Yamaha WR250R Mega Thread

Discussion in 'Thumpers' started by Sock Monkey, Apr 7, 2008.

  1. DaymienRules

    DaymienRules Traffic target

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    FWIW, I always order the chain too long, like 116. Its only a few bucks more. Then use the chain breaker tool to pull the extra links out.Now you have spare links for the tool kit, guaranteed to fit your existing chain. And a 2nd(maybe even a 3rd) masterlink to make trail side repair that much easier. Not that I've ever had a chain need repair.
  2. bhd1223

    bhd1223 Been here awhile

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    I'm guessing your tool isn't simply a breaker and is also used for installing rivet links? Do you just keep extra pins handy to rivet the links on? This wouldn't work for me as my breaker is just a breaker. I use clip links and just buy a few when I get a new chain. Problem solved.
  3. NL-Patrick

    NL-Patrick Adventurer

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    The answer is probably somewhere in the 2000+ pages of this thread but that's gona take a while....

    How high can handlebar risers be , before the cables become to short?

    Gr. Patrick
  4. jon_l

    jon_l Long timer

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    Wow, thanks for all the sprocket and chain feedback guys!
  5. Krabill

    Krabill Long timer

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    I run 13/47 with 110 links and have ordered a couple extra masterlinks to keep in my tool kit.
  6. Daamud

    Daamud Life is like a box of Old Milwaukee

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    .
  7. thumpididump

    thumpididump MacGyver

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    You can safely increase the height by 1 1/2" without getting into trouble. Any more than that, and you'll be looking for longer clutch & throttle cables and brake hose.



  8. Gryphon12

    Gryphon12 Long timer

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    I try to take notes when I see important information discussed here, so that I don't have to search 2000+ pages. Sometimes I make mistakes, however.

    I believe that the stock chain is 110 links for stock 13/43 gearing on the WRR. Is this accurate?

    I have notes from two different inmates regarding chain length for 13/47 gearing. One says 110 and one says 112 links. So, is the 13/47 sprocket set the transition point from 110 to 112, with some adjustability left for stretching with wear?

    All my notes for 13/48 or larger say 112 links, until I get to 14/52 where I have a blank. 14/50 apparently works with 112 links. 14/52 (3.71:1) is really close to 13/48 (3.69:1), the latter of which uses 112 links. But 4 more teeth on the primary sprocket seems like a big step up. Will 112 links cover it?

    13/52 (4.00:1) and 13/54 (4.15:1) are the shortest gearing ratios I have seen discussed on this thread. I can't see ever need them myself, but someone has tried and found them useful. Does 13/54 required a chain longer than 112 links?
  9. Nice_Rumble

    Nice_Rumble Long timer

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    108 links
  10. HardWorkingDog

    HardWorkingDog Harvey Mushman

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    This may be a good place to add a recommendation to use http://www.gearingcommander.com/

    Extremely useful when figuring out this kind of stuff. Has accurate data on WRR/X stock gearing/chain length/tires to use as a base. The big takeaway for me is that talking about gearing is pointless without including tire diameter (or circumference). It will also allow you to calculate what chain length is required for a given sprocket combo.
  11. Gryphon12

    Gryphon12 Long timer

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    Very cool. Thanks.
  12. woofer2609

    woofer2609 Been here awhile

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    I have searched around, but know that with stock(ish) diameter tires the preferred combo seems to be 13/45 with the 17" x rims, and 13/47 with the 18/21" ers. I have an x w stock gearing, but it just seems geared "wrong" 6th is kinda useless, so it will be a 13/45 for the 17" wheels.
    1. I will be running both sets of wheels, and have heard of using offset axle spacers that will take up the chain slack to minimize the use of the adjusters when using 2 wheel sets w/ 2 gearing options. (they basically flip over) Where are these available from, and what have people experiences w/ them been. Sorry for sounding like a newb, which i am, but all my previous bikes have had clamshells.

    2.110 or 112 links? Any final words before I order the wheels spacers and new gears?

    Thanks!
  13. mwgak

    mwgak Adventurer

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    Ran 13/45 (17") and 13/47 (18') with a 112. Could have run a 110 with stock tires. MT43 gets close to the guard with a new 110. Stock is 108.
  14. NL-Patrick

    NL-Patrick Adventurer

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    Thanks for the info, just got myself a little toy today. And yes is was raining today in Holland :puke1 Luggage rack is is the first thing that's coming off and then the rear needs a cosmetic clean up.

    [​IMG]

    Gr Patrick
  15. ArmyJoe

    ArmyJoe Long timer

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    Ironic. The Wolfman rack is the first thing going on mine.
  16. NL-Patrick

    NL-Patrick Adventurer

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    I have a XT660z Tenere for long distance travel and the WR is just for fun
  17. Shawnee Bill

    Shawnee Bill Long timer

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    Sold my Wolfman rack here in just a few hours.


    .
  18. jon_l

    jon_l Long timer

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    I thought the same thing!

    Each to his own!
  19. thumpididump

    thumpididump MacGyver

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    I've been thinking about buying a set of Wolfman racks for my WR. Have them on my DR and they're great. Too bad you're not on this side of the pond.
  20. Llamaha

    Llamaha Been here awhile

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    Staintune sent me this, I'm wondering how it compares to the FMF setup? If all I have to do is whack on the staintune then lift up the airbox flap to get the same gains as FMF pipe + header + fuel map then going with the staintune feels like a no brainer to me?

    [​IMG]