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Thread: XR250R Mod thread

  1. #21
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    Quote Originally Posted by Markw View Post
    Jav- Did you finish re-jetting the XR? Any update?
    ----------------
    2008 R1200GS | 2009 NSF100 | 2009 CRF250X | 2011 Address V125S


  2. #22
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    Quote Originally Posted by Markw View Post
    Jav- Did you finish re-jetting the XR? Any update?
    He did, I just filmed him yesterday testing it.


  3. #23

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    Apexmoto Inc - Dyno tuning, engine/chassis/suspension upgrades, repairs, shaken, tires & changing with balancing, graphics printing, stickers, media blasting, painting & powder coating.

  4. #24
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    Default XR250R Mod thread

    Quote Originally Posted by Twinrider View Post
    He did, I just filmed him yesterday testing it.

    Looking good. Much better without the luggage paraphernalia...
    Last edited by Markw; 28-05-14 at 09:38 PM.

  5. #25
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    Quote Originally Posted by Markw View Post
    Looking good. Much better without the luggage paraphernalia...
    Says the guy who can't haul a tent and has to seek refuge in a hotel like a girlie man :o

  6. #26
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    Quote Originally Posted by Twinrider View Post
    Says the guy who can't haul a tent and has to seek refuge in a hotel like a girlie man :o
    Says he who used a backpack instead of his luggage system on the last ride at Chichibu

    Never been a fan of loading up off-road bikes with mountains of luggage. Makes the bike handle like crap, difficult to get on and off the bike and top heavy. Don't see the need when I can carry everything I need (food, drink, waterproofs and tools) in a small backpack and keep the weight of the bike to a minimum...

  7. #27

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    And so said the grumpy old men
    Apexmoto Inc - Dyno tuning, engine/chassis/suspension upgrades, repairs, shaken, tires & changing with balancing, graphics printing, stickers, media blasting, painting & powder coating.

  8. #28
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    Default XR250R Mod thread

    On the other hand, this would make lunch breaks and slabbing it back home much more comfortable:

  9. #29
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    Default XR250R Mod thread

    Getting back on topic- Jav, any update on the jetting and post tune dyno results?

  10. #30
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    Quote Originally Posted by Markw View Post
    Says he who used a backpack instead of his luggage system on the last ride at Chichibu

    Never been a fan of loading up off-road bikes with mountains of luggage. Makes the bike handle like crap, difficult to get on and off the bike and top heavy. Don't see the need when I can carry everything I need (food, drink, waterproofs and tools) in a small backpack and keep the weight of the bike to a minimum...
    You're confusing day touring with overnight rindo touring camp trips. Riding and sleeping in the woods, Special Forces style with knives, meat and fire....

    Anyhow, it's high time we got back on topic!

  11. #31
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    Default XR250R Mod thread

    Quote Originally Posted by Twinrider View Post
    You're confusing day touring with overnight rindo touring camp trips. Riding and sleeping in the woods, Special Forces style with knives, meat and fire....
    OK, I understand now. Something like this would be an ideal setup. Just need to slip some MT21s on:


  12. #32
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    this is my new system. will try it out for the June 7th rindo tour and camp

    http://www.altrider.com/altrider-hem...lebag/pid/1467



  13. #33
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    Quote Originally Posted by Markw View Post
    OK, I understand now. Something like this would be an ideal setup. Just need to slip some MT21s on:




    That's not bad a two-up overnighter. But for a 10 day Hokkaido rindo tour this would be better.


  14. #34
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    Quote Originally Posted by haildamage View Post
    this is my new system. will try it out for the June 7th rindo tour and camp

    Is that a parachute on the back???

  15. #35
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    Quote Originally Posted by haildamage View Post
    this is my new system. will try it out for the June 7th rindo tour and camp

    http://www.altrider.com/altrider-hem...lebag/pid/1467


    Wow never seen this part of Shikoku before!

  16. #36

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    Order a carb kit from the US and they sent the wrong kit!!!!!!!!!!!!!!!!! GRRRRRRRRRRRRRRR basdits.
    So drilled out the main jet from 1.2mm to 1.5mm as i was bored and somewhat annoyed, having pulled
    the carb.

    On the dyno made no more power so still at 19.xxhp but when the charts are overlaid, the bike makes the
    power much quicker ie at earlier rpm. So across the rpm range the bike makes about 2 to 2.5hp more than it did stock, up to
    the same peak ( earlier in the rpm ). It feel it too, as the suspension compresses quicker on the dyno.
    The drilled jet is way too rich above 4,000rpm so i cam seeing 10:1 ( mad ) and it is killing the top end.
    With the correct jet, expect to see between 22hp and 23hp.

    Will post dyno chart on the weekend. Now just need to order correct jets.

    XR250R carb removal sucks as it is further back in the frame that on a Djebel or Serow.
    Apexmoto Inc - Dyno tuning, engine/chassis/suspension upgrades, repairs, shaken, tires & changing with balancing, graphics printing, stickers, media blasting, painting & powder coating.

  17. #37
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    Default XR250R Mod thread

    That's a PITA :-(

  18. #38
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    Default XR250R Mod thread

    Sorry to hear it...I'm sure it will am be worth it in the end.
    ...speak softly and pack an obscenely large hammer...

  19. #39
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    Quote Originally Posted by Jav View Post
    Order a carb kit from the US and they sent the wrong kit!!!!!!!!!!!!!!!!! GRRRRRRRRRRRRRRR basdits.
    So drilled out the main jet from 1.2mm to 1.5mm as i was bored and somewhat annoyed, having pulled
    the carb.

    On the dyno made no more power so still at 19.xxhp but when the charts are overlaid, the bike makes the
    power much quicker ie at earlier rpm. So across the rpm range the bike makes about 2 to 2.5hp more than it did stock, up to
    the same peak ( earlier in the rpm ). It feel it too, as the suspension compresses quicker on the dyno.
    The drilled jet is way too rich above 4,000rpm so i cam seeing 10:1 ( mad ) and it is killing the top end.
    With the correct jet, expect to see between 22hp and 23hp.

    Will post dyno chart on the weekend. Now just need to order correct jets.

    XR250R carb removal sucks as it is further back in the frame that on a Djebel or Serow.
    Hope you're still planning on joining tomorrow, sounds like it's making enough power to be fun.

  20. #40

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    Picked up an FCR33 so will fit that next week and start the tuning process.
    Apexmoto Inc - Dyno tuning, engine/chassis/suspension upgrades, repairs, shaken, tires & changing with balancing, graphics printing, stickers, media blasting, painting & powder coating.

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