2006wr450f

What did you do to your WR today?

4,502 posts in this topic

finished my custom dual exhaust on my wr today.

2011-05-25_15-36-16_700.jpg

2011-05-25_15-36-04_164.jpg

2011-05-25_17-34-48_126.jpg

would love to see more pics of the header and such. how you got it all amted together?

i have a cr250r exhaust also and have been thinking about how much i miss the duals that were on my ktm smr...

Share this post


Link to post
Share on other sites
would love to see more pics of the header and such. how you got it all amted together?

i have a cr250r exhaust also and have been thinking about how much i miss the duals that were on my ktm smr...

it is really a matter of just welding on the proper fitting to get the unit to mount to the stock header. i used the stock header and cut sections outta the stock exhaust. tack welded it all up to make it the correct shape. when i figured it was good, i pulled it off, TIG welded the shit together and called it a day. mig will burn to hot and blow holes right through the material.

Share this post


Link to post
Share on other sites

I'm still trying to figure out why one can hole is bigger than the other... :smirk:

Edited by davidl9999

Share this post


Link to post
Share on other sites

the only reason i can see for one hole to be larger in the exhaust is the pressure equalization values. if you have the pipe that has the ability to flow straight through than the second can will flow almost no exhuast and be relatively useless other than "bling" factor.

and as far as having 2 cans vs. only one.... i dont see any performance increase just yet since i cant ride it at the moment but i personally just like the look of it. and well... since its my bike... hahaha

Share this post


Link to post
Share on other sites

you'll probably have to go with a couple 2 stroke pipes... having the 2 bigger mufflers like that won't give enough back pressure

Share this post


Link to post
Share on other sites

it seems to do fine on idle and putting around. i have yet to actually be able to take it out and open it up and get an idea of what i need to do with the jetting. ill post up when i get that solved and see what changes need to be made.

Share this post


Link to post
Share on other sites
Is there any benefit to having dual exhaust besides looks? It also seems like additional weight to me...

my 560 made a little more power up top, and a bit louder.

i hate the way the mufflers look hanging past the number plate that would be the reason why for duals for me.

and yes, i just like the look of a pair of shorter cans.

:smirk:

sound clip? more pics? do iiit

Share this post


Link to post
Share on other sites

Finally got it all put back together and went for a ride today.

Myler's came through and got my rad issue sorted out, and got me the correct set.

Have to say, they stand behind their customer service, because between shipping and customs charges from them to Canada, they didn't get much $$ out of this sale.

Those Supercools are some sweet though.

Before:

IMG_0016-1.jpg

IMG_0018-1.jpg

After:

IMG_0039-1.jpg

IMG_0043-1.jpg

IMG_0042-1.jpg

IMG_0044-1.jpg

Share this post


Link to post
Share on other sites

Just installed a Clutch basket and primary gear from a yfz450 quad in my dualsported 2004 WR450.

The quad's basket has dampening springs to isolate the power pulses and shocks from the road between the engine and wheel. kinda like a cush drive.

I just took it for a drive and I would say it is definitely a noticeable improvement. There was much less vibration and on/off throttle transitions seemed smoother. There also seemed to be less chain slap and the engine sounded quieter.

I got the idea from haskell and maxpower. thanks guys

Share this post


Link to post
Share on other sites

Installed a Spal fan on the right radiator to help with my slow tail not moving enough air across the radiators, now it can sit and idle in near 100* heat without going past 200*.

I also installed a Staintune exhaust from a WR426 and gave it a rejet to match. Talk about a difference, between the two it's very smooth and picked up a lot of bottom end power. Far more than I expected.

Share this post


Link to post
Share on other sites

finally picked up a battery for the 07 and took it for a quick blast up and down my street... on the way back got a face full of rad fluid cause the cap fell off :ride: not sure if i had just set it on there or didn't turn it all the way when i put it back on but i'm just glad i wasn't in the desert or woods when i lost it!

Share this post


Link to post
Share on other sites

This is kind of a weird one. We bought a used 09 a few weeks ago. The usual deal where you find a few issues after the fact, most no big deal. But one thing bugged me when I adjusted the chain. Even though the marks were lined up I could visually see the wheel was WAY OFF to the right. Long story short, the previous owner had mis-matched axle blocks!

