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I want to make my street legal 04 crf450r a cr500r. Help

Posted: March 25th, 2008, 4:18 pm
by mikeinsanfran
The only thing cooler than a street legal crf540r is a street legal cr500af. I just want to find out what the conversion process entails. I have a ton of questions too. If you can answer any of them, or you live in the San Francisco Bay area and can help, please write me back.

1) Am I better off trying to locate just a good motor and trans with electricals, or should I be looking for an entire donor bike instead?

2) What are the differences in the 500 motors by year? What should I be looking for?

3) Does anyone sell a kit to avoid all of the fab work?


4) Is there anyone that I can have do the conversion for me? What would it cost?

5) How difficult is my particular bike to convert?

6) What generation is the 04crf?

7) I know this is a dumb one, but what kind of gas mileage do you guys get out of your bikes. I am curious about what my range will be with a 4 gallon tank.
Thanks a lot. Any help will be appreciated.

Posted: March 25th, 2008, 4:36 pm
by britincali
You are gonna get TONS of help here, you have come to the right place my friend :D

Posted: March 25th, 2008, 4:59 pm
by Exnav
Look around at the builds and your questions will be answered and as far as engine years go.......get the newest you can find whether it is in an existing 500 or not.

Posted: March 25th, 2008, 5:02 pm
by aloha450x
yeah boooooooooy another cr500 supermoto. im having my 05 crf450x frame converted right now. pimp shit. glad to have ya aboard. these guys here are the bomb and have crazy knowledge about the 5hundy and conversions.

Posted: March 25th, 2008, 6:02 pm
by teemtrubble
Hey Mike! Welcome!

Posted: March 25th, 2008, 6:41 pm
by lewisclan
teemtrubble wrote:Hey Mike! Welcome!
Teemtroubble is the man you want to talk to on building your AF

Posted: March 25th, 2008, 11:10 pm
by iggys-amsoil
Hmmm.... before you get into all that, The DMV didn't send a recall notice for the street legal plate?

Some years were grandfathered but I don't thing 04 was one of them.

Sorry to burst your bubble.

Posted: March 26th, 2008, 8:55 am
by Caseys500
What if you went to all the trouble of getting the 450 legalized...then did the conversion? Would that work? I might be moving to Cali and I will leave my bike registered in Idaho when I move there for school. If I get in that is!

Posted: March 26th, 2008, 12:56 pm
by mikeinsanfran
No, no recall notice on the plate. I paid a guy to do it. It was expensive, but it beats the fuck out of riding a drz. I have looked around the site and have gotten a much clearer idea of what the whole process entails. I think that the best thing for me to do is going to be to find a clean enough cr500 and just hire someone to it. If that someone is you then send me a message. I need a street legal 2stroke. All of these yuppie creeps around here ride these 16,000 dollar ducati hyper-motards on the street here and I cant wait to smoke one of them.

Re: I want to make my street legal 04 crf450r a cr500r. Hel

Posted: March 26th, 2008, 1:19 pm
by AlisoBob
mikeinsanfran wrote: 1) Am I better off trying to locate just a good motor and trans with electricals, or should I be looking for an entire donor bike instead?

Loose motors sell for 65% of a whole bike. When buying a whole bike you can really test out the motor first, and sell what you dont need...recouping some of your $$$.. Its the only way to go. A 1994 should be about $1700 or so.

2) What are the differences in the 500 motors by year? What should I be looking for?

90' and newer have a better clutch


3) Does anyone sell a kit to avoid all of the fab work?

No, but there are many home conversions. Do you have any fab skills?


4) Is there anyone that I can have do the conversion for me? What would it cost?

Teem Trubble. Mike cant spell for shit, but builds a hell of a good bike. Blows Service honda away..

5) How difficult is my particular bike to convert?
Not hard, but it is time consuming if you want a professional looking product

6) What generation is the 04crf?

Gen 4

7) I know this is a dumb one, but what kind of gas mileage do you guys get out of your bikes. I am curious about what my range will be with a 4 gallon tank.

( 4 x 30 mpg = roughly 120 miles) This is riding it like a Johnny Law is on your 6. Riding like you stole it will lower the mileage.

Posted: March 26th, 2008, 2:03 pm
by mikeinsanfran
Thank you much Bob. This site is awesome.

Posted: March 26th, 2008, 2:46 pm
by teemtrubble
You better be careful Bob I'll tell the Clan I won't cook for them cause your picking on me :wink:

Oh and Jay the next meal is Prime Rib and Lobster!

Hit me back trubble

Posted: March 27th, 2008, 8:17 pm
by mikeinsanfran
Hey trubble, give me a ring man, 415 235 8154, my name is mike too(my mom didn't like me either). A little bird told me that you were the man to help me out on the fab work. I saw the bike that you did too, so I really don't give a shite if you can spell. Just a guy who needs a hand, and what I lack in alum fabrication skills I recoup in pizza and beer buying.

Re: I want to make my street legal 04 crf450r a cr500r. Hel

Posted: March 28th, 2008, 8:36 am
by Slow old Fart
mikeinsanfran wrote:The only thing cooler than a street legal crf540r is a street legal cr500af. I just want to find out what the conversion process entails. I have a ton of questions too. If you can answer any of them, or you live in the San Francisco Bay area and can help, please write me back.

1) Am I better off trying to locate just a good motor and trans with electricals, or should I be looking for an entire donor bike instead?

2) What are the differences in the 500 motors by year? What should I be looking for?

3) Does anyone sell a kit to avoid all of the fab work?


4) Is there anyone that I can have do the conversion for me? What would it cost?

5) How difficult is my particular bike to convert?

6) What generation is the 04crf?

7) I know this is a dumb one, but what kind of gas mileage do you guys get out of your bikes. I am curious about what my range will be with a 4 gallon tank.
Thanks a lot. Any help will be appreciated.