The official XT225 thread!

Discussion in 'Thumpers' started by wickerman777, Nov 4, 2006.

  1. Capt_phun

    Capt_phun Been here awhile

    Joined:
    Sep 15, 2012
    Oddometer:
    118
    Location:
    Boston, MA
    Did the Z1, no snorkel, 130 main, 42.5 pilot, 3 turns out, added inline fuel filter, change float height from 12.5 to 14.5, uni filter.

    The past two mornings, it has been colder in the Boston area. Was a real pain to get the bike turned over, thought I might drain the battery. It's never been this hard to start.
    spark plug is a nice brown. Definitely don't feel the heat off the engine like I used to when it was at stock settings, so feels like the lean condition has been addressed. I read lots of posts about closing the fuel petcock overnight, so I will start doing that.
    Anything else it could be? I'm at 17' above sea level. 2006 xt225. Was thinking the routing of the fuel filter might be causing it? Maybe take it out, put in a new piece of fuel line as a test? Anyone??
  2. woofer2609

    woofer2609 Been here awhile

    Joined:
    Sep 7, 2011
    Oddometer:
    853
    Location:
    Extreme Pacific SouthWest (of Canada)
    I am at 20' above sea level on the other coast. Bike is mostly stock. OK, all stock with the pilot screw out 1.75 turns. I found a few things help with cold starts.
    I have a battery tender,
    I start the bike at least once a week regardless of whether I ride it away or not, until it warms up.
    I found synthetic oil helped a lot, but as mentioned in my post earlier, I am still curious about wether the synthetic seeps past the rings easier resulting in oil consumption.
    I PERSONALLY did not find shutting off the fuel helped much, but it didn't hinder much either.
    Mine still is fussy, and I find I do not crack the throttle at all until it has definitely "caught" and is turning over well.
  3. woofer2609

    woofer2609 Been here awhile

    Joined:
    Sep 7, 2011
    Oddometer:
    853
    Location:
    Extreme Pacific SouthWest (of Canada)
    I don't know if I could handle the power!:rofl
    Just curious about possible cost and is one responsible to find their own rings?
  4. Tom S

    Tom S Can I ride it?

    Joined:
    Oct 16, 2004
    Oddometer:
    4,638
    Location:
    Anchorage Alaska
    I know of no reason to believe that.
  5. Speedo66

    Speedo66 Transient

    Joined:
    Jan 14, 2010
    Oddometer:
    6,971
    Location:
    Cin City, OH
    My speedometer stopped working after a 225 mile mostly dirt ride.

    I checked the cable and it looked good. Then chucked it in a drill and reverse showed the speedometer itself was working fine.

    Thanks to your post I took the wheel unit apart, tough to do without a pair of snap ring pliers. :D Same condition, loaded with brown crap. Cleaned it all out and checked the parts. The brass ring that engages the wheel was a little bent. Hammered it back to flat and threw some wheel bearing grease in there.

    Your photo saved me, didn't remember the order things went back in, with the grease I couldn't see the flats on the gear and the brass ring.

    It didn't seem like I did very much, but when reassembled, a quick run showed the speedometer was working again.

    Thanks for your excellent write up and pictures! :clap
  6. turbo3x

    turbo3x Adventurer

    Joined:
    Jun 10, 2009
    Oddometer:
    14
    Location:
    Salem NY
    Pistons come with rings and will sell for around $100.00 :clap
  7. KamperBob

    KamperBob Recreation Engineer

    Joined:
    Jul 26, 2009
    Oddometer:
    254
    Location:
    Somewhere USA
    I'm curious about the jug over bore side of this mod. What's the skinny on that? :b
  8. GlennR

    GlennR Playin' in the Fire

    Joined:
    Nov 4, 2010
    Oddometer:
    2,267
    Location:
    Boone,NC

    I was wondering the same thing. What's it cost of get it bored & re- Nicosil coated?
  9. turbo3x

    turbo3x Adventurer

    Joined:
    Jun 10, 2009
    Oddometer:
    14
    Location:
    Salem NY
    If you have an older machine with steel liner it's possible to get a maximum over bore to 73mm (241cc).
    It requires a good machine shop that can keep the bore
    centered.
    If you have plated cylinders - I don't have any info for that.
    I have purchased Yamaha ATV steel lined cylinders on Ebay for as little as $25. shipped. Some models are
    stock 70mm and later models stock 71mm

    Presently you can get special ordered 72mm from TKRJ Piston Company in Japan. It does require some language translation to order. (they also make .25mm - .50mm - .75mm and 1.0 starting from std 70mm)
    I am presently communicating with an Ebay seller/TKRJ dealer to stock the 72mm size.

