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  1. alexdc03
    Post

    trying to find a part number '84 XS400 Maxim

    Yeah been through the pictures a million times, you can see where the seal goes on the crank case picture but no reference to the rod of shaft...
    Post by: alexdc03, Jul 14, 2010 in forum: Other Motorcycles
  2. alexdc03
    Thread

    trying to find a part number '84 XS400 Maxim

    I am leaking a bit of oil from a seal near the front sprocket but the seal doesn't show up on the dealer pictures. When I remove the left side...
    Thread by: alexdc03, Jul 14, 2010, 2 replies, in forum: Other Motorcycles
  3. alexdc03
    Thread

    Fork seals

    Does anyone know the dimensions of the fork seals for my '84 XS400 Maxim? The stealer wants near $22 each but I can find them much cheaper online...
    Thread by: alexdc03, Jun 22, 2010, 1 replies, in forum: XJ Technical Chat
  4. alexdc03
    Post

    Upsized my jets! Still running lean!

    On my XS400 I replaced the throttle shaft seals and checked every seam and seal for an air leak with propane and carb cleaner only to findI still...
    Post by: alexdc03, Apr 23, 2010 in forum: XJ Technical Chat
  5. alexdc03
    Thread

    Airbox boots for the carbs

    Anyone know an aftermarket place that sells the airbox carb boots for a '84 XS400? I don't think they are available from Yamaha anymore. Maybe...
    Thread by: alexdc03, Apr 18, 2010, 4 replies, in forum: XJ Technical Chat
  6. alexdc03
    Post

    carbs still leaking

    When mine leaked from between the carb on the gas lines my o-rings were still good but the aluminum oxidizing inside the pipe never made for a...
    Post by: alexdc03, Oct 28, 2009 in forum: XJ Technical Chat
  7. alexdc03
    Post

    She's done, selling her for parts

    I use these for removing old gasket material of aluminun engine parts, they are made to not remove aluminum or gouge it. 3M bristle dics...
    Post by: alexdc03, Oct 16, 2009 in forum: XJ Technical Chat
  8. alexdc03
    Post

    How do my plugs look

    Ok re-did the cold and hot test with the new tester, my numbers are better. left cold 141psi hot 149psi right cold 143pi hot 152psi I...
    Post by: alexdc03, Oct 14, 2009 in forum: XJ Technical Chat
  9. alexdc03
    Post

    How do my plugs look

    But if a valve was stuck open squirting oil in would not seal this and make compression go up, so when my numbers went up doesn't that rule out...
    Post by: alexdc03, Oct 14, 2009 in forum: XJ Technical Chat
  10. alexdc03
    Post

    How do my plugs look

    These are my numbers for valve clearance, left exhst 0.007 left intk 0.006 right exhst 0.006 right intk 0.004 So my valves are in...
    Post by: alexdc03, Oct 14, 2009 in forum: XJ Technical Chat
  11. alexdc03
    Post

    How do my plugs look

    Well after fixing a few things I beleive I have foundthe problem, left cylinder piston rings. I changed the butterfly seals which were missing...
    Post by: alexdc03, Oct 14, 2009 in forum: XJ Technical Chat
  12. alexdc03
    Post

    carb syncing

    I forgot to mention it's for a XS400 twin, the YICS ports are built in to the intake side of the head. As far as I know there is no tool...
    Post by: alexdc03, Oct 11, 2009 in forum: XJ Technical Chat
  13. alexdc03
    Thread

    carb syncing

    Is it easier to just bench sync my carbs and leave it since it has the internal YICS ports or use my carbtune and sync them?
    Thread by: alexdc03, Oct 10, 2009, 14 replies, in forum: XJ Technical Chat
  14. alexdc03
    Post

    How do my plugs look

    My needles are 4HZ21 The only manual I have for my bike is the '82 Seca 400, it list the needle for that motor at 4HZ20. I am guessing mine...
    Post by: alexdc03, Oct 5, 2009 in forum: XJ Technical Chat
  15. alexdc03
    Post

    How do my plugs look

    I hear what your saying. I am going to put the seals in tonight since the carbs are already apart and ready for them. I have probed around...
    Post by: alexdc03, Oct 5, 2009 in forum: XJ Technical Chat
  16. alexdc03
    Post

    How do my plugs look

    I am going to keep looking for the leak but a for the back of the monifolds I ran a bead of threebond on them before mounting them back to...
    Post by: alexdc03, Oct 3, 2009 in forum: XJ Technical Chat
  17. alexdc03
    Post

