And so it begins! Yz250 build! UPDATE

bgpn35
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bgpn35
Edited Date/Time 3/20/2016 6:12pm
Found me a nice 05 yz250 for $1800 that I'm going to give it my best to make it look new. I want to put the newer forks and plastic kit for sure. I started tearing it down yesterday and ended my night with a seized swing arm pivot bolt but I soaked her overnight and it came fairly easy today! I'm having a blast with this and love looking what you other guys have done to your builds! Now it's time for cleaning and ordering parts! This is my first build so I might need some tips! Haha









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T-MAC
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T-MAC 12/18/2015 1:29pm
12/18/2015 1:29pm
Looking forward to your progress. Doesn't look like it was in that terrible of shape to begin with!
bgpn35
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bgpn35 12/18/2015 2:39pm
12/18/2015 2:39pm
Thanks guys! Just got out the garage cleaning and polishing the engine! The Nlaws just got here soooooooo y'all know the rest haha! Try to post a clean engine tomorrow
Slosh 112
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Slosh 112 12/18/2015 4:19pm
12/18/2015 4:19pm
Awesome Im going to build a YZ once my RM is finished, gotta have at least one in your life aye! Nice work mats, I have the same one in my shed, trying to find another one.

The Shop

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mattman631
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mattman631 12/18/2015 7:00pm
12/18/2015 7:00pm
How are you cleaning your motor? Elbow grease or bead/soda blaster? I have never done it but I've seen guys in these threads cover up the open ports and blast the cases clean which would be nice. My 125 I used a scotch bright and aluminum cleaner and a lot of cold beer. I got them looking nice but still am not able to get in the tight spaces.

I've converted two bikes 05 250 and 05 125 to the SSS setup. It's not difficult but if you have any questions feel free to ask. I also have info on the 09+ Swingarm upgrade if your interested in that!

Look forward to watching the build.
bgpn35
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bgpn35 12/18/2015 7:59pm
12/18/2015 7:59pm Edited Date/Time 12/18/2015 8:09pm
mattman631 wrote:
How are you cleaning your motor? Elbow grease or bead/soda blaster? I have never done it but I've seen guys in these threads cover up the...
How are you cleaning your motor? Elbow grease or bead/soda blaster? I have never done it but I've seen guys in these threads cover up the open ports and blast the cases clean which would be nice. My 125 I used a scotch bright and aluminum cleaner and a lot of cold beer. I got them looking nice but still am not able to get in the tight spaces.

I've converted two bikes 05 250 and 05 125 to the SSS setup. It's not difficult but if you have any questions feel free to ask. I also have info on the 09+ Swingarm upgrade if your interested in that!

Look forward to watching the build.
A lot of elbow grease for sure! I am going at it right now with this stuff called aluminator, put it on with a rag and wipe it off with a damp rag. The spots that are worse I just use a wire brush or scotch bright, and it's looking pretty good so far! For the hard to get to spots I'm going to get my dremel tool and see what happens but it should turn out pretty good. Yea, let me know about that swingarm upgrade, I'm all ears! Thanks
Oh yea, on the fork conversion I was thinking of getting forks off eBay and using the clamps off my 450 if they will work and getting a new aftermarket set for the 450. What all do I need to know about that whole setup?
bgpn35
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bgpn35 12/19/2015 4:32am
12/19/2015 4:32am
Tumblin wrote:
Oh! oooh! OOOOOH! ....and so it continues!!
http://medford.craigslist.org/mpo/5362974364.html
That's some good looking stuff, I would definitely be interested in the shock because the one I have is leaking. That would be almost as cheap as rebuilding the one I have because I have to get someone to rebuild it since I don't know what I'm doing and would have to buy the tools haha. I have another question about the air box, I'm going to get the whole box off bto if the sub frames are the same as the 16's because the old box is busted?
mattman631
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mattman631 12/19/2015 7:40am
12/19/2015 7:40am
The sub frames are the same as the 16. For the plastic swap you just need the air box, rear fender and number plates. You can remove your old mounts and insert them into the new air box.

