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MxnDoc

Newer Style IMS Tank

24 posts in this topic

Fellow TTer's has anyone recently upgraded to the new style IMS tank for the WR/YZ 250-450 3.4 gal. for 2003 to 2005 years? This is the newer tank style with the petcock/ fuel delivery valve on the LEFT SIDE ONLY, with no fuel line cross over from the right side. I'm having trouble finding:banghead: which manufacturers radiator braces will work with this new style tank:confused: . My current Works Connection radiator braces would have to be extensively modified to fit with this new tank. Since I will be using this new tank occasionally for long rides in Baja and swithing back to the original tank for normal riding I don't want to destroy :eek: my current braces/ supports. Any help would be appreciated!:applause: Bike is "03 WR450

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I didn't know they made one. I just went to their site and they are still showing the 3.1. Where could you see one?

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I bought it thinking it was the other style with two petcocks and then got home and found out it was the newer style with only one on the left side. I have a call into IMS and expect a response on Monday. Any help would be appreciated.

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Wow, I was just looking for this. I just installed my 3.4 IMS tank today and found the exact same thing. I was wondering if rooster guards, or some other full coverage radiator guard would work. The works connection braces are OK but I would like to upgrade to something beefier.

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Tbone81 if you come up with some braces that work with this tank could you let me know?

MxnDoc

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Tbone81 if you come up with some braces that work with this tank could you let me know?

MxnDoc

Will do.

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Do you still need to change over the to the YZ scrouds on the 2.8 gallon IMS on the 2007 bikes? The Rocky Mountain web site doesnt say if you do.

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Do you still need to change over the to the YZ scrouds on the 2.8 gallon IMS on the 2007 bikes? The Rocky Mountain web site doesnt say if you do.

Sorry I ment 3.1 Gallon tank

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Actually the tank is quoted as a 3.1 Gal. from IMS , however, with the variability they say during casting of the tank mine is a 3.4 from bone dry to full at the cap.

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Sorry I ment 3.1 Gallon tank

Yes you will need the YZ shrouds.

My 3.1g IMS actually holds 3.25g

Is a good fit too.

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The increased capacity and design of the IMS tank allows only the left Works Connection radiator brace to work with minor mods. The right side tank frame bolt is almost completely enclosed by the plastic of the tank, so getting the brace to attach/anchor there is not possible without complete destruction of the Works brace. Anyone got any great ideas? I'm leaving for a Baja 400 mile trip in about three weeks and would like to have a brace in place!

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I have the new IMS tank, 3.3 gallon.

http://smg.photobucket.com/albums/v518/MotoGoalie/Motorcycle%20Pics/

My bike is a 2006 WR, you DO NOT need new radiator shrouds. I can say the shrouds on this bike are EXACTLY the same as the 2003 YZ shrouds as I have both with different graphics.

Anyhow, it fits nice, looks nice but I noticed the bottom portion vibrates like a mofo when idling. I hope it doesn't crack.

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I talked with a local dealer and he called tucker Rocky. They say you do need to change the Shrouds on the WR's . The two bikes are very close. I cant figure out why these manufatures dont make a WR specific sinse most guys that buy WR's are the trail riders and need the fuel compacity. I cant figure out why Yamaha doesnt dell the dikes with bigger tanks anyway.

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This thread is getting confusing because no one is saying what year there bike is. Has anyone used these tanks on a 07 WR450? From the tank picture shown in this thread, 06 & 07 YZ shrouds will not fit the tank. Aluminum frame models (07 WR & 06 & 07 YZ's) shouds are different than the steel frame shrouds. Please, does anyone have any pictures of a tank on a 2007 model? The only way I see to make it fit is to buy steel frame shrouds.

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