Yamaha WR250R Mega Thread

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

  1. SCQTT

    SCQTT Zwei Kolben

    Joined:
    May 16, 2005
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    Mike's Sky Rancho
    I bought a very slightly used WR250X and am going to press it into commuting duty.

    The seat has to go and I am pretty settled on a Sargent.

    The range of this thing sucks & right now I have to fill up everyday.

    I am thinking about the IMS 3.0 or 4.7. I have heard some people complain about the seat/shroud fitment to the IMS tanks. I am a pretty picky person when it coems to things being right. Do any of you have an IMS tank and Sargent set? Are you happy with that set up?


    Thanks, Scott
  2. Nice_Rumble

    Nice_Rumble Long timer

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    Have the 3.0 IMS. Perfection if you don't mind the seat/shroud gap. Best tank if you like the size and feel of the OEM tank. Easy 180 miles. If I need more I carry 2 gallons in a Rotopax for a total of 300 miles.

    [​IMG]
  3. leftystrat62

    leftystrat62 Adventurer

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    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    This is the 4.7 gal tank-love it even in the tight rocky woods,and here is the Sargent with it. I've got 2 after market seats and am considering selling this-pm me if interested.
  4. leftystrat62

    leftystrat62 Adventurer

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    The guy in town welded it for me,not sure what he used for the aluminum. I carried a stock hose,I think in the parts spec it's called hose #3. I was lucky it fell over to the left after it tore,and I still had water in my camel back.
  5. livetofly

    livetofly Adventurer

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    I'm just curious what's the most popular gearing out there for a WRX that is riddent about 70/30 street/dirt? Mine came with 13/47 combination, but I plan on replacing chain and sprockets soon. I'm thinking I might like a combination that would run at a little less rpm at hwy speeds (65-70mph), even if it gave up some of the low end acceleration.
  6. leftystrat62

    leftystrat62 Adventurer

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    I run the same thing but I do 70/30 and the 70% is off road. I'm thinking of putting on 14/50 this spring which will be a little more toward street,but I want the 14 so my chain won't screw with my swing arm.
  7. TwilightZone

    TwilightZone Long timer

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    >"putting on 14/50 this spring which will be a little more toward street,but I want the 14 so my chain won't screw with my swing arm. "

    I came from 13x47... and am running 14x50 now. Pretty good gearing, 6th is basically a freeway gear.
    Could run a 14x51 too, but might need a bit more chain length over stock
    Buy the aftermarket chain guard/case protector, much better to see what is going
    on in there with the countershaft sprocket.

    Rocly Mtn ATV has 'Primary Drive' sprockets. $20 rear wheel, $9 front.
    IMHO: They are cheap and good.
  8. AZ TOM

    AZ TOM Long timer

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    14/47 here on my R. Does everything in AZ & beyond.
  9. leftystrat62

    leftystrat62 Adventurer

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    what size chain did you use with the 14/50?
  10. jkstehn

    jkstehn Been here awhile

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    I using a 112. Works with 13/50 as well if you really want the low end. Still can do 75mph (by gps) with a MT 43 on the rear.
  11. freetors

    freetors Been here awhile

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    Collinsville, OK
    I have a 14/49, but I also have a maxxis desert IT on the back so it's like having a 14/47-48. I would like to have a couple less teeth on the back, but my bike doesn't have the power to pull any more in strong headwinds.
  12. jrou111

    jrou111 Stair Climber

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    So anyone seen anything like this? While negotiating single track on a recent ride, I felt a POP under my bike. I just thought it was a stick or something, so I didn't pay it any attention. I did feel like I had less rear braking power, but I wrote it off as them just being worn out or overheated. Then, on my ride Sunday, I noticed a LOT of pedal travel was needed to lock up the rear brakes.

    So last night after replacing the rear sprocket and putting in new pads, I looked at the rear brake pedal and found this

    [​IMG]

    Now I'm trying to figure out where I can get another soon. Been looking through the parts books but can't find it in the online micro-fiche. Any help guys???
  13. Nice_Rumble

    Nice_Rumble Long timer

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  14. jrou111

    jrou111 Stair Climber

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  15. japako

    japako Been here awhile

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    You can also try Ebay. The master for your bike is the same for many other models. I was looking the other day and there were two for the wrr.

    I should add, the brackets are usually with them, and Yamaha takes 5 to 6 days after the purchase to arrive at my dealer.
  16. Mikef5000

    Mikef5000 Long timer

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    Looks like an extremely easy part to fix, can't you just take it to a weld shop? Seems like it'd be much quicker and cheaper.
  17. jrou111

    jrou111 Stair Climber

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    It's pot metal or pretty close.

    I ordered a replacement from my local dealer. I was only $8.
  18. KansasBob

    KansasBob Been here awhile

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    Damn! I didn't think a dealership would take the pen out of their pocket to write down the number for less than 9 bucks! :deal

    I'm impressed.

    Do you have any idea what happened. Seems like a strange part to break? Defiantly not "pot metal", stamped steel for sure.

    Is there any sign that something hit it?
  19. skierd

    skierd Wannabe Far-Rider

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    I'm running 13/45 gearing on my WRR with X wheels and a 150/70-17 rear tire and find the gearing about perfect for the higher speed touring I tend to have to do to get anywhere. Its also extremely close to stock... the only time I have trouble is on tight single track where frankly I shouldn't be taking a bike with street slicks anyway.

    When my bike was still an R, I ran 13/47 gearing with a D606, which overall is pretty close to stock as well.

    I've found the IMS 3.1 fits my needs perfectly, even in the wide open spaces of Alaska, assuming I'm sticking to the main-ish roads. For the Dalton I carried an extra 2gal gas can on the back rack. If I was spending the majority of my time in the southwest deserts, I'd probably want the 4.7.
  20. jrou111

    jrou111 Stair Climber

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    It's really crappy quality steel, IMHO. If I welded it, I'd be afraid of just burning right through it.

    As far as what happened, I was on single track on the side of a mountain with lots of switchbacks. I was on the rear brakes for most of the day.

    I think it was around 8:35 on this video that it happened:

    <iframe src="http://www.youtube.com/embed/h8gUlA-pZeA" allowfullscreen="" frameborder="0" height="315" width="560"></iframe>


    That's a WR-X btw :deal