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  1. Nacho_Supreme
    Post

    Piston rings and cylinder walls

    Ya it is deep in a bad way. New cylinder bank arrived yesterday, looks good so far, just need to check bore and hone. Gaskets for the rebuild are...
    Post by: Nacho_Supreme, Mar 3, 2015 in forum: XJ Technical Chat
  2. Nacho_Supreme
    Post

    Piston rings and cylinder walls

    I found a set of cylinders that looked pretty good from the pictures, guess I will get those and rehone them, check bores, and get some new rings....
    Post by: Nacho_Supreme, Feb 26, 2015 in forum: XJ Technical Chat
  3. Nacho_Supreme
    Thread

    Piston rings and cylinder walls

    1981 xj650. So after getting the bike running well last summer I noticed I was having to refill the oil with another quart every 300 miles or so....
    Thread by: Nacho_Supreme, Feb 26, 2015, 13 replies, in forum: XJ Technical Chat
  4. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    Oh ya, lubed the pilot mixture screw rubber o-rings with lithium grease, and used the same grease to hold the edge of the diaphragms down in...
    Post by: Nacho_Supreme, May 7, 2014 in forum: XJ Technical Chat
  5. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    I ended up shooting carb cleaner through all off the pilot circuit passages. Did it from under the diaphragms and out the mixture screws and pilot...
    Post by: Nacho_Supreme, May 7, 2014 in forum: XJ Technical Chat
  6. Nacho_Supreme
    Post

    Cylinder #2 not firing

    Thanks! I took the carb apart again and checked all the jets and everything else. It turns out the main air jet under the diaphragm was plugged...
    Post by: Nacho_Supreme, Apr 23, 2014 in forum: XJ Technical Chat
  7. Nacho_Supreme
    Thread

    Cylinder #2 not firing

    '81 XJ650 Maxim. I recently rebuilt the carbs, cleaned very meticulously, replaced throttle shaft seals and fuel o-rings, float needles and seats....
    Thread by: Nacho_Supreme, Apr 17, 2014, 3 replies, in forum: XJ Technical Chat
  8. Nacho_Supreme
    Post

    super high idle

    25k miles. I got a new battery when I bought it because the old one wasn't holding a charge, and hasn't had a problem with that since(every week...
    Post by: Nacho_Supreme, Apr 15, 2014 in forum: XJ Technical Chat
  9. Nacho_Supreme
    Post

    Cylinders 1 & 2 not firing '81 XJ650

    Yes, when rebuilding I wet-set all float levels to 3mm below the carb body edge on the float bowls. Also when I had it apart last night, double...
    Post by: Nacho_Supreme, Apr 13, 2014 in forum: XJ Technical Chat
  10. Nacho_Supreme
    Thread

    Cylinders 1 & 2 not firing '81 XJ650

    It now idles very nicely and runs smooth but has a distinct lack of power. Initial takeoff is very slow no matter how much throttle I give it....
    Thread by: Nacho_Supreme, Apr 13, 2014, 2 replies, in forum: XJ Technical Chat
  11. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    Vacuum synced, no change. Removed carbs and cleaned out pilot fuel circuit and it no longer races. Now it doesn't want to start very well when cold.
    Post by: Nacho_Supreme, Apr 13, 2014 in forum: XJ Technical Chat
  12. Nacho_Supreme
    Post

    super high idle

    UPDATE: I vacuum synced the carbs last night, no change to the idle speed, still was at 4-5k, though running smoother while doing it. I took the...
    Post by: Nacho_Supreme, Apr 13, 2014 in forum: XJ Technical Chat
  13. Nacho_Supreme
    Post

    super high idle

    I took them apart, cleaned, and put them back together one at a time so that I had no way of interchanging parts in between the carbs. At least...
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  14. Nacho_Supreme
    Post

    super high idle

    And there are no dumb questions :) I appreciate all the help I can get!
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  15. Nacho_Supreme
    Post

    super high idle

    The PO must have installed a new petcock at some point because it only has On, Off, and Res. There is no prime and no vacuum line.
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  16. Nacho_Supreme
    Post

    super high idle

    Ya, did that last night also, springs were good, diaphragms were good, seated well in the groove, and checked them for tears. Clunked during the...
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  17. Nacho_Supreme
    Post

    super high idle

    Took it apart and checked the butterfly valve seating, made some adjustments and bench synced again. Checked against a bright light to make sure...
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  18. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    Ya, when putting them back together I used a piece off glass to make sure they were lined up. The throttle linkage works smoothly, returns to the...
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  19. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    I pulled the pilot mixture screws out and checked to see that the washers and o-rings were still there. I did not replace them because they still...
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  20. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    Good to hear you got it running. I replaced my throttle shaft seals, float needles and seats, wet set the fuel height to spec, bench synced,...
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  21. Nacho_Supreme
    Post

    Xj650 HIGH IDLE, puts itself to full throttle

    Did you ever figure out out? I'm having the same problem with my 81xj650
    Post by: Nacho_Supreme, Apr 12, 2014 in forum: XJ Technical Chat
  22. Nacho_Supreme
    Post

    super high idle

    Thanks for all of the advice! Floats are installed correctly to the best of my knowledge(as shown in the 'Setting your Fuel levels' PDF on...
    Post by: Nacho_Supreme, Apr 9, 2014 in forum: XJ Technical Chat
  23. Nacho_Supreme
    Thread

    super high idle

    I recently bought an '81 xj650 and it was not running well. It was dying every time I stopped, after the first carb rebuild while waiting for...
    Thread by: Nacho_Supreme, Apr 8, 2014, 24 replies, in forum: XJ Technical Chat
Showing results 1 to 23 of 23
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