Yamaha WR250R Mega Thread

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

  1. GSBS

    GSBS FunHog

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    My only caution would be that some 2008 models had premature fuel pump failures. My 2010 has over 22K and I've never had a mechanical issue with the bike.

    A new fuel pump is in the $200-250 range so it might be a price negotiating point for you.

    Good Luck!
  2. DougZ73

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

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    Rear suspension: Set rebound damping to max, setting per manual. If its still too bouncy, send out shock to get rebuilt by a professional shop, like GoRace, or WER here in NJ.
  3. AZ TOM

    AZ TOM Long timer

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    Set the right amount of sag also, for my 185 lbs 4 in or more. May not need full on rebound damp. Keep balanced & rear wheel on the ground.
  4. Rider_WV

    Rider_WV Long timer

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    even with sag set the rebound needs to be set at max, these suckers are WAYYYY under dampened on the rebound side. Turns into a pogo stick quite rapidly offroad. IMHO the rear shock is the biggest downfall on these bikes. If I end up keeping mine I have to send the shock out for work.
  5. johnlt

    johnlt Been here awhile

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    I opened up the airbox under the seat and noticed a real improvement but the induction noise was unacceptable. I fabricated a rear facing snorkel out of aluminum star plate after making a cardboard model then lined the inside with foam and wa-la still had the improvement but much quieter. It has about double the area of the OEM air intake.
    [​IMG]
  6. Sewerat

    Sewerat Cert. bike whore

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    I did the ultimate air box mod and it kept the factory plastic
  7. MeefZah

    MeefZah Curmudgeonly

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    If it hasn't died at 10k it probably won't.
  8. AZ TOM

    AZ TOM Long timer

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    To each his own. Mine works well enough for my 72 year old fat but! Sag at 4 1/4 & rebound all the way off, counter clockwise

    http://s43.photobucket.com/user/rtb1940/media/GC2012001_zps0cf601fe.mp4.html

    http://s43.photobucket.com/user/rtb1940/media/GC2012003.mp4.html

    http://s43.photobucket.com/user/rtb1940/media/PICT0005.mp4.html

    http://s43.photobucket.com/user/rtb1940/media/PICT0004.mp4.html
  9. DougZ73

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

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    Since I am at work, I only watched a little bit of the first linked vid. That small rocky bumpy terrain would not require the shock rebound set all the way out , nor a rebuild.

    The people that need the rebound set at max and/or rear shock rebuilds, are the guys that ride in a such a way, that the rear shock gets fully compressed, either with small jumps and/or whoops. When the stock shock gets fully compressed, the rebound damping needs to be increased...dramatically.

    Edit: The guys that have their bikes bouncing them in different directions from the way that they are trying to get the bike to go, know if they need the rear shock redone or not. I would not advise anyone who does not know what pogo'ing is, or if their bike is doing it, to have the shock rebuilt.
  10. AZ TOM

    AZ TOM Long timer

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    So little time, so many experts:D
  11. WeazyBuddha

    WeazyBuddha Carbon-Based Humanoid

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    Thanks for the contribution to the discussion. More discussion and expression of opinions is better than less. As a WR newbie and one who is not particularly knowledgeable about setups or wrenching, outside of oil changes, it is much appreciated. :thumb
  12. sieg

    sieg Long timer

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    Yes, I don't know if Doug is an expert, but he sure knows what he's talking about here. :deal
  13. duanew1

    duanew1 In my Pajama pants

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    I have my rebound all of the way up and most of time it is fine. Actually this is like 98% of the time. It is only when I am going fast through whoop type trails and the rear of the bike starts hitting me in the butt do I get the feeling I have to slow down. I also do not like ramping the bike because I have not figured out how to keep it from nosing over so bad. I think the shock would help this also. I want to get mine done but have not had the $$ lately and I can make do for now.
  14. AZ TOM

    AZ TOM Long timer

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    Probably all this tame, easy terrain we have out here in the west tends to slant our shock setting expertise:D Will take more than a shock rebuild to make a motocrosser out of the WRR
  15. DougZ73

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

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    Its all good gents. I am no expert...I just know what my bike does and does not do, and what steps are needed to fix the issue.

    I put my experience out there, and people can do what they will with it. If people can take it it and helps them, then good. If not, so be it. My panties don't get bunched if someone doesn't take my advice or does not believe what I am saying. :D

    Duanew1: Nosing over = pogo'ing.

    FWIW, what some guys use their WRR's for, I could ride my 500 lbs street bike on. :evil
  16. UtahFox

    UtahFox Been here awhile

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    :wave Suspension is working great for me.
  17. TexaNate

    TexaNate Been here awhile

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    As long as we're all putting in our two cents...my suspension is bone stock and I've never had a problem with it. Playing with the clickers and setting my rear preload for 4" race sag helped. I stand up on the pegs, bump over giant ruts and roots in single-track (and no-track), toss the bike around soft-ish sand and ride over heavily rutted roads that haven't been maintained in decades. If I wanted to rip across the Eurasian landscape at 80mph safely I would probably put $1k into a "magic carpet ride" but as far as I can tell, the stock stuff works just fine if you are willing to cut your speed down a bit.

    I will say this much: If your front feels too stiff on a hot day after some riding, lift your front wheel off the ground and air-bleed the forks. I use a pair of these and they work great.
  18. Subaru297

    Subaru297 Been here awhile

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    4.25" sag? That sounds like way too much to me. Typically you want 1/3 of your suspension travel as race sag. On our reduced 10" of travel that gives us about 3.3". You would also be looking at having around 1" of static sag.

    4+ inches would be for MX bikes and other orange bikes with 12-13 inches of suspension travel.

    Just curious have you ever had any problems with the chain slider wearing out?
  19. jon_l

    jon_l Long timer

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    Noob question - I looked at the fork bleeders on Rocky Mtn and also Motion Pro sites. I get why one might release some air on a hot day, or for transport, but does this released air replenish itself? These valves release air, but where does the air come from in the first place?
  20. PYG RYDR

    PYG RYDR Adventure-Dual Sport

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    My wife asks me the same question when I release air.....:lol3