yamaha wr 500 mods

450exc115 wrote:

The early 90s chassis benfit from the Devol or Noleen linkage (96-up stock linkage) but they are hard to find. Swap the forks out for the...

The early 90s chassis benfit from the Devol or Noleen linkage (96-up stock linkage) but they are hard to find. Swap the forks out for the 06-present SSS KYB forks is a good upgrade for the handling.

I don't know if the WR incorporated everything learned on the YZ465/490 but for that motor you had to cut the head, rejet the carb and modify the carb slide. Porting mods on the 465/490 were adding the boyseen boost ports and just cleaning up the castings.

Cool bike and on my bucket list....

shue415 wrote:

For sure get the head cut,I had mine done using the yamaha tech diagram I used a pro circuit silencer with the stock pipe,made a nice...

For sure get the head cut,I had mine done using the yamaha tech diagram
I used a pro circuit silencer with the stock pipe,made a nice power increase
I used Eric Gorr jetting in the stock carb,Changed the main,pilot,needle and needle jet
A keihin carb off of a 91-04 Kx 500 works well and the stock jetting is really close

On the suspension,I serviced the forks and shock and sprung it for me,worked ok
The bike needs better front brakes,but no one makes a bigger rotor,unless you swap out the forks for newer Yz 250
units and then you can upgrade the brakes
WR 500s are just Cool bikes

shue415 wrote:

[img]https://p.vitalmx.com/photos/forums/2020/02/07/402855/s1200_IMG_20200207_193806257.jpg[/img]

Moto Mofo wrote:

Some people are using the FMF YZ490 pipe, but they have to cut the back inch or two off for the silencer to mate up properly...

Some people are using the FMF YZ490 pipe, but they have to cut the back inch or two off for the silencer to mate up properly. I read somewhere that a PC YZ490 pipe didn’t work as well. No idea if that is accurate, however. I’d love to have a PC Works pipe for mine.

As far as the fuel tank, you can either modify the cooling fins and run a YZ125/250 tank with shrouds, or what I went with is an aluminum WR500 tank from Mastercross. It’s smaller than stock, and feel much better when you sit on the front of the seat. A lot of the original plastic tanks are cracking, and as a result, old used tanks for these things are fetching silly prices.

shue415 wrote:

[img]https://p.vitalmx.com/photos/forums/2020/02/08/403043/s1200_0529161313.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2020/02/08/403044/s1200_0321161643.jpg[/img]

pete24 wrote:

heres mine I restored it to ride didn't do a perfect job, then I thought it came out pretty good but decided to do a 250...

heres mine I restored it to ride didn't do a perfect job, then I thought it came out pretty good but decided to do a 250 tank conversion thats pretty good too its a fun bike to ride

leeroy wrote:

[img]https://p.vitalmx.com/photos/forums/2020/03/27/413897/s1200_UwIdDzJoQQmmSvM8p628bw.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2020/03/27/413892/s1200_x9iMERdRQmi_AMazh5dlGw.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2020/03/27/413895/s1200_fT1zG43IRD2LZjnlHV60rQ.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2020/03/27/413894/s1200_TvBH4puWQwSAUOjy7_euzQ.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2020/03/27/413896/s1200_52_0n1MPSiCBUev5HnQxYw.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2020/03/27/413893/s1200_IC1EC4Q06LIVcUB8Vk8g.jpg[/img] this is one i'm building right now , this bikes has some other parts being used .

this is one i'm building right now , this bikes has some other parts being used .