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XJ700 Maxim doesn't start

Discussion in 'XJ Technical Chat' started by Quinten Michael Permenter, May 23, 2019.

  1. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    Got it taken care of. Carb 1 and 2 were off by a bit. no more leaks. Took off the throttle shaft seals and they weren't hard, crusted, and still lubed. Put some more lube on just in case. Thanks k-moe.
     
  2. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    So here is a question for all. Today I went out and tried to get a few different ways to jump the bike but to no avail. I tried connection the positive to the engine or the battery or anywhere, thinking it might just be the ground that was bad, but no matter where I hooked it up, it wouldn't give me anything more than that little click from the solenoid. Does that mean there has to be a short in the wiring running from the on off switch to the battery?
     
  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    positive goes to nut on starter cable at starter or solinoid even though it is black. negative goes to motor.
    if your jumping direct you would not even use the starter button.

    if you want to test the starter button unplug the connector at solenoid hook a meter to the blue stripe wire and ground cable . set meter to ohms and press starter button yu should get 0.0 ohms
     
  4. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    should I unplug the connectors to the battery to do that or leave them on?
     
  5. XJ550H

    XJ550H Well-Known Member Premium Member

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    just leave them on you are disconnecting the solenoid from the main harness and testing the harness connector
     
  6. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    Okay, so here is the newest update. I've rebuilt the carbs per spec of the carb bible, and I got a new starter that I just put in today.
    Engine cranks over now, the sparks have good spark and just in case I replaced them. The bike gets good compression, and when I was testing the sparks with them not in, I could smell a little bit of gas, which to mean would mean that the gas is enough as well...It sounds like it wants to start but that it just isn't getting enough of something.
    Any ideas? Suggestions?
    Thanks for all the help so far guys!
     
  7. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Did you prime the carbs before attempting to start?
    Did you use any enrichment?
     
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  8. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    That would be a negative to both questions. How do I do that?
     
  9. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    That would be a negative to both questions. How do I do that?
     
  10. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Set the petcock to Prime for about 30 seconds to fill the float bowls, then turn it back to ON.

    The thumblever on the left side control is the enrichment lever. Turining it to the left opens the enrichment circuits (analog to the choke on a car).
    Depending on the outsde temerature you might need a bit of extra fuel in order for the bike to start, so turn that lever.

    The first start with carbs that have been dry is usually the hardest.
     
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  11. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    Perfect!!! We got her running!!!! She starter right up and reved up all the way but when I went to slide the clutch lever to the right she stayed up super high. Any suggestions?
     
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  12. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Make sure that you didn't reverse the throttle and enrichment cables when you installed the carbs.
    The throttle cable connects to the linkage between, and in front of, the #2 and #3 carbs.
     
  13. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    So here is a little update again, I think it was the throttle cable that wasn't set right on the carb and the throttle was stuck open and so that is why it reved. So I adjusted that and it lowered it to a good idle speed but now it is jumping back and forth or reving itself high and low and when I try to give it gas, It revs up and then putters out.
    What should I do from here?
     
  14. XJ550H

    XJ550H Well-Known Member Premium Member

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    is the linkage hanginu up on the head?
    check the ignition system
     
  15. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    I had great spark out of all of the coils. Could it be that I need to sync the carbs after it all? Or what else would cause the rpm to rev up and down so much???
    Is there a mixture screw? Or an idle adjustment screw?
    thanks for the help guys
     
  16. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Out of synch carbs can cause the idle to fluctuate.
     
  17. Quinten Michael Permenter

    Quinten Michael Permenter Member

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    Okay, so the carbs are synced and it evened everything out a ton!
    But when I give it gas in first gear, it putters out and doesn't move. I think this is due to the fact that i bought it and it had pods on it and the air to fuel ratio isn't right. Would this be a correct assumption? I know the jets are clean because I just cleaned them. But if I am right and it isn't running right because of the wrong air to fuel, is there a way to change this without changing the jets? Or if I have to change the jets, what size should I go with?
    Thanks for the help!
     

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