Yamaha WR250R Mega Thread

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

  1. theMISSIONARY

    theMISSIONARY hunting and riding!!

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    it was cheaper for me to get the IMS than the Safari :huh
  2. sequent

    sequent South Australia's own....

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    I've run a Nomad Tank No.1 on my WRR for the last two years (the one designed for XRs, TTRs etc). It fits fine behind the seat, although I had to add some foam (around 1cm thick) under the tank to ensure it had what I considered enough clearance between my FMF exhaust and the tank.

    [​IMG]

    I've just sold that tank and replaced it with a Nomad No.7 tank because the previous Nomad No.1 tank wouldn't fit with the Wolfman pannier racks. The No.7 tank sits higher, more "on the guard" than "over the guard" so-to-speak. It doesn't have the "wings" that hang down. It seems to fit well.

    [​IMG]

    [​IMG]

    About the usage, I never bothered bolting it down, just used the two rubber straps to connect it and it never moved. I also didn't plumb it in (put a stopper on the outlet, and just removed and tipped it in when needed). The No.1 tanks was lower profile and you could just strap a bag down on top of it. The No.7 tank is sloped towards the seat, so I think any bag would slide forward to the rear of the seat, which may or may not be a problem...

    Dave.
  3. rsteiger

    rsteiger Bob

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    If you go with LED type blinkers you can install the 12O'Clock Labs Turn Signal Running light adaptors. They take three wires in and give you two wires out. The turn signals will then be on like a parking light and flash when you use them as a turn signal

    http://shop.12oclocklabs.com/index.php?route=product/product&product_id=70
  4. rsteiger

    rsteiger Bob

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    You might want to check and make sure that the tank will work with an FI system. I can see if gravity feeding a carb fuel line but the WRR is FI and the line coming out of the tank to the motor is under pressure.

    If you were going to have it feed the main tank instead you would have to punch a hole in the tank and add a fitting.
  5. byron555

    byron555 Lame Duck Adventurer

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    I really like my 3.1 IMS, it is cheapest of the replacement tanks, uses stock shrouds (which I like) and the extra gallon is night and day for usability. The safari is really nice too, but more $$$ and of course .6 gallon more. I am not a big fan of the big IMS, it seems so wide... I prefer the 3.1 because 99.9% of the time it is enough fuel for me.
  6. rvsixer

    rvsixer Adventurer

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    I wonder how the Nomad plumbs into the FI system? The rotopax fill drill only takes a couple of minutes, and I need a stretch break every hour or two anyhow, so its really no big deal time or effort wise for me ymmv.

    Now if I was retired and could ride more than day/weekend trips, I'd just get the big Safari/IMS and be done with it. Everything else is just a range band aid at that point.
  7. sturgeon

    sturgeon Been here awhile

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    3.1 IMS plus 0,1, or 2 Rotopax 1-gallon cans gives me more range than I've ever needed. About 500 km with both Rotopax cans mounted and filled. I use a Rotopax as soon as I figure there's enough room in the IMS to hold the extra 4 liters. The time to remove a Rotopax and pour it into the tank is minimal.
  8. GSBS

    GSBS FunHog

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    I went with the big (4.75-gallon) IMS tank and couldn't be happier. Mine actually held over 4.8 gallons the first time I filled it up.

    With this tank the additional weight from the extra gas is carried low in the frontal lobes and causes no adverse handling issues.

    I previously had a 1.5-gallon Kolpin, which mounts the same as the Rotopax 1-gallon, that I attached to the rear rack. That meant I had a more than 10 pounds of additional weight - including the gas, mount and can itself - up high on the bike. The larger 2-gallon Rotopax cans are usually mounted to a rack on the side of the bike which I believe would adversely affect handling unless you mounted one to each side. It just seems to me that it makes more sense to have your fuel centered on the bike and as low as possible - in the GAS TANK.

    The larger IMS tank was less money than the Safari, installed very easily and has given no issues in the 12K miles I've had it. When empty, there is little additional weight compared to the stock steel tank and shrouds and it tapers back to the width of the stock tank where my legs are, so I have had no problems with handling. As mentioned above, the "wings" also provide some protection for the radiator as well.

    With mine I get between 235 and 260 miles on a tank depending on how hard I ride and don't even think about looking for gas until I'm approaching 200 miles. If I know I'll be on a more technical/challenging trail I just plan when I buy fuel so it won't be topped off while on the trail.

    Anyway, for me and the way I ride the IMS was the ideal solution.

    My WR:
    [​IMG]
  9. Scott_PDX

    Scott_PDX Leisure Engineer

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    +1

    Started with a Roto Pax, then then IMS, Then the IMS + Rotopax, and finally a nice blue IMS 4.8 Gallon. Way better!
  10. levain

    levain STILL Jim Williams

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    My reserve comes on at around 70 miles, and that is a real bummer. Sounds like fuel stuck in the wings isn't an issue with the big IMS? My guess is that you get used to the extra fuel weight, and it becomes a non issue, but do you remember thinking about it the first couple rides fully gassed up?

    On another note, that looks like a Q4 pipe, but what header is that? Stock?
  11. GSBS

    GSBS FunHog

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    Honestly couldn't tell any difference handling between the IMS tank vs. stock when both were full. Stock is 2 gallons and IMS has about 2.8 gallons more. Gas weighs around 6 pounds per gallon, so let's round it off and say it's about 18 more pounds (6x3 gallons). That's an additional nine pounds on each side of the bike, the weight concentrated just below and in front of my knees. This weight in this location I believe would have the least handling impact compared to other places you might strap on more gas... i.e. - to a rear luggage rack or side mounted rack.

