wr 426

zisis · #1 11-17-2007, 08:51 AM

Hello everybody.
I read about replace cam in forum and i want to do it.
I have wr 426 and must buy ex. cam of 2003 wr or later model to change the stock cam with cam from wr 450 . Trere is any problem with this change;

Dano426 · #2 11-19-2007, 08:54 AM

That is correct. Purchase a 2003-05 WR450 ex cam. You will also want to buy [Only registered and activated users can see links. ]to remove your decompression cable. The oem rubber plugs form Yamaha have been known to fall out. PM me your email address and I can send you a pdf of the installation process.

[Only registered and activated users can see links. ]
Here is a site that will describe all of the free mods for the WR. It is written for the WR250F, but most of it will apply to the WR426 as well.

basanch73 · #3 11-19-2007, 10:19 AM

Also, make sure you find out what size pads you have in there now before this mod. Whatever they are, order the hotcams refill kit that covers 5-15mm larger than them with your cam order. I got my plug, cam and shim kit with 30 shims (5 ea size) for $150 thru yamahasportsplaza.com.

Have fun doing it!

zisis · #4 11-20-2007, 08:46 AM

Quote:

Originally Posted by Dano426

That is correct. Purchase a 2003-05 WR450 ex cam. You will also want to buy [Only registered and activated users can see links. ]to remove your decompression cable. The oem rubber plugs form Yamaha have been known to fall out. PM me your email address and I can send you a pdf of the installation process.

[Only registered and activated users can see links. ]
Here is a site that will describe all of the free mods for the WR. It is written for the WR250F, but most of it will apply to the WR426 as well.

Τhanks for your answers.
Dano426 how i can send pm?

Dano426 · #5 11-20-2007, 02:30 PM

Click on my name and select "Send private message to ..."

Florida 393 · #6 11-20-2007, 08:38 PM

You will love the starting ease and performance with the 450DCM done. I have never regretted doing it to my 2002 YZ 426. Be sure you check the valve shim lash as said.

Bill

zisis · #7 11-20-2007, 11:39 PM

Μust have five post here and i have only two, like news member on forum. So i will try for more.

zisis · #8 11-20-2007, 11:41 PM

Thanks all members of this forum about answers.

zisis · #9 11-20-2007, 11:43 PM

Continue write to have choise for five post,
Thanks

zisis · #10 11-21-2007, 01:57 PM

Τhanks to all of you .
I wil do it and i will tell you know.

Florida 393 · #11 11-22-2007, 09:22 AM

Best of Luck and please keep us posted on how things turn out.

Bill