TRX250R.ORG

General => Projects => Topic started by: Boatright on February 21, 2014, 05:57:06 PM

Title: 2014 MX build
Post by: Boatright on February 21, 2014, 05:57:06 PM

New to this site, I'd like to get more ideas and feedback on my build. 89 frame fresh blue powder but i'm about to gusset.
+3 dc-4 arms
20" float evols
ESR 310
450r lt elka stage for with link
-1 lsr swinger
+4 tusk axle
(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2779_zps60e47e7f.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2779_zps60e47e7f.jpg.html)

I have to do my best to make this rear shock work.

(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2237_zpsecd5480d.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2237_zpsecd5480d.jpg.html)

Title: 2014 MX build
Post by: jcs003 on February 21, 2014, 06:53:01 PM

Welcome to the site.  You got a great start.

John

Title: 2014 MX build
Post by: Fear250r on February 21, 2014, 08:33:37 PM

Welcome aboard!  Post up an intro of yourself in the intro section!

Make sure them shocks are set up for +3's my friend!


Jesse

Title: 2014 MX build
Post by: rk88r on February 21, 2014, 08:55:06 PM

Welcome, the linkage conversion will be interesting.

Title: 2014 MX build
Post by: havinnoj on February 21, 2014, 09:29:08 PM

Welcome to the site!  What are your plans for the motor?

Title: 2014 MX build
Post by: Boatright on February 22, 2014, 12:05:44 AM

Quote from: Fear250r;26392

Welcome aboard!  Post up an intro of yourself in the intro section!

Make sure them shocks are set up for +3's my friend!


Jesse

they are, thanks.

Title: 2014 MX build
Post by: Boatright on February 22, 2014, 12:08:39 AM

Quote from: havinnoj;26397

Welcome to the site!  What are your plans for the motor?

ESR 310 non pv trx9 port, hot rods crank, v force pro series reeds, fmf fatty.

Title: 2014 MX build
Post by: Victork on February 22, 2014, 03:31:01 AM

Welcome aboard!

Title: 2014 MX build
Post by: havinnoj on February 22, 2014, 08:27:30 AM

Quote from: Boatright;26403

ESR 310 non pv trx9 port, hot rods crank, v force pro series reeds, fmf fatty.

Cool.  Are you going to race this R or just building as a project?

Title: 2014 MX build
Post by: mx250r91 on February 22, 2014, 10:21:52 AM

I used the same shock and linkage a few years ago for my XC build. The top shock mount had to be lowered and moved forward to get the shock and linkage geometry correct and extended/compressed lengths for 20" tires. I still ended up cracking the airbox a bit even after raising it. I think the sprocket guard helped a little. This combination works good. Very smooth but little progression.

(http://i97.photobucket.com/albums/l209/mx91a/2012%20XC%20250R%20Build/IMG_0168.jpg~original)

Title: 2014 MX build
Post by: Boatright on February 22, 2014, 10:52:59 AM

Quote from: havinnoj;26414

Cool.  Are you going to race this R or just building as a project?

yeah its strictly motocross. A class locally C in nationals.

Title: 2014 MX build
Post by: Boatright on February 22, 2014, 10:55:11 AM

Quote from: mx250r91;26425

I used the same shock and linkage a few years ago for my XC build. The top shock mount had to be lowered and moved forward to get the shock and linkage geometry correct and extended/compressed lengths for 20" tires. I still ended up cracking the airbox a bit even after raising it. I think the sprocket guard helped a little. This combination works good. Very smooth but little progression.

(http://i97.photobucket.com/albums/l209/mx91a/2012%20XC%20250R%20Build/IMG_0168.jpg~original)

This is perfect, what did you do with the front of the linkage? aluminum spacers? what swingarm?

Title: 2014 MX build
Post by: mx250r91 on February 22, 2014, 11:14:15 AM

Quote from: Boatright;26433

This is perfect, what did you do with the front of the linkage? aluminum spacers? what swingarm?

Steel spacers in the front linkage. The swingarm is an 88-89 Roll Design, the linkage mounting point has been moved rearward approx. 3/4" to match the 04-05 450R swingarm.

Title: 2014 MX build
Post by: Boatright on February 22, 2014, 11:53:13 AM

Quote from: mx250r91;26434

Steel spacers in the front linkage. The swingarm is an 88-89 Roll Design, the linkage mounting point has been moved rearward approx. 3/4" to match the 04-05 450R swingarm.