    How do my plugs look

    Did the compression check, right cylinder is 165psi and left is 157psi. I order new butteryfly seals which will be here on Monday.
    Post by: alexdc03, Oct 3, 2009 in forum: XJ Technical Chat
  18. alexdc03
    Post

    How do my plugs look

    So the greese thing didn't help so I am guessing I'll need to pull the carb back apart to see what going on. One thing I noticed is the left side...
    Post by: alexdc03, Sep 29, 2009 in forum: XJ Technical Chat
  19. alexdc03
    Post

    How do my plugs look

    I don't think I have ever seen an engine speed up from carb cleaner, mostly they stumble and die. My rigth carb is not to bad but the left side I...
    Post by: alexdc03, Sep 29, 2009 in forum: XJ Technical Chat
  20. alexdc03
    Post

    How do my plugs look

    This bike only has 9000miles on it so its worth putting the extra effort in to it to make her run right.
    Post by: alexdc03, Sep 29, 2009 in forum: XJ Technical Chat
  21. alexdc03
    Post

    How do my plugs look

    And we have a winner..... drum roll please.... throttle plate shaft seals. Time to order some new ones. I took carb cleaner and shot directly at...
    Post by: alexdc03, Sep 29, 2009 in forum: XJ Technical Chat
  22. alexdc03
    Post

    How do my plugs look

    Those plugs were from driving but if I let it idle I get some light browning on the insulator. Tomorrow I'll give the mixture screw more out and...
    Post by: alexdc03, Sep 28, 2009 in forum: XJ Technical Chat
  23. alexdc03
    Thread

    How do my plugs look

    My carbs were very dirty on my'84 XS400, half of the needle jet holes were plugged, mixture screw o-rings half missing and the wrong main jet....
    Thread by: alexdc03, Sep 28, 2009, 36 replies, in forum: XJ Technical Chat
  24. alexdc03
    Thread

    fuel line size

    Anyone know what size of fuel line I need for my '84 XS400, I forgot to bring my piece with me.
    Thread by: alexdc03, Sep 28, 2009, 2 replies, in forum: XJ Technical Chat
  25. alexdc03
    Post

    Okay, what's white with brown specs?

    When I was trying to find a vacuum leak on my bike I was spraying carb cleaner all over the boots I couldn't find a leak until I got spray above...
    Post by: alexdc03, Sep 27, 2009 in forum: XJ Technical Chat
  26. alexdc03
    Post

    left or right carb

    Thanks
    Post by: alexdc03, Sep 26, 2009 in forum: XJ Technical Chat
  27. alexdc03
    Thread

    left or right carb

    When they say left carb in the manual is it the left side if your sitting on the bike? My carbs on the xs400 take a 127 main on the left carb...
    Thread by: alexdc03, Sep 26, 2009, 3 replies, in forum: XJ Technical Chat
  28. alexdc03
    Post

    WHOA! I gotta get me one of THESE!

    I have a carbtune, works flawless.
    Post by: alexdc03, Sep 25, 2009 in forum: XJ Technical Chat
  29. alexdc03
    Thread

    Replacement pistons

    Does anyone know of a aftermarket company selling XS400 pistons for my '84 Maxim? I have a bit of piston knock on the right cylinder when it's...
    Thread by: alexdc03, Sep 12, 2009, 0 replies, in forum: XJ Technical Chat
  30. alexdc03
    Thread

    Timing chain adjustment

    Anyone know the process for adjusting the timing chain on a '84 xs400 maxim? The service manual I have mentions nothing about how to check or...
    Thread by: alexdc03, Sep 9, 2009, 1 replies, in forum: XJ Technical Chat
  31. alexdc03
    Thread

    valve cover

    Will it make a mess if I idle my xs400 motor with the valve cover removed.
    Thread by: alexdc03, Sep 4, 2009, 4 replies, in forum: XJ Technical Chat
  32. alexdc03
    Post

    Feeler gauges - valves

    Yeah 0.7mm
    Post by: alexdc03, Sep 3, 2009 in forum: XJ Technical Chat
  33. alexdc03
    Thread

    Feeler gauges - valves

    When measuring the valves with a feeler gauge, how hard do you try and put a feeler through the opening. On my exhaust valve I get a slight bit...
    Thread by: alexdc03, Sep 3, 2009, 10 replies, in forum: XJ Technical Chat
  34. alexdc03
    Post

    This bike sucks!

