TF WR450
Yamaha WR450F
Motorcycle Law question: How do you make a Yamaha WR 450 F street legal? Answer have a C or 3 in the 8th digit of your serial number and your home free.
If you are wanting to park it for a while you will need an ignition switch. I got mine from Baja designs it was part number 12-8001
https://www.bajadesigns.com/NET/P-128001/Switch%2c+Key+Switch+Kit-dsk
For Idaho all I need is a brake light, mirror, and horn.
The 2005 WR450 has a two filament tail light so all you need is a brake light switch for the foot control. Baja Designs sells a kit (part number 14-9000)
https://www.bajadesigns.com/NET/P-149000/Brake+Light+Kit%2c+Wr250%2f450f+03-06
I also needed some street legal knobby tires
I chose the Dunlop D606
http://www.dunlopmotorcycle.com/tirecatalog_tire.asp?id=14
front tire size is : 80/100 21 rear tire :110/100 18
I also wanted foot pegs in case a buddy needed a lift. I found them at Baja designs part number 21-0078. There was no picture, but they look like the footpegs for the XR450
https://www.bajadesigns.com/NET/P-210078/Footpegs%2c+Rear+03-06+Wr+Billet
If you want turn signals and everything above try buying the Baja Sport kit.
http://www.electrosport.com/products/product-detail-328.php
Motorcycle parts
Key ignition
Rumor has it that the key ignition from a TTR125 part number 5HP-82510-00-00 will work on the WR450
I found one at the link below
Baja Designs will sell kit replacement parts (order the key kill switch and brake light and horn separately
call Baja designs at 760-560-2252 to see if the will sell the parts of their dual sport kit for the wr450.
Key switch
https://www.bajadesigns.com/NET/SearchByCategory.aspx?CategoryCode=SWITCH&title=SWITCHES
Gas tanks
http://www.justgastanks.com/store/index.php?main_page=index&cPath=1_70_182