Gen 4 250x Conversion street legal/super moto

Jeff4510 · Post by **Jeff4510** » August 6th, 2010, 4:25 pm

Hi guys, sorry no pics yet but I have everything in place (almost) to get started. Aquired an 05 250x street legal and a motor from here. It's already back From GSS porting and it's Beautiful!! couldn't be happier!

Goal is to build a supermoto street legal psycho ride!

i'm sure I'll be asking a lot of questions as this is my first AF

2strokeforever · Post by **2strokeforever** » August 6th, 2010, 9:02 pm

im pretty sure the 250 x is a gen 4...

Jeff4510 · Post by **Jeff4510** » August 12th, 2010, 8:01 am

[/img]

http://www.youtube.com/user/500bigbore · Post by **Roostius_Maximus** » August 12th, 2010, 8:26 am

awesome

Jeff4510 · Post by **Jeff4510** » September 20th, 2010, 7:16 pm

got the bike down from Oregon this weekend and just stripped it today in about 4 hours.

Pics to follow. anyone know what spacers i use for the motor?

thanks!

Jeff4510 · Post by **Jeff4510** » September 20th, 2010, 7:44 pm

Jeff4510 · Post by **Jeff4510** » September 20th, 2010, 7:53 pm

[/img]

I'm trying to make these smaller and did so on photobucket but the don't seem to shrink here

Jeff4510 · Post by **Jeff4510** » September 20th, 2010, 8:14 pm

so both radiators are a little bent, will stockers be enough to cool it or should I upgrade? My450 has bigger rads than this 250

Jeff4510 · Post by **Jeff4510** » September 21st, 2010, 11:40 am

can anyone confirm which spacers I need for the swingarm? My stock spacer is 6mm (does ths make any sense?). It's an 05 250x. I called SH and they will not divulge which spacers I need even though I wanted to order from them- how silly, eh?

Thanks!

Jeff

Post by **AlisoBob** » September 21st, 2010, 3:03 pm

Service Honda sucks....

The stock rads are fine, my engine never boiled in the CRF chassis.. where it has in the CR500 chassis.

Check your email for the bushing size, and speaking of size.... tone down those photos....

Jeff4510 · Post by **Jeff4510** » September 21st, 2010, 5:22 pm

perfect, thanks! Can you change the thread title to Gen 4? it looks like a can't and I'd like to have it correct or maybe I should start a new one?

jarnott71 · Post by **jarnott71** » September 22nd, 2010, 3:56 am

edit top right corner of your post

Jeff4510 · Post by **Jeff4510** » September 22nd, 2010, 9:43 am

I am going to do the full cradle (the only correct way IMO)

Post by **AlisoBob** » September 22nd, 2010, 9:45 am

Sargents Hardcare Race Parts can bend the lower cradle for you... Right to the foot pegs.

PM Solid Bro....

gregrobo · Post by **gregrobo** » September 22nd, 2010, 7:29 pm

Jeff4510 wrote:

I am going to do the full cradle (the only correct way IMO)

nice the only way to go imo are you using different swingarm bushes or you marking spacers to go behind the engine bushes

Jeff4510 · Post by **Jeff4510** » September 29th, 2010, 9:39 am

Anyone have any experience with these radiators? claim to be better than stock

http://cgi.ebay.com/ebaymotors/Left-04- ... ccessories

Post by **AlisoBob** » September 29th, 2010, 10:23 am

The Aussies bought some, said they were pretty good.

matt_NC · Post by **matt_NC** » September 29th, 2010, 10:47 am

I just bought a pair.
Quality is good.
They are a lot bigger!

Check my thread I had to modify mine to clear the pipe.

Jeff4510 · Post by **Jeff4510** » October 6th, 2010, 6:40 pm

I know this sounds like a stupid question but I didn't pull my motor from a runner. I just bought the 16 tooth front CS from sprocketspecialists and I have no idea which side faces which. Is the chain supposed to be close to the case or far away? getting ready to mock it all up and this is quite crucial!!

Post by **AlisoBob** » October 6th, 2010, 7:10 pm

I dont think a 16 tooth will fit with a 520 size chain?

britincali · Post by **britincali** » October 6th, 2010, 7:19 pm

with a 15 the chain rubs the case so I dont see how a 16 is gonna work....

Jeff4510 · Post by **Jeff4510** » October 7th, 2010, 12:18 am

I'll guess I'll give it a try, so which side faces which way?

matt_NC · Post by **matt_NC** » October 7th, 2010, 5:41 am

16T does sound awefully huge.

What size rear sprocket are you planning on running?

1 52141-KZ4-J40 Bushing ( long side, 59mm) right side

1 52142-KZ4-J40 Bushing ( short side, 54mm) left side

with those spacers the chain will line up perfect

I never checked my chain alignment during mock-up

Jeff4510 · Post by **Jeff4510** » October 7th, 2010, 8:32 am

the 16t does fit but it's very tight! Since this will have supermoto 17s on it and everything I've read here says none of these guys are getting enough top end, I'll probably run the smallest sprocket I can. thanks for the picture but not sure if that helps since that is the stock sprocket. Should the chain be as close as possible to the cases or as far away, there's only two choices and I'd hate to mae the wrong one! Maybe I'll post some pics if I do not get a definitive answer. I want to verify everything during mock up because well, that's the way I roll

EDIT: Just pulled the CS cover off of my streeted crf450x and the sprocket is definitely close to the case. So lip is on the outside pushing countersprocket in: sounds correct gentlemen??

Jeff4510 · Post by **Jeff4510** » October 7th, 2010, 11:09 am

this was the trick, the spacers below on those sides, fits perfect! thx

matt_NC wrote:

16T does sound awefully huge.

What size rear sprocket are you planning on running?

1 52141-KZ4-J40 Bushing ( long side, 59mm) right side

1 52142-KZ4-J40 Bushing ( short side, 54mm) left side

with those spacers the chain will line up perfect

I never checked my chain alignment during mock-up

BannedCR500Riders.com

Gen 4 250x Conversion street legal/super moto

Gen 4 250x Conversion street legal/super moto

The pipe and some eye candy too

here we go!

pics

GSS port job

spacers?

Frame

Re: Frame

rads

chain alignment