    Presently I am unaware of anyone making any piston over 71 mm that aren't the lower 8.7-1 dish dome style.

    I'm slow on the keyboard but will gladly try to answer any other inquiries .


  10. deodom

    deodom Old Racer

    Joined:
    Jan 3, 2010
    Oddometer:
    105
    Location:
    Ft. Pierce, FL
    Here is one option. Check out their site and call them with any questions:
    http://www.usnicom.com/price.asp
  11. woofer2609

    woofer2609 Been here awhile

    Joined:
    Sep 7, 2011
    Oddometer:
    853
    Location:
    Extreme Pacific SouthWest (of Canada)
    I was curious in this application (air cooled higher mileage engine) because synthetic has a much lower viscosity (flow rate?) at start up temperatures I thought it might be seeping past the rings until operating temperature is reached, leading to increased consumption. I am definitely using oil between changes. I really do notice the improved mileage and much easier cold starts w/ synthetic, however. I'm still trying to understand this synthetic thing, but may switch back to see if it indeed the oil, or this engine is getting tired. (not worried too much now that there is talk of oversized pistons, however!)



    Glad to help! I did have to take it apart one more time to reshape the 3 pronged "thingy", but that really did the trick.
  12. Tom S

    Tom S Can I ride it?

    Joined:
    Oct 16, 2004
    Oddometer:
    4,638
    Location:
    Anchorage Alaska
    No, if it is, say, 10/40, it's 10/40. Whether its synthetic or 'dyno' oil the viscosity is the same.
    It's just that synthetic doesn't flow like molasses when it's real cold. That's real important up here.
    Been using synthetic for many, many years in cars & bikes. Only way to go as far as I am concerned.
    Never noticed any difference in gas mileage or anything else.
    You say your bike has high miles? I think maybe it's just starting to use oil.
  13. Speedo66

    Speedo66 Transient

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    Jan 14, 2010
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    6,971
    Location:
    Cin City, OH
    Yeah, the flats on that 3 prong piece that engage the gear are pretty worn, don't know why they used a soft metal like brass for that application. Lots of play there. I have a feeling it's going to go again soon, may have to file new flats in it.

    My last set of snap ring pliers were 30 year old J.C Whitney crap, which I threw away last year. I'm hesitating buying some from Harbor Freight for the same reason.
  14. woofer2609

    woofer2609 Been here awhile

    Joined:
    Sep 7, 2011
    Oddometer:
    853
    Location:
    Extreme Pacific SouthWest (of Canada)
    That's what I noticed when I took out my 3 pronged thingy the second time, the flats had started to round out. I squeezed it in a vice and it really helped correct the shape. It seems to mate up properly now. I think the reason they went with the cheap soft steel is that it's cheap, and the second thing is it is the sacrificial lamb; it will bend before something else breaks, such as the speedo cable. Just my thoughts.
  15. Reposado1800

    Reposado1800 Juicy J fan!

    Joined:
    Dec 8, 2006
    Oddometer:
    5,806
    Location:
    5th and Main
    Anybody else snapping Buchanan oversize spokes? I have had to replace 2 so far and it has been only street riding. It is a pain because I have to pull the tire to get at the nipple properly.
  16. Dirt2Street

    Dirt2Street Adventurer

    Joined:
    Nov 28, 2012
    Oddometer:
    53
    Location:
    Southern Illinois
    Where can I find filters?
  17. dav_dman

    dav_dman Been here awhile

    Joined:
    Sep 6, 2010
    Oddometer:
    857
    Location:
    louisville ky/southern indiana
    +1 FTW on the Uni's...awesome filters and cheap.
  18. dghuppert

    dghuppert Adventurer

    Joined:
    Aug 9, 2013
    Oddometer:
    14
    Location:
    Nebraska
    Going to replace the battery. Any suggestions? Lithium? Gel?
    Thanks.
  19. Crazy Canadian

    Crazy Canadian All who wander r not lost

    Joined:
    Mar 1, 2009
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    2,028
    Location:
    Soaking up the Southern Californian Sun.
    Got a new rack made by a local guy here in San Diego. The old one was giving the girlfriend issues when she was getting on and off, so it will probably be up in the for sale section shortly. As for this new rack, it isn't quite as giant as the old one but the grocery trip tonight proves it can carry just about as much.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    Old rack...
    http://www.advrider.com/forums/showpost.php?p=19743144&postcount=7695
  20. Crazy Canadian

    Crazy Canadian All who wander r not lost

    Joined:
    Mar 1, 2009
    Oddometer:
    2,028
    Location:
    Soaking up the Southern Californian Sun.
    If there is a cyclegear near you, they have a battery that includes a lifetime, unlimited mileage warranty and when it goes bad just walk in and they will give you a new one.