    Also behind the vacuum fitting on the petcock(unscrew the fitting) there is a small disc used to stop any back firing up the vacuum line from the...
    Post by: alexdc03, Sep 3, 2009 in forum: XJ Technical Chat
  35. alexdc03
    Post

    Floats are sinking?

    Do these carbs have a vent line in between carb 1 & 2 and 3 & 4 up near the tops? These carbs look like the kind on my Ninja and the PO had...
    Post by: alexdc03, Sep 3, 2009 in forum: XJ Technical Chat
  36. alexdc03
    Post

    blue header pipes

    They have always been blue but the left seems to have grown in the area where the blue appeared. I have only had this bike a month or so. After...
    Post by: alexdc03, Sep 2, 2009 in forum: XJ Technical Chat
  37. alexdc03
    Thread

    blue header pipes

    Anyone else have blue header pipes on there air cooled engine? My carbs are clean and set to spec except I have the mixture screw at 3.25...
    Thread by: alexdc03, Sep 1, 2009, 6 replies, in forum: XJ Technical Chat
  38. alexdc03
    Post

    valve noise

    Ok I won't sweat it then, once warm it just runs fine with normal sounds.
    Post by: alexdc03, Aug 29, 2009 in forum: XJ Technical Chat
  39. alexdc03
    Thread

    valve noise

    During the engine warm up from a cold engine I get a couple of vavles making a lot of noise, this noise is gone once the engine is up to proer...
    Thread by: alexdc03, Aug 29, 2009, 2 replies, in forum: XJ Technical Chat
  40. alexdc03
    Thread

    float bowl question

    My float needle has slight wear groove in it so gas will seep to the piston, do I replace just the needle or do I need to replace the seat also?...
    Thread by: alexdc03, Aug 26, 2009, 1 replies, in forum: XJ Technical Chat
  41. alexdc03
    Post

    valve clerance numbers

    Same numbers I get
    Post by: alexdc03, Aug 26, 2009 in forum: XJ Technical Chat
  42. alexdc03
    Post

    valve adjustment

    ok so the specs I get are left exhst 0.007 left intk 0.006 right exhst 0.006 right intk 0.004 So I am using inch feeler gauges,...
    Post by: alexdc03, Aug 26, 2009 in forum: XJ Technical Chat
  43. alexdc03
    Thread

    valve clerance numbers

    I am trying to find the spec for the valves in a '84 xs400 maxim, I have the number from an '82 xs400 seca but I cannot tell if they are the same...
    Thread by: alexdc03, Aug 26, 2009, 3 replies, in forum: XJ Technical Chat
  44. alexdc03
    Post

    valve adjustment

    I ordered the special hold down tool for the valve which should be in tomorrrow. I know I have at least 2 valves out of spec, one makes noise...
    Post by: alexdc03, Aug 25, 2009 in forum: XJ Technical Chat
  45. alexdc03
    Thread

    valve adjustment

    So it's time to adjust my valves on the '84 400 maxim, where's a good place to get the tool that holds down the spring and also where to get the...
    Thread by: alexdc03, Aug 23, 2009, 9 replies, in forum: XJ Technical Chat
  46. alexdc03
    Post

    '84 Maxim 400 float height

    I took a small piece of vinyl tubing and used electrical tape to make up the difference in size and it worked perfect, my floats are set within...
    Post by: alexdc03, Aug 20, 2009 in forum: XJ Technical Chat
  47. alexdc03
    Post

    Clutch....

    With the rear wheel in the air and the clutch cable pulled in the wheel may still spin from the friction of the oil between the metal and fiber...
    Post by: alexdc03, Aug 20, 2009 in forum: XJ Technical Chat
  48. alexdc03
    Post

    '84 Maxim 400 float height

    I have a few extra pieces of vinyl tubing around, going to give that a try.
    Post by: alexdc03, Aug 20, 2009 in forum: XJ Technical Chat
  49. alexdc03
    Post

    '84 Maxim 400 float height

    Ok but that gives me another problem finding the brass spouts that go in to the float bowl drain holes, I have none to put a tube on?
    Post by: alexdc03, Aug 20, 2009 in forum: XJ Technical Chat
  50. alexdc03
    Thread

    '84 Maxim 400 float height

    Anyone know off hand what the float height on the '84 maxim 400 DOHC would be, the manual only gives the external measurement using the float bowl...
    Thread by: alexdc03, Aug 20, 2009, 6 replies, in forum: XJ Technical Chat
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