: XJ Technical Chat
  23. JackSamo
    Post

    81 XJ750

    Will do thanks
    Post by: JackSamo, Aug 25, 2024 in forum: XJ Technical Chat
  24. JackSamo
    Post

    81 XJ750

    Yea ive got no spark across all cylinders, Ive cleaned the grounds and most connections from the tci, but ill start cleaning around the start...
    Post by: JackSamo, Aug 25, 2024 in forum: XJ Technical Chat
  25. JackSamo
    Post

    81 XJ750

    I put a brand new battery in the bike. And replaced the main and ignition fuses with inline fuses temporarily until I can find a proper blade...
    Post by: JackSamo, Aug 25, 2024 in forum: XJ Technical Chat
  26. JackSamo
    Thread

    81 XJ750

    Hey Noobie here. Bought a 1981 XJ750 that sat for 8 years. The bike cranks over, but I have no spark. Great conpression. Removed the safety relay...
    Thread by: JackSamo, Aug 24, 2024, 45 replies, in forum: XJ Technical Chat
Showing results 1 to 26 of 26
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