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XJ700X work updates.

Discussion in 'XJ Technical Chat' started by Huntchuks, Aug 16, 2021.

  1. Toyobaru866

    Toyobaru866 Active Member

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    Looking good!
    I've had a few aftermarket handlebars on my X. They looked good but now I'm back to stock. The way the original handlebars are shaped relaxes the wrists and riding position. You want to be able to lean in the wind and relax when your driving at higher speed.
     
  2. Huntchuks

    Huntchuks Well-Known Member

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    With these bars I can actually lean back! Not good, requires the abs to clench and makes me feel like I am wanting to slide onto the tank. I need to locate some good condition stock handlebars. I can't even use the bars from the non-X because they are bent from a PO lay down.
     
  3. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    I may have a set..... maybe just swap ya— I’ll check
     
  4. Toyobaru866

    Toyobaru866 Active Member

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    Hahaha, sorry just had a visual
     
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  5. Huntchuks

    Huntchuks Well-Known Member

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    Got my left horn installed, thanks to @Dan Gardner. Now I have a mini collection. 20210904_190620_001.jpg
     
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  6. Dan Gardner

    Dan Gardner Well-Known Member Premium Member

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    Looking good!
     
  7. Huntchuks

    Huntchuks Well-Known Member

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    When installing it I noticed it almost completely obstructs access to the coolant reservoir and am speculating the horn was removed to gain access some time in the past and was not reinstalled. Who on earth would not reinstall a horn?
     
  8. Dan Gardner

    Dan Gardner Well-Known Member Premium Member

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    Just one more item on the list of bizarre and inexplicable crap people have done to these machines over the years, I suppose.
     
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  9. xHondaHack

    xHondaHack Active Member Premium Member

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    Because there's one on the other side?
    Sometimes the bracket will crack and break so it may have been tossed?

    You can only guess at this point, and I wouldn't lose sleep over it.

    BTW, they're looking nice.

    Tony
     
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  10. Huntchuks

    Huntchuks Well-Known Member

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    So, the X is running badly. Rough at low RPM's which really shows when taking off in 1st. After the oil change yesterday I regapped the plugs (from PO) and all were on the high side with #1 being out of spec. While warming up the bike to circulate the new oil I found that at higher than idle RPM's, over 2000 or so, I get a lot of popping coming from both mufflers. May be too rich and burning fuel in the pipes? The plugs don't show a rich condition so I am perplexed.
     
  11. Huntchuks

    Huntchuks Well-Known Member

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    Dropped off the X at son's and picked up the airhead. Another possible symptom is it appears the exhaust gaskets are bad and getting worse. everything is as tight as can be and will be replacing with new gaskets. The louder it runs, the worse it runs. Is the X very sensitive to back pressure or leakage? Can it cause rough lower RPM's and popping at higher? I've even had an occasional louder backfire type pop if releasing the throttle quickly.
     
  12. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Carbs rebuilt?
     
  13. Huntchuks

    Huntchuks Well-Known Member

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    Clean as a whistle. Unless they got dirty since I reinstalled them.
     
  14. Noahsxj

    Noahsxj Active Member

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    Wish I would’ve seen this before I spent 3 days getting rust out of a 550 tank..
     
  15. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Synced?
     
  16. Huntchuks

    Huntchuks Well-Known Member

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    Vacuum synced but I have no 12 MM Colortune to adjust mixture.
     
  17. Huntchuks

    Huntchuks Well-Known Member

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    Pulled plugs last week and tweaked the gaps, one being much larger than the rest. No change in the way the bike runs. Saturday I pulled plugs to have a look at the pistons with a bore scope and one plug, when held vertically, had no gap at all. In fact, the insulator had broken and slid down over the electrode. The pistons have no dings or holes. Sunday I bought and installed new plugs. Huge difference. Warmed up the engine, drained the bowls, disconnected the TCI and checked compression again. My cheap Harbor Freight gauge shows #1 at 145 PSI, #2 at 145, #3 at 147 and #4 at 144. Because of the consistency between cylinders, I think the gauge just reads low and I am good. While running bike on center stand and idling, revving, holding at 2000 and 3000 rpm, the popping has largely if not completely disappeared. Pulled the new plugs and #1 and #3 were discolored but #2 and #4 were shiny like new. All pipes were hot. Replaced plugs, turned out the mixture screws on 2 and 4 and repeated the process. Pulled plugs and no change. Buttoned it up, covered the red bike and rode the X home after a little joy ride. Yesterday (Monday) I pulled the plugs and they all had white on the top of the side electrode and dark coloring in the center insulator and some dark, not heavy, deposits on the rim of the threads. Checked the mixture screws and all are from 3.5 - 4 to 5 - 5.5 turns. Not sure what to do next. Seems lean still but propane test shows no air leaks. Next step I guess is valve clearances, maybe today.
     
  18. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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  19. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Make sure you:

    -read up on the procedure for the X. It’s different than the airheads. ( shim under Bucket rather than shim on top of bucket, and you should Zip tie the cams to the chain so you don’t put anything off by a tooth. Also, mark cam positions first since you must lift the cams)
    -have narrow feelers
    -have rags to stuff into the cam chain tunnel
    -have plenty of time
    -don’t mix up the cam caps
     
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  20. Huntchuks

    Huntchuks Well-Known Member

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    Thanks, I have read some of that. Nasty business. I did buy some narrow feelers for this purpose. May be a better weekend job. You are allowed to come over and help.
     

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