Okay sorry for all the questions I really want this to work. Was it completely needed to move the top and swingarm shock mount?

Title: 2014 MX build
Post by: mx250r91 on February 22, 2014, 12:25:20 PM

Quote from: Boatright;26439

Okay sorry for all the questions I really want this to work. Was it completely needed to move the top and swingarm shock mount?

Yes to make the shock and linkage work as they were (I didn't want to have a custom shock made). If I used the 250R swingarm and shock locations, the shock clevis bound up on the rear linkage and there was too much up travel with 20" tires. You might be able to get away with it for 18" tires (MX) but you need to go through all the measurements and calculations to get it right.

Title: 2014 MX build
Post by: Boatright on February 22, 2014, 02:02:19 PM

Quote from: mx250r91;26441

Yes to make the shock and linkage work as they were (I didn't want to have a custom shock made). If I used the 250R swingarm and shock locations, the shock clevis bound up on the rear linkage and there was too much up travel with 20" tires. You might be able to get away with it for 18" tires (MX) but you need to go through all the measurements and calculations to get it right.

awesome I will try this.

Title: 2014 MX build
Post by: Boatright on March 03, 2014, 04:26:56 PM

(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2854_zpsb38e4142.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2854_zpsb38e4142.jpg.html)

(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2853_zps1bdd1ab6.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2853_zps1bdd1ab6.jpg.html)
Mounted the long travel 450r shock. Made spacers to fit link and top shock mount. This will only work with an aftermarket swingarm to make clearance for the elka link travel.

Title: 2014 MX build
Post by: Tbone07 on March 03, 2014, 09:45:24 PM

I would get a Pumashine gusset kit on that frame asap. Crack city if you plan on doing some serious MX

Title: 2014 MX build
Post by: patman13mia on March 03, 2014, 10:19:53 PM

this is true info on the gussett kit.. thats why i bought one cause of hitting alot jumps and started getting cracks here and there

Title: 2014 MX build
Post by: Boatright on March 03, 2014, 10:49:22 PM

Quote from: Tbone07;27624

I would get a Pumashine gusset kit on that frame asap. Crack city if you plan on doing some serious MX

Quote from: patman13mia;27632

this is true info on the gussett kit.. thats why i bought one cause of hitting alot jumps and started getting cracks here and there

Thanks guys, I actually ordered one this past weekend.

Title: 2014 MX build
Post by: Boatright on March 12, 2014, 10:30:15 PM

(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2864_zpse27fe47d.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2864_zpse27fe47d.jpg.html)
(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2884_zps0091f7cc.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2884_zps0091f7cc.jpg.html)Rear end done and gussets added. Waiting on nerfs, clutch cover, and radiator!

Title: 2014 MX build
Post by: Pumashine on March 12, 2014, 11:38:08 PM

Quote from: Boatright;28757

Rear end done and gussets added. Waiting on nerfs, clutch cover, and radiator!

Wow, first time I have ever seen gussets put over such a nice looking PC

Title: 2014 MX build
Post by: rablack21 on March 13, 2014, 08:32:03 AM

Quote from: Pumashine;28765

Wow, first time I have ever seen gussets put over such a nice looking PC

Also, first time I have ever seen anybody welding in a hoodie! LOL

Looks like you are making progress!

Title: 2014 MX build
Post by: Boatright on March 14, 2014, 12:16:12 PM

yeah it was depressing stripping off some of that powder. lol

Title: 2014 MX build
Post by: PNWrider on May 03, 2014, 04:18:56 PM

Any updates? [MENTION=685]Boatright[/MENTION]

Title: 2014 MX build
Post by: Boatright on May 04, 2014, 10:16:03 PM

(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2940_zpsd4bc1bd5.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2940_zpsd4bc1bd5.jpg.html)
(http://i1147.photobucket.com/albums/o550/Boatright17/IMG_2909_zps03c583c5.jpg) (http://s1147.photobucket.com/user/Boatright17/media/IMG_2909_zps03c583c5.jpg.html)

Title: 2014 MX build
Post by: PNWrider on May 04, 2014, 11:25:58 PM

Looks good! Hows that rear shock setup working for you?

Title: 2014 MX build
Post by: Boatright on May 05, 2014, 11:14:48 PM

Quote from: PNWrider;33088

Looks good! Hows that rear shock setup working for you?

so far its outstanding!