If that's your 450 in the background the clamps are different. The 06-09 4-stroke clamps are what you want for 06-07 & 08-09 forks. The 125/250f steering stem is shorter than the 250/450 steering stem. 06-07 forks will bolt up to your current front brake/wheel set up. If you get 08-09 forks you will need new front brake, axle and spacers. The 2010 + 450 used a different offset triple and (pretty sure) different outer diameter fork tubes. Not 100% sure on the 250f years. All 2 strokes 08+ have the same set up.
bgpn35
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bgpn35 12/19/2015 10:03am
12/19/2015 10:03am
Thanks for the info mattman and everyone else! This is what I have done with the engine in the last little bit, think it's looking pretty good considering it was pretty nasty

Splifrover
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Splifrover 12/19/2015 10:30am
12/19/2015 10:30am
I have everything you need for 15-16 conversion for sale. Includes OEM 15-16 Airbox. I installed everything but never rode. Still brand new.
bgpn35
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bgpn35 12/19/2015 11:51am
12/19/2015 11:51am
Well it's coming around! This was it 2 hours ago!

now this

yak651
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yak651 12/19/2015 1:04pm
12/19/2015 1:04pm
bgpn35 wrote:
Well it's coming around! This was it 2 hours ago![img]https://p.vitalmx.com/photos/forums/2015/12/19/115857/s1200_image.jpg[/img] now this[img]https://p.vitalmx.com/photos/forums/2015/12/19/115858/s1200_image.jpg[/img]
Well it's coming around! This was it 2 hours ago!

now this

Nice, I'm finding out those little cavities area a pain in the a$$ to clean!
yak651
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yak651 12/19/2015 1:05pm
12/19/2015 1:05pm
Splifrover wrote:
I have everything you need for 15-16 conversion for sale. Includes OEM 15-16 Airbox. I installed everything but never rode. Still brand new.
How much including shipping? The guy on ebay that sells the kit with airbox is out right now (except white), said he will be getting more in at the end of the month.
Splifrover
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Splifrover 12/19/2015 1:06pm
12/19/2015 1:06pm
Looks good. What did you use? I was going to soda plast mine.
bgpn35
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bgpn35 12/19/2015 1:24pm
12/19/2015 1:24pm
Splifrover wrote:
Looks good. What did you use? I was going to soda plast mine.
I used aluminator, this stuff works! I clean our tractor trailer wheels with it. All I did was put it on a rag and rub it down and spray it off with the hose pipe. For the cavities I put it on a paper towel and rubbed it in and sprayed it off! After that I scrubbed it with SOS pads, I just finished the subframe and stuck it on there to see what it looks like.



bgpn35
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bgpn35 12/21/2015 10:31am
12/21/2015 10:31am
mattman631 wrote:
The sub frames are the same as the 16. For the plastic swap you just need the air box, rear fender and number plates. You can...
The sub frames are the same as the 16. For the plastic swap you just need the air box, rear fender and number plates. You can remove your old mounts and insert them into the new air box.

If that's your 450 in the background the clamps are different. The 06-09 4-stroke clamps are what you want for 06-07 & 08-09 forks. The 125/250f steering stem is shorter than the 250/450 steering stem. 06-07 forks will bolt up to your current front brake/wheel set up. If you get 08-09 forks you will need new front brake, axle and spacers. The 2010 + 450 used a different offset triple and (pretty sure) different outer diameter fork tubes. Not 100% sure on the 250f years. All 2 strokes 08+ have the same set up.
i just want to make sure before I buy, I need 06-09 250f or 450 clamps? Thanks

Pit Row

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mattman631
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mattman631 12/21/2015 10:36am
12/21/2015 10:36am
bgpn35 wrote:
i just want to make sure before I buy, I need 06-09 250f or 450 clamps? Thanks
Yes 06-09 YZ/YZF 450 clamps. The 125/250F clamps will work but you will have to use your existing steering stem. I might actually have an extra set laying in the shop. I can check when i get home.
bgpn35
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bgpn35 12/21/2015 11:43am
12/21/2015 11:43am
bgpn35 wrote:
i just want to make sure before I buy, I need 06-09 250f or 450 clamps? Thanks
mattman631 wrote:
Yes 06-09 YZ/YZF 450 clamps. The 125/250F clamps will work but you will have to use your existing steering stem. I might actually have an extra...
Yes 06-09 YZ/YZF 450 clamps. The 125/250F clamps will work but you will have to use your existing steering stem. I might actually have an extra set laying in the shop. I can check when i get home.
Ok thanks! What about the rear shock, what years will work 250f or 450? I just want to know about that stuff before I waste my time and have to send something back. Thanks again
mattman631
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mattman631 12/21/2015 1:22pm
12/21/2015 1:22pm
bgpn35 wrote:
Ok thanks! What about the rear shock, what years will work 250f or 450? I just want to know about that stuff before I waste my...
Ok thanks! What about the rear shock, what years will work 250f or 450? I just want to know about that stuff before I waste my time and have to send something back. Thanks again
Rear shock is the same as far as fitment goes. I had a 450 shock on my old 250 and I swapped it back and forth for my 125 a few times. If your going to have it re-sprung and/or re-valved then it wont matter which shock you get.
bgpn35
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bgpn35 12/21/2015 2:32pm
12/21/2015 2:32pm
mattman631 wrote:
Rear shock is the same as far as fitment goes. I had a 450 shock on my old 250 and I swapped it back and forth...
Rear shock is the same as far as fitment goes. I had a 450 shock on my old 250 and I swapped it back and forth for my 125 a few times. If your going to have it re-sprung and/or re-valved then it wont matter which shock you get.
Ok thanks, the shock I have needs rebuilt. I found some on eBay that look way better than this one for almost as cheap as a rebuild on this one. I just wanted to make sure that nothing was different and I will at least spring it for my weight
Tumblin
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Tumblin 12/21/2015 9:00pm
12/21/2015 9:00pm
Your stock clamps will work great with my 06 125 set up and if you give me my asking price on the set I'll ship them free.

