Yamaha WR250R Mega Thread

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

  1. Nice_Rumble

    Nice_Rumble Long timer

    Joined:
    Dec 9, 2004
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    2,299
    Location:
    New London, NH
  2. Shawnee Bill

    Shawnee Bill Long timer

    Joined:
    Feb 25, 2006
    Oddometer:
    2,191
    Location:
    Oklahoma
    Where Nice_Rumble said but everything has been spoken for so nothing ever made it to the flea market.
    Except the WRR itself, as soon as I get it cleaned up I may list it there.



    .
  3. clintnz

    clintnz Trans-Global Chook Chaser

    Joined:
    May 17, 2004
    Oddometer:
    3,665
    Location:
    Rotoiti, New Zealand
    So we finally got around to removing all the emissions crap off Rosie's WRR...

    [​IMG]

    It's heaps lighter now but seems a bit down on power :lol3

    Actually, the engine was out for a full teardown to replace this:

    [​IMG]

    2008 with 30 something thousand km on the bike. The gearbox countershaft output bearing had suddenly spat all it's balls out resulting in lots of nasty noises & loss of drive. Luckily there was no other damage. Still a big job to pull the engine down almost completely to get at the damn thing, would be horrifically expensive if you had to have a shop do it. All the rest of the motor insides looked pretty good, valve clearances ok, ring gaps well in spec, clutch good etc etc.

    A look around the internets doesn't bring up any signs this is a common problem, my guess is that it had been literally 'ridden hard & put away wet' by the PO & corrosion from a drop of water in the bearing was the root cause. Rolling element forensics experts feel free to comment :norton
    [​IMG]

    Cheers
    Clint
  4. Jolly705

    Jolly705 Long timer

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    Jun 24, 2005
    Oddometer:
    2,470
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    SLC
    I bought it set up but the previous owner said she spent $1000 on the suspension.

  5. strongbad

    strongbad Been here awhile

    Joined:
    Jun 21, 2006
    Oddometer:
    494
    Location:
    Idaho Falls, ID
    Brinnelling damage from a chain too tight?
  6. Rosie!

    Rosie! Little MissAdventure

    Joined:
    Feb 25, 2006
    Oddometer:
    465
    Location:
    Rotorua, NZ
    I've always kept the chain tension within spec, and do check it fairly regularly.
    I like to think that the previous owner (Yamaha NZ) adjusted the chain correctly too.. but you never know :huh
  7. DefyInertia

    DefyInertia Saratogian

    Joined:
    Dec 1, 2007
    Oddometer:
    153
    Location:
    San Francisco
    Just picked up a WR/R last weekend. Loving it. A bit surprised the pegs deck out so easily but perhaps this is the result of combing dualsport plush suspension with 17" wheels? Dunno...never had a tard before.

    Just ordered the 4.7 IMS, flatlands skid plate, GL coyote, seat concepts cover. Bike already has heated grips and a set of dirt wheels with fresh 95/5 Knobbies.

    Coming from a 950 SE....love this bike!

    [​IMG]
  8. Jolly705

    Jolly705 Long timer

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    SLC
  9. ArmyJoe

    ArmyJoe Long timer

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    Jul 11, 2011
    Oddometer:
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    Location:
    Kuwait
    When I saw the Wolfman Teton Saddle bags, they immediately reminded me of the Army's JSLIST bag. They're both made from water resistant nylon and have a roll top. The JSLIST bag has two shoulder straps that can be sewn together (or adpated for buckles) and draped over the seat. The only trick would be figuring out how to attach it to racks (bungies?). I'm not in a position to test them on my WRR for a few months, but thought I'd mention it for others that like economical homebrew solutions.

    FWIW, the JSLIST bag seems to be slightly larger:
    The Wolfman bags are advertised as 13" Width, 13" Height, 7" Depth
    A JSLIST bag is advertised as 17" Width, 16" Height, 8" Depth

    Front / open

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    Front / closed

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    Rear

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    Side

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    Inside

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  10. jon_l

    jon_l Long timer

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  11. Pantah

    Pantah PJ Fan from Boston

    Joined:
    Oct 25, 2004
    Oddometer:
    10,489
    Location:
    India Wharf
    Does anybody have strong feelings about the best chain for the Yamaha?

    My last trip was a 2500 mile loop through Utah and Nevada from Phoenix. By the time I got back, my wheelbase was at least an inch longer than when I started due to all the adjustments. The last day required a chain adjustment every fuel load.

    The rear sprocket shows the wear with hooked teeth. Haven't looked at the front yet. The bike has only about 9k miles on the clock, but plenty of sand sand time, and I probably didn't keep it clean enough. I probably damaged it early in its life too by letting it get so loose it would jump teeth.

    I want to replace the sprockets and chain with a strong sealed O ring chain. It seems to me the chain should last about 15k miles. Any suggestions?
  12. DougZ73

    DougZ73 Fading off.........

    Joined:
    Oct 10, 2009
    Oddometer:
    7,437
    Location:
    NJ
    My KTM is down right now.....had to redo some gaskets to get an air leak under control, which was causing a horrific lean condition..making bike un-rideable.

    So, since the KTM smoker is all brake sliding and clutch riding, I have actually adapted that style to my WR250R(4T), and broken myself of the habbit of relying on engine braking, and I actually think I am riding my WRR a little faster with that style.
  13. TwilightZone

    TwilightZone Long timer

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    Dec 2, 2008
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    >"Does anybody have strong feelings about the best chain for the Yamaha?...... "

    DID gold links. (112 links, rivited master).
    Rear - Primary Drive Sprocket
    Supersprox countershaft Sprocket.

    10,000 miles, no worries so far.
  14. Crawdaddy

    Crawdaddy Navigate 2 Adventure

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    Jun 5, 2007
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    2,282
    Location:
    Ramona, CA.
    The "Less is More" campaign continues with 66cc of Bad Ass! :lol3

    [​IMG]
  15. Krabill

    Krabill Long timer

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  16. mtntrails

    mtntrails Life is Short...

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    Jan 26, 2006
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    496
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    Mount Airy, MD
    Chris - tell us more - what is it? Looks like fun!
  17. ramz

    ramz Professional Trail Rider

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    Dec 11, 2006
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    2,051
    Location:
    Salida, CO
    :drif WANT ^^^^^^^^


    It even has trials tires.


    I'll order it today if you post up details. :eek1
  18. Jolly705

    Jolly705 Long timer

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    Jun 24, 2005
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    SLC
    Can I "think" that I can go 100 miles with no worries on the stock tank? What is the longest distance guys are making it? Thanks
  19. z@ch

    z@ch Turn it up to eleven

    Joined:
    Apr 3, 2008
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    4,752
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    Tejas Norte
    Like most questions, the answer is "depends"

    Many guys here average about 55mpg, but charging hard on full knobs, I'm lucky to get 90 miles to the tank.
  20. DougZ73

    DougZ73 Fading off.........

    Joined:
    Oct 10, 2009
    Oddometer:
    7,437
    Location:
    NJ
    +1. I have had fuel light come on as low as 76 miles indicated.