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Related Garage

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Yamaha WR450F (2007)


Owner: IrideWR
Added on January 20, 2017


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What did you do to your WR today?

Yamaha WR400F Yamaha WR450F


4441 replies to this topic
  • djrevz

    TT Bronze Member

133 posts
Location: United Kingdom

Posted August 04, 2010 - 12:20 PM


Had my wr 426 dyno tuned runs perfect. :eek: Thick line= bhp Thin line= torque

Posted ImagePosted Image

02 426
Timing (WR-YZ): yz
Main jet: 168
Main air jet: 200
Pilot Jet: ....
Pilot air jet: 100 PAS
Fuel screw (turns out): 1
Starter jet: .....
Needle model/Clip position: yzf needle, clip 3 from top
Airbox lid (on or off): OFF
Pipe: white bro
Temperature where you ride: 70-80 F (now)
Humidity: 50-60% (now)
throttle positioning sensor disconected.

Let me know of any thoughts anyone has...:banana:

Edited by djrevz, August 04, 2010 - 12:37 PM.


  • djrevz

    TT Bronze Member

133 posts
Location: United Kingdom

Posted August 04, 2010 - 12:42 PM


I installed a vapor tech trail speedo. Hooked the rpm wires to the coil, as well as the power wires and everything works except the tachometer. Any suggestions as to how to make the tach work?


Im actually having problems with the rpm reedings, i have fitted the wire to the coil wire (wrapped) and to the live of the coil and reeds to high on the diagram but low on the digits, but the tacho fitted perfect i made a bracket that fitted to one of the front 8mm bolts that hold the fork guards on.

  • flynz

    TT Member

67 posts
Location: Idaho

Posted August 05, 2010 - 02:43 AM


I hooked both the power wire and the rpm wire to the coil wire, do you think that could be a problem? I wrapped them around the connector on the wire side. I was contemplating solder and heat shirink tubing which I have, if it worked how it is now, but, no worky. Any suggestions on where to hook the power wire too?


Right now I'm 6,000 miles away from my bike to confirm I believe I only hooked one wire up to the coil and the other to ground on the frame and the power wire goes to the battery. Try doing that.

Edited by flynz, August 06, 2010 - 12:41 AM.


  • schattat

    TT Member

40 posts
Location: Germany

Posted August 05, 2010 - 11:50 AM


Custom fitted an Öhlins steering damper to compliment to rest of my Öhlins setup :banana:

Posted Image

Posted Image

  • ASternad

    TT Silver Member

738 posts
Location: California

Posted August 06, 2010 - 08:28 AM


What kind of handlebar riser you running, home made?

  • schattat

    TT Member

40 posts
Location: Germany

Posted August 06, 2010 - 08:45 AM


What kind of handlebar riser you running, home made?

Yes indeed! The handlebar mounts are from a KTM (for a 28.6mm bar) that are normally fixed with a M10 allen head screw (screw length can be chosen as needed). Just lathed a couple of aluminium risers, got longer screws and mounted it together. It's the identical setup to that used in the rallye kit offered by Yamaha for races like the Dakar:

Posted Image

Posted Image

  • Icelandic_amateur

    TT Member

43 posts
Location: Iceland
Garage View Garage

Posted August 08, 2010 - 01:29 AM


I have a 2005 WR 450, and I have been riding with a friend this summer, he has a WR 450, 2006 model, i.e. 1 year younger than my bike.

In short, it is a shock to find out how much better his bikes handles around courners. Somehow the stear (or the front) seems so high on my bike, and not as "connected to the earth" as on his bike. I have tried to play with the supspencion; by loosing it up, but still it is obvious that his bike handles much better.

I thought that Yamaha didn't change the bikes much between 2005, and 2006. Have you guys had the same experience?

  • flynz

    TT Member

67 posts
Location: Idaho

Posted August 09, 2010 - 02:46 AM


I have a 2005 WR 450, and I have been riding with a friend this summer, he has a WR 450, 2006 model, i.e. 1 year younger than my bike.

In short, it is a shock to find out how much better his bikes handles around courners. Somehow the stear (or the front) seems so high on my bike, and not as "connected to the earth" as on his bike. I have tried to play with the supspencion; by loosing it up, but still it is obvious that his bike handles much better.

I thought that Yamaha didn't change the bikes much between 2005, and 2006. Have you guys had the same experience?


