Did a MX magazine convert a WR450 to YZ?
Posted July 28, 2009 - 06:59 PM
Posted July 29, 2009 - 05:03 AM
My buddy told me that a couple of months ago one of the motocross magazines took a WR450F and removed the lights and did a bunch of other stuff to it in an effort to make it more like a YZ450 with e-start. He could not remember the magazine. I have searched via google but can not find the article. Did anyone see it and does anyone know what magazine did it?
Dirt Bike did not convert a WR to a YZ, they just wanted to make a WR less 'foo-foo' like, and race ready. They succeeded, and were very happy with the results. They removed all the lights, stock harness, and emissions, and went to town on the suspension and motor.
Posted July 29, 2009 - 06:06 AM
They didn't put much effort into weight loss. They removed the kickstand but didn't even switch to a YZ peg mount. There's more weight savings in that peg mount then the kickstand.
Interesting motor work though. Same as SJMCDon has suggested with swapping just the intake cam and adding a high compression piston. They went the Hot cam route rather than the YZ though.
Posted July 29, 2009 - 06:57 PM
Posted July 29, 2009 - 08:57 PM
Wouldn't it be easier to drop a WR bottom end into a YZ frame? Hide the battery around the airbox and go?
Of course but in CA it wouldnt be green sticker
Posted July 30, 2009 - 12:42 AM
Posted July 30, 2009 - 06:54 AM
IS there anywhere i can see this article. I cant get the mag?
You are not missing much. 13.5:1 piston with stock bore, Hot Cams intake cam, Dr.D Exhaust and jetting to make it all work. Stiffer springs and re-valve on the forks and shock. Remove head light and kick stand and replace rear fender with YZ fender. Fast flex handle bars, carbon fiber skid plate, steering dampner.
Can't remember any other changes and my son just left with the magazine.
Posted July 30, 2009 - 07:09 AM
The article does seem to point to the idea of intake cam swap, HC piston being a good mod for our motors.
Posted July 30, 2009 - 07:10 AM
Posted July 31, 2009 - 10:30 AM