2006 YZ125 Spec Build

KVA_536
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KVA_536
Edited Date/Time 5/13/2019 12:40pm
I am about to begin my winter build for 18/19. Just picked up the bike south of CHI for $1700.00. My goal is to build a race ready machine for far under the price of a brand new YZ. I will be building this with my sponsors help throughout the whole process. I am really fortunate to have these companies supporting me with these builds. I have a BUD Racing Spec bike in mind with a few in house companies (TK Motorworks & Speed Technologies) to get the tuning dialed in just right.

The plan is to have the build completed by Feb, to go and complete in the Kicker Arenacross in CHI. Then from there on its SX Futures races in INDY & Nashville.

Looking forward to the input and criticism along the way

Cheers!





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MOTO557556
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MOTO557556 10/30/2018 2:56pm
10/30/2018 2:56pm
Great bike !

Make sure you address the shift stopper update.

Look forward to the build.
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KVA_536
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KVA_536 10/31/2018 6:11am
10/31/2018 6:11am











After finally getting into it, I was immediately greeted by a few things that raised suspicion about the rest of the bike. Just in pulling the motor to replace a leaky water pump seal, I was able to find some quirks that I had not seen when looking over the bike before purchasing it. Cracked throttle housing, custom spacer for the exhaust & the additional breather vents for the power valve linkage, oh and the safety wire hose clamps were a nice touch too.

I have the clutch stop replacement, new spring, Boyesen Supercooler kit & water pump rebuild kit (Athena) being delivered today. With a few more 50 degree days left here in MI, I wanna get a chance to ride her the way she stands before I go "ape shit" with mods
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The Shop

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KVA_536
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KVA_536 12/7/2018 8:46am
12/7/2018 8:46am
Well after having an offer accepted for a new house the YZ was left on the back burner. That also helped with lead times and some of the parts to be shipped. Below is the list of changes that I made this last week:

2007 Clutch Stop Installed
New Water Pump Bearing and seals
Bud Racing Carbon IGN Cover
GYTR pressure plate
Hinson Inner hub
BUD Racing Clutch Kit
Boyeson SuperCooler Kit
Titanium Cylinder nuts
Zeta Magnetic Drain Plug
BUD Racing Shifter










KVA_536
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KVA_536 1/3/2019 11:49am
1/3/2019 11:49am
FINALLYYYYYYYY!

Finally was able to get the motor over to TK Motorworks for the "rough draft" on the motor build. Still waiting for some TI parts from France to show up, along with some missing hardware for the CNC Clutch basket from BUD Racing.

Here's a peek at the "rough Draft" and some of the process along the way:









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KVA_536
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KVA_536 1/4/2019 6:56am
1/4/2019 6:56am
SmokinJoe439 wrote:
New oem clutch n throttle cables should be on this list.
Already addressed with new OEM Cables.

Thanks for following
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KVA_536
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KVA_536 1/21/2019 7:31am
1/21/2019 7:31am
Ohhhhh the motor. She came together nicely, all the TI bolts were totally worth it





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smezmx
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smezmx 1/21/2019 9:24am
1/21/2019 9:24am
Nice...looks similar to mine....Wink
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MX Kidd
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MX Kidd 1/21/2019 10:37am
1/21/2019 10:37am
smezmx wrote:
Nice...looks similar to mine....;) [img]https://p.vitalmx.com/photos/forums/2019/01/21/319671/s1200_IMG_5864.jpg[/img]
Nice...looks similar to mine....Wink
Any reason you went with BUD over something else like VHM? Does BUD have increased hp? Very new to this stuff sorry!
smezmx
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smezmx 1/21/2019 10:46am
1/21/2019 10:46am
No i just wanted a red head.....i've got a vhm on another bike because i wanted a gold one.....am i a bad person? Laughing bud racing heads are on par with vhm....they have tuneable domes for different conditions etc
Not much gain over stock but they all look nice....yours does too....
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KVA_536
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KVA_536 1/21/2019 11:06am
1/21/2019 11:06am
MX Kidd wrote:
Any reason you went with BUD over something else like VHM? Does BUD have increased hp? Very new to this stuff sorry!
I found that there are a lot of the VHM heads out there for builds & wanted to go a different route. I work closely with John @ BUD in CA and he has helped with specs and info from BUD France. Have been a fan of the BUD team for some time now watching Marv & Dylan come up and wanted to build a 125 that coulda been a BUD Spec if the team had been on Yamaha instead of Kawi.

