The XT350 thread

Discussion in 'Thumpers' started by Burtonridr, Sep 26, 2007.

  1. Suva

    Suva 57

    Joined:
    Oct 23, 2006
    Oddometer:
    200
    Location:
    North Idaho
    Anybody have a flywheel puller and/or the plate that all the stator goodies bolts to? the ear that my pickup coil bolts to is mysteriously broken. '85 model if it matters.
  2. endurokids

    endurokids Adventurer

    Joined:
    Aug 7, 2010
    Oddometer:
    11
    Location:
    Wisconsin
    I just purchased a 90 XT 350 and am redoing the forks. I know about the 15 weight oil but how much do I add?
    What size PVC pipe do I get to make the 1" spacer?
    Any suggestions on the rear shock? Replace the spring, or replace the shock? Were do I look for a good shock that will work well offroad?
    What is the stock exhaust mod? I want quiet not loud.
    Any other mods for better power?
    What about jetting and air box mods?
    What are the recomendations for the 520 chain swap?
    I'm sorry if all of this has been covered here, but it is a big thread and I would be thankfull if you could help me sort it out.
    Thanks in advance.
  3. PCK_4xCustoms

    PCK_4xCustoms lost

    Joined:
    Apr 25, 2010
    Oddometer:
    271
    Location:
    Back in the city :( Livonia MI
    couldnt agree more with endurokids.


    All the info has been covered, and I've seen it, just couldn't say where to find it in the almost 100 pages in this thread. And I'm wondering the same things on the more power mod side.
  4. alprosound

    alprosound HappyMan

    Joined:
    Jun 6, 2007
    Oddometer:
    498
    Location:
    Minnesota
    Just an FYI. My son is parting out his 94 XT. Haven't put it up on Ebay yet so if anyone is looking for parts let me know. This bike was in mint condition....
  5. endurokids

    endurokids Adventurer

    Joined:
    Aug 7, 2010
    Oddometer:
    11
    Location:
    Wisconsin
    Any help would be awesome!
    I really like the bike and it went ok offroad on some mild trails, exept for the fact that oil was completely missing from my forks. :eek1
  6. xt4ever

    xt4ever Adventurer

    Joined:
    Jan 26, 2010
    Oddometer:
    80
    Location:
    Z, Spain
    All the questions you're asking have been answered here. If you want to learn a lot about your bike and mods, read the whole thread. It takes no more than two/three hours of very good reading.

    -JL
  7. Psycho18th

    Psycho18th Been here awhile

    Joined:
    Dec 19, 2009
    Oddometer:
    551
    Location:
    Phoenix, AZ
    Agree with that, but it's more than a couple hours of reading...
    Try using the Google search functions.
    If your forks have no oil, then you should service them up to stock performance with new seals/wipers/oil prior to modifying. I went with the heavier fork oil, but stock amount. Depending on the year of your XT, you can adjust the air pressure very slightly via the schrader valves on the fork caps. I think it was 1.25 inch PVC, but can't remember of the top of my head, definitely worth searching there.

    You can't really modify the shock much. Recent posts had some sugestions for replacement shocks. Bottom line is that it's no motocrosser, and sticking relatively close to stock settings with some stiffening up of the front is probably the best bet, otherwise you'll be throwing a lot of time and money into modification of an outdated design.

    Not sure of a mod to the stock exhaust. It's darn quiet and flows well enough, just darn heavy. The other option is the loud IDSEII sold on Ebay, or fabbing up a can from a different bike into the stock header. There are some other options (Arrow maybe?) in Europe.

    There are a hundred jetting posts, but adding some very small spacers to the clip and swapping a larger main (from the XT600 I think) is the easiest set-up, especially if you remove the snorkel in the intake and put on a more open exhaust.

    Again, reading this thread and investing in a Clymer repair manual will be very worth your time and money.

    Psycho
  8. Aivasovsky

    Aivasovsky Been here awhile

    Joined:
    Jun 10, 2008
    Oddometer:
    155
    Location:
    Istanbul
    Some more charging coil re-winding pics.

    See the lightning branch cable at right. It feeds the main light directly AC, without regulator/rectifier.


    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
  9. Aivasovsky

    Aivasovsky Been here awhile

    Joined:
    Jun 10, 2008
    Oddometer:
    155
    Location:
    Istanbul
  10. nails1

    nails1 nails1

    Joined:
    Feb 21, 2008
    Oddometer:
    187
    Location:
    New Mexico
    Just read SKY's posts. That'll save a lot of time.

