714's 08 CRF250-500 Conversion

AMA714 · Post by **AMA714** » April 27th, 2011, 3:13 pm

Not much progress in the last couple weeks. I need reeds, so I think Ill order up either V-Force or a Rad valve.
Opinions? Anyone has a used one... Im looking

AMA714 · Post by **AMA714** » April 27th, 2011, 3:15 pm

I am liking the new style front fender and am going to make some custom shroud graphics.
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sugarshane · Post by **sugarshane** » April 27th, 2011, 3:47 pm

AMA714 wrote: so I grab a spare front fender from my 09 450 and started making it fit.

What all needed to be done to make it fit?

UknowDamright · Post by **UknowDamright** » April 27th, 2011, 9:15 pm

I have a set of stock rad valves, out of a running 1990 CR500, I would be willing to sell

AMA714 · Post by **AMA714** » April 28th, 2011, 6:20 am

sugarshane wrote:
AMA714 wrote: so I grab a spare front fender from my 09 450 and started making it fit.

What all needed to be done to make it fit?

I made a template to locate the 08 clamp holes in the proper location. 2 of the 09 450 holes were very close so I just elongated them with a die grinder. Then I ground the side of the plastic to give a little clearance for the brake cable guide that is attached to the bottom clamp. Its at an angle on the 08 and the bolt head hits the fender. The 09 fender also needed some grinding to fit up in front of the bottom clamp.

After the fender was fit, i had to mod the 08 number plate to have a new bottom contour. Ill take a couple close up pictures for you.

UknowDamright · Post by **UknowDamright** » April 28th, 2011, 8:18 am

AMA714 wrote:Bit the bullet.... Bought the PC pipe and silencer.. I want to ride this thing bad..

Anyone have a Rad Valve for sale?????

I have a set of stock rad valves, out of a running 1990 CR500, I would be willing to sell

http://www.youtube.com/user/500bigbore · Post by **Roostius_Maximus** » April 28th, 2011, 9:26 am

whats a stock rad valve?

UknowDamright · Post by **UknowDamright** » April 28th, 2011, 11:00 am

Roostius_Maximus wrote:whats a stock rad valve?

Rad Valve, AKA: Reed Valve System. Stock means they came on the bike from the factory, they go in the rear of the engine jug, in front of the carburetor

Nodge · Post by **Nodge** » April 28th, 2011, 11:54 am

I'm not trying to be a dink, but....

Roosty knows exactly what you meant, but you missed his sarcasm.
"Rad Valve" is a Boyesen trade mark.
There is no such thing as a stock rad valve.
That is just what Boyesen calls their reed block or cage, or whatever you wanna call it.

Post by **AlisoBob** » April 28th, 2011, 12:09 pm

UknowDamright wrote: I have a set of stock rad valves, out of a running 1990 CR500

Your jug as two reed valve assemblies.

Must be a Mugen......

UknowDamright · Post by **UknowDamright** » April 28th, 2011, 4:25 pm

nice guys, you got me, I feel like an idiot now. probably wont be the last time!!

sugarshane · Post by **sugarshane** » April 28th, 2011, 11:37 pm

AMA714 wrote:
sugarshane wrote:
AMA714 wrote: so I grab a spare front fender from my 09 450 and started making it fit.

What all needed to be done to make it fit?
I made a template to locate the 08 clamp holes in the proper location. 2 of the 09 450 holes were very close so I just elongated them with a die grinder. Then I ground the side of the plastic to give a little clearance for the brake cable guide that is attached to the bottom clamp. Its at an angle on the 08 and the bolt head hits the fender. The 09 fender also needed some grinding to fit up in front of the bottom clamp.

After the fender was fit, i had to mod the 08 number plate to have a new bottom contour. Ill take a couple close up pictures for you.

Sweet! I would like to see them. I think that it looks a lot better with the new fender. I did the same thing on my 04 YZ250 and it looked a lot better than the ugly fender that Yamaha ran for the past 30 years...