And they had a TI kit for the engine, so why the hell not
LS427
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LS427 1/21/2019 11:18am
1/21/2019 11:18am Edited Date/Time 1/21/2019 11:19am
where did you guys find the oil slick colored TI cylinder nuts? ebay?
smezmx
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smezmx 1/21/2019 12:37pm
1/21/2019 12:37pm
Ebay dirt tricks and flo motorsports...









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KVA_536
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KVA_536 2/8/2019 1:08pm
2/8/2019 1:08pm
Frame got some much needed love and attention






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KVA_536
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KVA_536 2/8/2019 1:12pm
2/8/2019 1:12pm
Suspension showed up from SPEED TECHNOLOGIES valved fro SX Futures in INDY


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KVA_536
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KVA_536 2/13/2019 8:52am
2/13/2019 8:52am
Some of the coated stuff starting to trickle in........



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SeaClassExpert 2/15/2019 7:59am
2/15/2019 7:59am
KVA_536 wrote:
[img]https://p.vitalmx.com/photos/forums/2019/02/15/325554/s1200_IMG_1778.jpg[/img]

Will the bolt still fit in the thread if cerakote is baked on or do you typically run a threadchaser down it to clean it out.

Sorry, still very new to cerakote but very curious. Build looks amazing so far.
1
KVA_536
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KVA_536 2/15/2019 8:45am
2/15/2019 8:45am
These are photos are from the coater, but the threads will be cleaned accordingly
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MotoRoss678
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MotoRoss678 2/15/2019 11:00am
2/15/2019 11:00am
KVA_536 wrote:
[img]https://p.vitalmx.com/photos/forums/2019/02/15/325554/s1200_IMG_1778.jpg[/img]

SeaClassExpert wrote:
Will the bolt still fit in the thread if cerakote is baked on or do you typically run a threadchaser down it to clean it out...
Will the bolt still fit in the thread if cerakote is baked on or do you typically run a threadchaser down it to clean it out.

Sorry, still very new to cerakote but very curious. Build looks amazing so far.
From the research I've done on oven cured cerakote the fact that the threads are coated as well will not affect the banjos threading in. Check out the link below to read up on the process...I find it very interesting and useful.

https://www.cerakote.com/resources/files/training/Cerakote_ELITE_H-Seri…


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SeaClassExpert 2/16/2019 11:08am
2/16/2019 11:08am
MotoRoss678 wrote:
From the research I've done on oven cured cerakote the fact that the threads are coated as well will not affect the banjos threading in. Check...
From the research I've done on oven cured cerakote the fact that the threads are coated as well will not affect the banjos threading in. Check out the link below to read up on the process...I find it very interesting and useful.

https://www.cerakote.com/resources/files/training/Cerakote_ELITE_H-Seri…


Very cool Ross, always learning something new.
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KVA_536
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KVA_536 3/4/2019 6:56am
3/4/2019 6:56am
Finally, the final prep has almost come to a conclusion & the build is starting to take shape








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shuggs
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shuggs 3/4/2019 2:12pm
3/4/2019 2:12pm
Love those pegs....
KVA_536
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KVA_536 3/6/2019 7:36am
3/6/2019 7:36am
This week is just getting better and better.....







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Godcho
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Godcho 3/6/2019 9:43am
3/6/2019 9:43am
the finishing work is impressive! I love the appearance of the engine! Wait to see more... Wink

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