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What did you do to your Yamaha today?

Discussion in 'XJ Technical Chat' started by Cutlass84, Jun 4, 2007.

  1. dowski68

    dowski68 Well-Known Member

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    Not sure about the youngest I've got my 3 1/2 year old who has figured out how to climb up on my xj700x and start the darn thing laughing all the way:rolleyes:
     
    Ketchup likes this.
  2. Jetfixer

    Jetfixer Well-Known Member

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    You should have won!!!! Looks cool.
     
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  3. Ketchup

    Ketchup Member

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    4/23/18

    Have begun Seca diagnosis.

    1. Confirm keycode matches ignition --> clean/lube seized ignition
    2. Validate functionality --> general electrical, relay, switch, starting circuit. Check.
    3. Pull left side engine cover/ignition/timing --> Crank rotates piston 1,2,3,4 however, with a stopping point in both forward and reverse position at approximately the same spot. Definitely hasn't dropped a rod but still fails to make a full 360* rotation.
    3a. Forward rotation has quite a bit more stiction to it than does my other 550 (No spark plugs installed on the Seca for rotation VS spark plugs installed on the Maxim)
    3b. Reverse rotation has your typical starter drag but more toothy than my other 550
    4. Oil cylinder bores


    Since we're on the subject of little helpers - mine just turned two and is fully aware of his righty-tighty-lefty-loosey. Decided he wanted to assist in spark plug reinstallation.


    Cheers,
     

    Attached Files:

    Last edited: Apr 23, 2018
    Plug likes this.
  4. Paul Howells

    Paul Howells Active Member

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    Woe is me!

    Thrilled and elated after my ride home on this beautiful day in sunny Victoria BC, I gave my Maxim a quick walk around to admire what I think is a fine looking motorcycle.

    Much to my dismay I noticed that my head gasket is leaking on the front left. I popped her up on the center stand to check the oil and saw that the glass was covered in a creamy mess. I spun off the oil fill cap and confirmed that the oil is mixed with what must be gasoline. I think it smells like gasoline too but I have a poor sense of smell. What else could it be though? There are no other fluids and I have been riding too frequently for any condensation to have built up.

    IMG_20180423_171209.jpg IMG_20180423_171017.jpg IMG_20180423_171104.jpg
    Nuts!
     
    Last edited: Apr 23, 2018
  5. Jetfixer

    Jetfixer Well-Known Member

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    Oh no think your float needle has leaked fuel into the oil ..carbs need to be pulled and check tips if it is stiff and vitron tipped or has a groove time to replace. You can take a q tip and a little metal polish and a drill put it down into the seat a couple of pulls on trigger and it will polish it up. Better change the oil asap ...
     
  6. Chitwood

    Chitwood Well-Known Member

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    Not necessarily to my yamaha but today was the first day of my MSF course. Next 2 days on the range. Afterwards, did take the Gf's bike to my buddy's to synch the carbs, and made a new clutch cover gasket since I need to put my clutch back together at some point this week.
     
    Stumplifter likes this.
  7. Minimutly

    Minimutly Well-Known Member

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    Removed one of my inlet manifolds so I can machine the 600 mikunis to fit. Actually machined two of them, next two tomorrow.
    Sprung out the airbox, will keep it as advised, but I really don't want to refit it. Will try pod filters or stacks and pod filters or maybe make up an alumium box with a panel
     
    Ketchup likes this.
  8. Ketchup

    Ketchup Member

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    Lets have a look at that! Pictures!
     
  9. Tim O

    Tim O Active Member

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    I don't know where it came from, but that absolutely looks like water, not fuel.....

    Came through gas tank??? You recently pour in a can that's been sitting in the shed or anything like that?
     
  10. Minimutly

    Minimutly Well-Known Member

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    Which bit? Not made the airbox yet, might never.
    Wheel came today
     
  11. dowski68

    dowski68 Well-Known Member

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    If this the air cooled version than the only fluid is gasoline.
    Just a suggestion -
    Pull carbs and clean-
    check for gasoline leaks and change oil.
     
  12. nablats

    nablats Member

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    degreased engine cases, need to decide - silver or black? need to powder coat triple tree b4 taper rollers can install, fork rebuild next
     
  13. Chitwood

    Chitwood Well-Known Member

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    Finished the basic rider course this afternoon. Both the GF and myself passed with 0 points off our exam. Boy those street 500's left much to be desired. Had issues with more than 2 bikes in 2 days and it had nothing to do with being dropped or anything. Which one rider did do, twice, and somehow still passed even though he put a foot down during one of the exams. Oh well, got my paperwork, going to the dmv tomorrow, then after work it will hopefully be colortune, synch, and ride! I will say I definitely see why it's recommended that everyone take one of those courses. It wasn't the cheapest option for getting the M endorsement, but I'm glad we went that route.
     
  14. Moto psycho

    Moto psycho Member

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    Tried to start only firing on cylinders 2 & 4!! Help ?
     
  15. XJ550H

    XJ550H Well-Known Member Premium Member

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    move spark plugs to different cylinders see if the problem follows plugs.
    trim spark plug wires back on 2 and 4 because coilpack is 1&4 and 2 and 3, so your coils are good
    ohm out the spark plug caps when you unscrew them to trim wires .
    if it is not your ignition it could be carb related
     
  16. Moto psycho

    Moto psycho Member

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    I am doing all of that except I had brand new plugs
    I have done all that already except I have brand new plugs and all the carbs I had justI had just been gone through by myself and everything was replaced with stock but the carb was disgusting
     
  17. Joe34

    Joe34 Active Member

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    When your having a bad day already. You should leave your bike alone . 20180426_193418.jpg
     
  18. RCHER

    RCHER New Member

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    I replaced the missing horn button. Had to solder the wire back on, now it beeps again. And I gave the Mac headers a fresh coat of paint as they were looking rough.
     
  19. Jetfixer

    Jetfixer Well-Known Member

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    What does this go to?
     
  20. Joe34

    Joe34 Active Member

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    Cam chain tensioner
     

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