AMA714 · Post by **AMA714** » April 30th, 2011, 8:16 am

here is a couple pictures to show new holes and the clearance for brake cable guide and front number plate.

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AMA714 · Post by **AMA714** » May 3rd, 2011, 5:57 pm

Got my pipe and silencer today... Wish I had a Tig here to fab some brackets...
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Went ahead and had some graphics made. I knew I wanted CR500 on it and maybe a rising sun.. so this is what the concepts look like. I like both actually... But sticking with the HRC
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Post by **AlisoBob** » May 3rd, 2011, 5:59 pm

AMA714 · Post by **AMA714** » May 3rd, 2011, 6:05 pm

Hey Bob.. Im all about making my silencer look right.. Did you do a newer CRF sub frame or did you use the older single muffler (04-05) style.

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Post by **AlisoBob** » May 3rd, 2011, 6:34 pm

Stock, 2004 CRF250X subframe.

On my build I hung it crooked.... hated it... and remounted ir correctly.

I had to build this little "Dipsy-Doodle" to go around the subframe, but I'm glad that I did....

Most of the A/F's you see at the dunes have the silencer all torn up on the inside from the paddle hitting it..... because its angled in. Not mine.

AMA714 · Post by **AMA714** » May 3rd, 2011, 6:54 pm

I will have to fab a front and back bracket to hang silencer. There will be no need of the dippsy-doodle. It lines up nice, just need to make the tabs.

mxdogger · Post by **mxdogger** » May 8th, 2011, 5:03 am

Zach nice job so far on the conversion and those graphics are really cool. whats the website for the company that did them ?

Kuma · Post by **Kuma** » May 8th, 2011, 9:18 am

mxdogger wrote:Zach nice job so far on the conversion and those graphics are really cool. whats the website for the company that did them ?

http://nineoneninedesigns.com/

AMA714 · Post by **AMA714** » May 8th, 2011, 9:05 pm

Hey Dogger, thanks. Send them an email, and ask for the Zach 500A/F design... he kept it. They are based out of NY.
nineonenine@yahoo.com

AMA714 · Post by **AMA714** » May 17th, 2011, 9:47 am

Anyone done the new style (06-09) CRF250R sub frame. I would like to see how you mounted silencer. The rails on 08 are steeper and shorter than the 04-05.

If I get the tail of the pipe in a nice position it puts the silencer too high for sideplates and fender... Pissin me off... I want to make mounts that dont require any changes to the pipe and silencer, in case i need to replace later.

AMA714 · Post by **AMA714** » July 14th, 2011, 8:30 am

Ok boys.... been a hell of a long time, so I thought I would update a little. The bike is finally done and I am off to Cycle Ranch today for her maiden voyage.

Here are a few more pics of the things I needed to get done since last post.

I went single outlet head using the large CRF style outlet

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AMA714 · Post by **AMA714** » July 14th, 2011, 8:35 am

As you can see in the photo, I had Dogger use the stock CRF 250R headstay. Cut and drilled, but using the Honda shape.

Next was the airbox. I have a 2008 CRF250R and found out pretty quick that the stuff hoons had done on the older 250F didnt quite work. Faceplate, airboot and silencer brackets I made using a flat sheet of aluminum

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AMA714 · Post by **AMA714** » July 14th, 2011, 8:41 am

The rear silencer bracket was roughed out pretty quick. I dont like they way it looks, but to be honest...its hidden behind the side plate. I utilized the stock 250 muffler bracket bolt and then tied it back to the rear fender bolt. Once I had the proper bend to match the offset in frame, it came together pretty easy.

Next was the stinger mount...
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I cut off the PC mount tab as it was stuck against the subframe mount on the 250F.I flipped it to the top side of the pipe and welded it upright. Then I made a offset bracket using the stock mid pipe mount hole.[/img]

BannedCR500Riders.com

714's 08 CRF250-500 Conversion

Anyone have a Rad Valve for sale?????

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