    I can't remember which FMF pipe it is - cheapest one if that helps. And yes, that's the stock header pipe. I don't use a programmer either, just adjusted the CO settings in the bike's onboard computer to richen up the mix. That was over 15K miles ago and the bike runs great.
  12. Pantah

    Pantah PJ Fan from Boston

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    Mine wears a Safari 3.7 gallon tank. Very nice part. My longest between gas was 214 miles. It took about 3.4 gals I think. It was riding mostly fast gravel in on the CDR in Wyoming.
  13. GSBS

    GSBS FunHog

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    That photo was done using my Olympus XZ1 camera in a "dramatic tones" Art Mode that saturates the colors more than normal. That being said, the tank has discolored somewhat since it was new and almost white. The color in the photos is not far off the real color. BTW, I like the translucent tank so I can see the remaining gas at a glance instead of trying to peer into a dark hole.

    There have been threads about a fix for the vacuum pump issue you describe. As I understand it, the problem is that the vacuum pump spews the gas it pumps from deep in the wings straight up above the regular fuel pump assembly and there is not enough to collect and pool for the stock electric pump to then move it to the throttle body. The fix I've seen is to cut the bottom from a plastic cup or drink bottle, turn it upside down, and attach this piece to the top of the fuel pump assembly. Think of something like an umbrella. Then when the gas is sprayed upward it hits the inside of this piece and the gas falls and pools up where it's needed. I haven't done this mod yet as it hasn't been a problem for me. I figure if I ever have to change the fuel pump I'll do it then while it's apart anyway.

    My IMS tank was one of the very first ones shipped (first week) and I've since read that they did some modifications to address this problem, but I haven't heard the details.
  14. Reeksy

    Reeksy high state of hiatus

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    Lots of interesting feedback - thanks guys.

    When I said $ ain't a consideraion I'm in a fortunate situation in that I can get 'deals' on Nomad and Safari that i'll never get on IMS or Rotopax.

    I'm not looking for massive range. Like a few guys on here, spending time with my young family outranks huge trips - for the next few years i'll be hitting the abundant local trails every XX weekends, but I commute a bit and want to make that more convenient. Standing at the side of the road with rotopax is not more convenient :D

    I believe the Nomad works like the G650XC auxillary tank - sucks into the main tank, but i'd obviously check before purchasing.:deal
  15. Reeksy

    Reeksy high state of hiatus

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    Hey Sequent - did you investigate plumbing the Nomads or just chose not to.


  16. WR250X

    WR250X FoxenTec

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    I have a WR250X and ride mostly pavement but not always. I wanted to go with the IMS tank but while I have heard fantastic things with them I have also heard of a number of issues. (leaks and fuel pump failures) however I think the problems are the exception and I understand that many love their tanks and have no issues. I ended up leaving the stock tank and adding a Rotopak to the Billet rack and one to the side of the Wolfman side rack. Yes, a pain after 95 miles having to dump one of them in. Typically I ride the 95 miles and dump the one gallon in and that gets me to my next gas stop. I then have an emergency 1 gal. if needed. I typically don't go more then 150 miles before needing to get off, take a leak and get gas. Old man I guess. Total cost was around 150.00 which also contributed to not going with another tank. Someday I may end up adding the IMS.
  17. sequent

    sequent South Australia's own....

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    I just chose not to plumb them in - I'm no bloody expert with FI, and I know you can't just plumb it in with a t-piece like I did with my XR400, so I just left it as is. I have a Safari tank already, but contrary to many people on here, at a fast trail pace, I only get 220-270km out of a tank, so if I have a trip with fast or sandy legs of around 250km, I take the Nomad but often don't end up using it.

    I see on this years Safari that there's a couple of people using Nomad tanks that are plumbed into FI Husabergs, so it must be able to be done...

    Dave.
  18. Wallrat

    Wallrat Been here awhile

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    The natural tanks discolor to a rusty brownish when exposed to sunlight. Shame too cuz they're actually nice to have.
  19. BlueLghtning

    BlueLghtning Riding is my passion

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    I'm another vote for having the 4.75 IMS tank or even the Safari if you can get it cheaper where you are. With the way the wings are setup on these tanks, I think it actually carries the fuel weight lower in the 2-3gals range in there compared to stock and even if its full, I don't even notice it. Maybe if I had to pick it up if it was on its side, but that would be the only time the extra weight would be a negative. If you go out for a ride and don't need the full tank, you don't have to fill the tank up all the either. If you only need about 3 gals, then only carry about 3 gals of fuel, but you have the extra capacity there when you need it.

    I actually think bikes with bigger tanks track better with the front tire and overall when you have a loaded down bike with luggage, its nice having that extra weight up front too to counter act the weight out back.

    I hate carrying extra fuel out back. We had to use a Kolpin on my wife's CRF250L for CO this summer because there were no tanks out yet and just that extra gallon way back there took up valuable luggage room and made the front end that much lighter.

    I had a 6.6gal tank on my TE610 by Safari and man I loved that tank. 300 mile range was awesome, but if I didn't need the tank full, the weight was way down low and the bike handled great.
  20. johnnyadventurepants

    johnnyadventurepants Been here awhile

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