I believe the shock alone would cost you about $35-$40 if you would just want the shock.

I believe the set to be low hours, the shock body has no wear where my 50 hour 450 was rubbed through the anodizing. Of course it is hard to compare riding styles. My set with original Titanium spring shock off a 125 may match up well for you. What's your weight and speed?












Tumblin
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Tumblin 12/21/2015 9:50pm
12/21/2015 9:50pm Edited Date/Time 12/21/2015 9:56pm
Oops, I got you confused with another thread thinking you had an 05 125. My SSS for the 125 set up will slide right in your existing clamps, wheel and caliper setbup.

Mattman, i do know the 06 07 yz450f uses a longer steering stem then the 08 and 09 yz450f'
bgpn35
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bgpn35 12/22/2015 4:53am
12/22/2015 4:53am
Tumblin wrote:
here's a break out of model and year specs for you to refer to

http://www.tech-care.com/yamaha.php
Thanks for your help, I really appreciate it! If you wanted to let the shock go by itself what do you want for it? If you wanted to let it go you could keep the spring because I'm about 220lbs so I would need a 5.9 or 6.0 shock spring
Tumblin
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Tumblin 12/22/2015 5:33am
12/22/2015 5:33am
Tumblin wrote:
here's a break out of model and year specs for you to refer to

http://www.tech-care.com/yamaha.php
bgpn35 wrote:
Thanks for your help, I really appreciate it! If you wanted to let the shock go by itself what do you want for it? If you...
Thanks for your help, I really appreciate it! If you wanted to let the shock go by itself what do you want for it? If you wanted to let it go you could keep the spring because I'm about 220lbs so I would need a 5.9 or 6.0 shock spring
Well, for sure $150 + shipping Lol...
I'll see what the opportunity is for moving that stock spring. I also have a live one that claims to want the set. I'll be back at ya, thanks!
bgpn35
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bgpn35 12/22/2015 6:31am
12/22/2015 6:31am
Tumblin wrote:
Well, for sure $150 + shipping Lol... I'll see what the opportunity is for moving that stock spring. I also have a live one that claims...
Well, for sure $150 + shipping Lol...
I'll see what the opportunity is for moving that stock spring. I also have a live one that claims to want the set. I'll be back at ya, thanks!
Ok, let me know! Thanks
mattman631
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mattman631 12/22/2015 6:41am
12/22/2015 6:41am
Tumblin wrote:
Oops, I got you confused with another thread thinking you had an 05 125. My SSS for the 125 set up will slide right in your...
Oops, I got you confused with another thread thinking you had an 05 125. My SSS for the 125 set up will slide right in your existing clamps, wheel and caliper setbup.

Mattman, i do know the 06 07 yz450f uses a longer steering stem then the 08 and 09 yz450f'
As far as I know 06-09 450 use the same steering stem. Worst case you press your current stem out and into the new clamps. Also I looked last night and I have a bottom clamp with stem but no top clamp...
bgpn35
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bgpn35 12/22/2015 2:35pm
12/22/2015 2:35pm
Ok, I got some stuff done today, not much but considering how the wiring looked before I started I'm pretty happy! I have the boyesen clutch, ignition, and water pump coming in the next couple days! It's getting there I just need and want more parts! Haha

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