  11. SkidMarx

    SkidMarx Long timer

    Joined:
    Mar 27, 2006
    Oddometer:
    3,080
    Location:
    Ortonville, MI
    That pretty much sums it up.
    The only addition I have is to turn th Pilot screw out a bit. Set it to about 3 to 3 1/2 turn out from bottom. It should start and idle much better.
    Another supertrapp option is to go with their older style can and bend up a mid pipe. They used to offer one with the midpipe for the XT350 but they don't anymore. I had one and ran it with 6 disks and it wasn't very loud. I'd still be running it if someone hadn't stolen it(the muffler, not the bike).
  12. Aivasovsky

    Aivasovsky Been here awhile

    Joined:
    Jun 10, 2008
    Oddometer:
    155
    Location:
    Istanbul
    Hi All! :rayof

    I need help about identifying some small parts.

    My gasket kit has arrived today.

    [​IMG]

    There was four identical pieces which i couldn't figure out where to use them.

    [​IMG]

    Does anybody have an idea where to use them?

    Maybe my engine had them when original but when i bought they should be absent.

    here we have the parts pic:
    http://images.cmsnl.com/img/partslists/cylinder-head-xt350e-1993_bigyau1201a-5_f45e.gif


    and the main page of the top end parts:
    http://www.cmsnl.com/yamaha-xt350e-1993_model10017/partslist/A-05.html


    and these are the pics from my bikes engine:

    [​IMG]

    [​IMG]


    [​IMG]


    [​IMG]

    [​IMG]
  13. xt4ever

    xt4ever Adventurer

    Joined:
    Jan 26, 2010
    Oddometer:
    80
    Location:
    Z, Spain
    Hey SKY!

    These are the valve stems (seals), item #6 in the following image:

    [​IMG]

    Usually, if the bike doesn't smoke you wouldn't want to replace them.

    HTH
    -JL
  14. Aivasovsky

    Aivasovsky Been here awhile

    Joined:
    Jun 10, 2008
    Oddometer:
    155
    Location:
    Istanbul
    Thank you mate! :thumb

    SKY



  15. SkidMarx

    SkidMarx Long timer

    Joined:
    Mar 27, 2006
    Oddometer:
    3,080
    Location:
    Ortonville, MI
    Sky,
    Looks like you're missing a couple of the little black plugs in the cam caps.
    Pretty sure they are important for proper cam lubrication.
  16. Aivasovsky

    Aivasovsky Been here awhile

    Joined:
    Jun 10, 2008
    Oddometer:
    155
    Location:
    Istanbul
    Thanks Skid! :thumb

    Two of them were missing when i first bought this bike.
    I made same plugs from white plastic.
    They are not easily visible in the photo.

    Thanks a lot for reminding anyway

    SKY

  17. Aivasovsky

    Aivasovsky Been here awhile

    Joined:
    Jun 10, 2008
    Oddometer:
    155
    Location:
    Istanbul
  18. alprosound

    alprosound HappyMan

    Joined:
    Jun 6, 2007
    Oddometer:
    498
    Location:
    Minnesota
    I have a Clymer that's been quite useful but don't have time to send you pages, sorry. We will be selling it after we've stripped the useful parts from his bike and sold them off. Should be sometime in September if you can wait. Sorry I can't send you pages right now but I'm trying to get out of town and my work load is stupid!
  19. nails1

    nails1 nails1

    Joined:
    Feb 21, 2008
    Oddometer:
    187
    Location:
    New Mexico
    I've gotten a lot of use from Clymer, a 1985 service manual, and a parts manual. Found all in webistan. I doubt if any are 100% right.
  20. J-Ball

    J-Ball Been here awhile

    Joined:
    Aug 3, 2008
    Oddometer:
    164
    Location:
    Llano County, TEXAS
    Back2TX
    -Welcome back, if ya ever wanna bring your XT to the hill country and ride lemme know. Camping and great riding all around!

    XT4Ever
    + 1 on the Supertrapp
    -1 on removing the snorkel. My bike never seemed to like that. I'm running a UNI filter with the door off + Supertrapp w/ 8 disks, proper (?) jetting. My bike-y likes, and so do I.

    Skid, someone stole your muffler?!? Damn, that sucks.:huh