You might want to see what front tire he is running I tossed the stock one and put on a 756 my bike it rides like its on rails now:ride:

  • JSanfilippo

    Get Help Now

8,146 posts
Location: California

Posted August 10, 2010 - 08:38 PM


Somehow the stear (or the front) seems so high on my bike, and not as "connected to the earth" as on his bike.


Sounds like you've got too much race sag. The lower the rear end is, the less weight there is on the front.

Find out the correct rear spring for your weight and install it. Set the sag correctly and it should sort most of the issues you're having. A new front tire will take care of the rest.

Throwing on a better front tire when the suspension isn't sorted is like trying to cover a gash that needs stitches with a bandaid.:banana:

  • jw423

    TT Member

81 posts
Location: Utah

Posted August 12, 2010 - 02:27 PM


Im actually having problems with the rpm reedings, i have fitted the wire to the coil wire (wrapped) and to the live of the coil and reeds to high on the diagram but low on the digits, but the tacho fitted perfect i made a bracket that fitted to one of the front 8mm bolts that hold the fork guards on.


Check this out at about 5:44 maybe it will help..:banana:




http://www.youtube.c...Q?fs=1&hl=en_US

  • rholbrook

    TT Bronze Member

138 posts
Location: Utah

Posted August 14, 2010 - 08:57 PM


I added a RevLoc Dyna Ring to my WR and went for a ride. I will never own another bike without one. Love it.

  • spick

    TT Bronze Member

144 posts
Location: Newfoundland

Posted August 17, 2010 - 03:13 PM


New front sprocket on my 06. 8500km on the stock one. New chain on the way too.

Pretty simple thing to do once I picked up a 27mm socket for my 1/2" ratchet.

  • stev0

    TT Bronze Member

407 posts
Location: South Africa

Posted August 17, 2010 - 09:57 PM


I added a RevLoc Dyna Ring to my WR and went for a ride. I will never own another bike without one. Love it.


Interesting. I will look into this when I need to replace my clutch basket.

How does an auto clutch work? Id still like to use my clutch for wheelies and nose lifts over obstacles?

I'm assuming, I loose the clutch completely?

  • OneGuy

    TT Newbie

6 posts
Location: Kenya

Posted August 18, 2010 - 03:10 AM


Installed a DR.D exhaust. Cant believe i waited this long before making this mod.

Now working on installing the 3.3gal tank. :banana:

  • rholbrook

    TT Bronze Member

138 posts
Location: Utah

Posted August 18, 2010 - 07:06 AM


Interesting. I will look into this when I need to replace my clutch basket.

How does an auto clutch work? Id still like to use my clutch for wheelies and nose lifts over obstacles?

I'm assuming, I loose the clutch completely?

No need to replace the basket and installs in 15 minutes. At that low of speeds you really don't need to use the clutch to go over obstacles. You can by the way still use your clutch to get your rpm up to do this. In a way You can adjust the level of clutch you want or should I say what rpm you want the clutch to engage at with the clutch cable you have now. If you adjust your clutch all the way out its almost normal.

  • stev0

    TT Bronze Member

407 posts
Location: South Africa

Posted August 18, 2010 - 07:40 AM


Im pretty sure id need a new basket some time or another. My basket has about 580hours on it... with a stock clutch.

So when the basket goes, ill look into these clutches. Ive never ridden with an Auto clutch big thumper, so I can imaging it must be AWESOME on the technical terrain.

  • Parx_400

    TT Silver Member

577 posts
Location: California

Posted August 21, 2010 - 02:51 PM


Changed it from this:

Posted Image

To this for a 14 hour ride i'm going on tomorrow:

Posted Image

Posted Image

  • stev0

    TT Bronze Member

407 posts
Location: South Africa

Posted August 22, 2010 - 12:25 AM


I put it up for sale :bonk:

  • jw423

    TT Member

81 posts
Location: Utah

Posted August 22, 2010 - 01:57 PM


I put it up for sale :foul:


Why ohh why would you ever do that! :bonk:

I took the front end apart to regrease the steering stem bearings.

  • TheBlackSheep

    The TT shirts are gay!!

4,926 posts
Location: California

Posted August 22, 2010 - 05:53 PM


I took it on a ride early this morning before it got 100 degrees today :foul:




...... bahhh :bonk:





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