So today we went to the local dealer and put on new axle blocks for the WR.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:


  • Similar Content

    • By OscarFox
      PRICE DROP
      For sale is my 2015 Beta 350RR. 2734 miles and 120 hours. Just had some top end work done by Sierra BMW and BETA. Fresh air filter and oil. This is an awesome dual sport bike. Or you can strip the lights and turn signals and have a single track weapon, your choice. This bike will do it all. Unfortunately, I've been riding my 2 stroke lately and don't have room or the time to maintain 2 bikes. My loss is your gain! Front tire only has a few rides on it, the rear needs to be changed. Beta's are super reliable and amazing machines that rival KTM and Husky! 

      -Forks revalved by LT-Racing for 210# rider w/gear
      -Mylers oversized radiators and bulletproof radiator guards
      -Folding ARC clutch and brake levers (I have the stock levers as well)
      -3.1 gallon tank. (I also have the stock tank)
      -Seat concepts dual sport seat (also includes the stock seat with guts foam and motoseat seat cover)
      -FMF powercore 4 with silent core/spark arrestor. I've got the stock spark arrestor as well. Racing compliant!
      -Boano racing billet brake pedal with brake tip
      -FJ Fasst co. brake clevis
      -Billet chain blocks
      -upgraded steel oil pump gears- the plastic stock ones are prone to failure
      -Force accessories case saver
      -TMD skid plate (not pictured but will be on the bike)

      Extras:
      Acerbis X-factor handguards
      a few spare plastics pieces
      key switch with plug and play wiring
      extra tubes and rimlocks
      Printed and bound owners manual and service manual
      10mm billet bar risers

      It's a dirt bike so it has some cosmetic damage. Some chipped plastic and scratches on the swingarm. 

      Can send more pictures/info upon request
    • By anderson56401
      I have a 1987 yamaha tt 225 that needs a new carburetor.  I've looked EVERYWHERE online and can't find an original.  Does anyone know a good replacement one I can put on it? 
    • By Code54

      Very hard to tell this one from new.  (Other than a little bit of dirt and a few minor scratches)
      VERY low hrs and easy riding  - of course it runs great
      Has both Electric Start and kick start backup (also has Pig tails for battery tender installed)
      BBR Alum. Frame cradle with skid plate (Over $150 and protects the bike – Top of the line)
      Fisher Fab House Chain guide (Factory one is known to be an issue so I replaced it with a top of the line guide – runs about $50)
      Have title in hand
      Selling for ONLY $2000 WITH the extras!!!! (yes, the price is firm and we only accept cash - no shippers or scammers...)
       
      Only reason I am selling is I want to look into buying a trials bike and don’t really need two dirtbikes.
       
      Engine Type
      124cc air-cooled SOHC 4-stroke; 2 valves
      Bore x Stroke
      54.0mm x 54.0mm
      Compression Ratio
      10.0:1
      Fuel Delivery
      Mikuni® VM20 carburetor
      Ignition
      CDI
      Transmission
      Constant-mesh 5-speed; multiplate wet clutch
      Final Drive  - Chain
       
      Suspension / Front
      31mm telescopic fork, adjustable preload; 7.1-in travel
      Suspension / Rear
      Single shock, adjustable compression and rebound; 6.6-in travel
      Brakes / Front
      Hydraulic single disc, 220mm
      Brakes / Rear
      Drum, 110mm
      Tires / Front
      70/100-19
      Tires / Rear
      90/100-16
      L x W x H
      74.2 in x 31.3 in x 42.7 in
      Seat Height
      31.7 in
      Wheelbase
      50.0 in
      Rake (Caster Angle)
      28.7°
      Trail
      3.7 in
      Maximum Ground Clearance
      10.4 in
      Fuel Capacity
      1.6 gal
      Wet Weight
      198 lb

    • By CGB89
      Amazing bike but due to family obligations it sits in my garage most of the time. The bike has maybe 5 hours on it and runs like new. It comes with a GYTR FMF silencer with spark arrestor. There are some scratches on the plastic and and pipe from trail riding but that's what it is made for and its only cosmetic. The bike has been maintained and garage kept. If you have any questions please text me at (415)three 4 two- 4 five 8 six.
    • By cameron_yz80
      So I just did a rebuild on my 98 Yz80, and it wont start. At first, we put the gaskets on wrong, so coolant was leaking everywhere. After we fixed that, and put everything back into place again, piston went up and down smoothly, and it has great compression. The problem is, it does not want to start. Im not really sure what to do, because before, my compression was very low, so I did a rebuild, but now it still does not start. So I need help.