The XT550 Thread: Info, Stories and Mods Inside!

Discussion in 'Thumpers' started by XTwarrior, Feb 16, 2010.

  1. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    Which line is the strainier in? There are several hoses so I've no idea what does what besides the obvious return line that runs under the engine.
  2. netjustin

    netjustin b00b

    Joined:
    May 15, 2009
    Oddometer:
    89
    Location:
    Monterey, CA USA
    newt_sr is spot on--every 2500mi. I cured a very uninspiring top end clatter on the xt with a proper valve adjustment.

    on a side note, I am working on shrinking my 550 service manual to hopefully around 10meg. A link to the file will be available once it's finished (later today) if anyone is interested send a PM my way.
  3. netjustin

    netjustin b00b

    Joined:
    May 15, 2009
    Oddometer:
    89
    Location:
    Monterey, CA USA
    I tried to this sob off my bike and gave up with no success. i stopped applying more torque due to fear alone. too bad the motor mount covers this thing up otherwise you could do this operation with some confidence.
  4. Zecatfish

    Zecatfish XTique Rider

    Joined:
    Dec 30, 2006
    Oddometer:
    7,927
    Location:
    Arkansas USA
    The strainer is in the bottom of the frame downtube oil tank.
  5. newt_sr

    newt_sr "Get off!" ...Walter

    Joined:
    Feb 18, 2010
    Oddometer:
    124
    Location:
    Oregon
    Oil travels from the oil reservoir down the frame and to the 'nipple hose'. That's where the strainer is, in the end of the hose (under the frame support bracket - for lack of a better term).

    Dang, too slow...sorry Zecatfish.
  6. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    Ahh sweet, thanks guys! I'll probably pull that strainer monday night or Tuesday morning because I might have an idea what it is clogging it, if it is clogged. I mayfind some copper gasket sealant stuck in there :rofl (hoping not)
  7. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    This isn't a good picture but I forgot my camera and this is the best that has been posted from the group ride. 26 bikes total, 3 tourers, 1 cruiser, me, and 21 sport bikes. I stayed middle to back but a ninja 600RR had me at about 105 speedo indicated on his bike, which seems high. Probably more like 95, which still makes you feel like a kite :rofl

    [​IMG]
  8. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    Sitting at the office staring out at the beautiful weather that would be perfectly suited for working on the XT. Why did I put in for overtime again? Oh, that's right. I'm broke.
  9. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    Some exciting news for those of you who like to wrench but may not have a service manual for the XT550 (Such as myself); A member on here (Netjustin) has compiled and edited a version of the Service Manual for the XT community to use!

    I'll be checking the PDF file later tonight, and finding a place to host it. As soon as I have everything up and running, I'll update the links in post 1 to reflect the new community manual!

    Note Post 1 under the Flyers and Manuals link that it is in Yellow at this time.
  10. motorcyclefanatic

    motorcyclefanatic The name says it all

    Joined:
    Jul 17, 2007
    Oddometer:
    754
    Location:
    Christmas, FL; Blue Ridge, Ga
    Just wanted to get in on this. Looks like a good exchange of info on the XT. Mines an '82, new to me in '87. Fantastic old dual-sport, it will have a space in my garage for life.
    [​IMG]
  11. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    Welcome motorcyclefanatic! :clap That's a fine XT you got there, looks like it managed to avoid crashes in it's life :D

    The thread is here for use, so don't hesitate to ask questions or post up new ride photos or stories; I know I sure don't :lol3


    Question for you guys; Has anyone tried to go larger on the rear or the front tire? I'm a ways off for a new rear tire, but I was thinking I'd like to get a little more tread hitting the pavement, and with the road tire it seems like there is some room to work with. What would a step to widen the contact patch a bit? I'm not that good with tires sizing, the stocker is 120/90-18. If I remember correctly, 120 is the contact area, and 90 stands for the percetnage of the contact area that the sidewall is. 20 90% of 120 = 108, so the wheel would be 120mmx108mm - 18"?
  12. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    Alright guys, service manual is up on the first page! I'm not sure how megaupload.com works, but it is now ready for download. Please download it and let me know how it works out for you so I can get some feedback.

    http://www.megaupload.com/?d=XGH4OVO0 - XT550J Service Manual Netjustin style!

    (EDIT: There is a 45 second wait for the download to begin; once that is over click Regular Download which is a black bar. A popup will occur with a sponsored link and then the normal Windows download/run option will pop up. Ignore the popup and click save. A little hassle for a big payoff, Enjoy!)
  13. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    For everyone to see regarding newt/Zecat's post about circulation:

    [​IMG]
  14. G600

    G600 Been here awhile

    Joined:
    May 18, 2009
    Oddometer:
    464
    Location:
    Iceland
    Nice bike!!

    What white thingy do you have strapped to the frame right under the gastank?
  15. clc3251

    clc3251 Adventurer

    Joined:
    Aug 29, 2009
    Oddometer:
    11
    Wow, am I jealous. I graduated high school in 1987. I took every penny I had and bought the same bike. I quit my job and rode the piss out of it all summer before college. Sold it in the 90s and have regretted it ever since.
  16. xlv

    xlv Been here awhile

    Joined:
    Nov 12, 2004
    Oddometer:
    249
    Location:
    Sweden
    So how can i tell if i have a CDI problem or if it is just the carbs that makes the bike cut out in higher revs ? It has a new piston and reworked head with new valveseals so it´s in good shape otherwise.

    /M
  17. motorcyclefanatic

    motorcyclefanatic The name says it all

    Joined:
    Jul 17, 2007
    Oddometer:
    754
    Location:
    Christmas, FL; Blue Ridge, Ga
    I had the CDI fail on my XT once back in the 90's, wouldn't run at all. That's been my experience with other CDI failures over the years as well (GSF400 & VTR250 most recently). When they go the bike is dead.
  18. XTwarrior

    XTwarrior My bike is older than me

    Joined:
    Jul 21, 2007
    Oddometer:
    281
    Location:
    Allentown PA
    This; when my stock CDI failed on me it cut out during a second gear pull and sputtered to a stop. It never started again until I got the hyperpak CDI.

    If it is cutting out up top, I'd imagine a fueling issue (if it is drastically cutting off; IE sputtering until it comes back down).
  19. G600

    G600 Been here awhile

    Joined:
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    Oddometer:
    464
    Location:
    Iceland
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font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} .MsoPapDefault {mso-style-type:export-only; margin-bottom:10.0pt; line-height:115%;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> </style><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} </style> <![endif]--> Pfff... a problem like that can be a pain to figure out.
    <o:p> </o:p>
    Is the bike new to you? Was it working right at some point or has it always acted like this?
    <o:p> </o:p>
    Here is one thing to check if your bike is an ’82 model. When the xt550’s first came in ’82 they had a design flaw in the carbs. The fuel flow to the second (vacuum) carburetor was restricted. Under modest loads the engine would run normally, but at heavy throttle the second carburetor could run out of fuel.
    <o:p> </o:p>
    Yamaha sold a kit to solve this problem. It is unlikely that this problem has not been solved in a 28 year old bike. If your XT is an ’82 that is. But then, I have seen stranger things.
  20. xlv

    xlv Been here awhile

    Joined:
    Nov 12, 2004
    Oddometer:
    249
    Location:
    Sweden
    Thank´s
    The bike isn´t really new to me, i have owned it twice but i think it allways have had this problem exept i didn´t pay mutch attention to it earlier but now i feel like it has gotten worse, it´s an -83 modell. Guess i better tear into the carb,s and take a look.

    /M