Two Stroke Motocross

Two Stroke Motocross Forum => General Two Stroke Talk => Topic started by: Recovered on April 08, 2012, 03:02:13 PM

Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 03:02:13 PM
Starting a build thread here.  Bike was/is an extremely clapped, neglected 2004 KTM125SX That I intend to bring back to life, and then some.

It literally sat outside in the elements with the jug off the motor.

It will get a complete engine rebuild, by me.  The frame is getting powdercoated clear/raw.  It is staying a true 125cc.  US Chrome will be doing the cylinder replating as the nikasil is worn off the front of the cylinder. 

I'll get some photos up soon.  Half the bike is in the back of my Element in pieces.  The other half is on the floor.  The forks are at Charles' house.

I can honestly say there was not one single positive point about this bike. Both levers are broken. Both tires are bald.  Both sprockets are sawbladed. both fork seals are blown.  all the plastic is dry rotted. The seat is torn. I think the bars are even bent. The airbox cover is missing.  The carb is filthy.  The airfilter is trash.  Both rotors are rusted.  Everything is going to be replaced.  There is a new 520 Oring chain in a box, but there is no masterlink, so I suppose a 50 dollar chain is the only positive thing I have.

Why did I even bother?  Because it was $200 dollars and 45 minutes from my house and it's a KTM.  It's an 04 which means I get the cool backfender/number plate combo and it has the non-progressive PDS shock and good WP forks. 

When I picked the bike up, the guy's son who is about 17 years old says "Yewwer gunna rayyce vet awn uh wun twinny fiiiiiiiiiiive??"

And that quote my friends shall be my motivation.
Title: The 125SX of Doom
Post by: Marco810 on April 08, 2012, 03:11:33 PM
Love a good build thread. Keep us posted
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 03:22:24 PM
Apparently "Daryl the powdercoater" says he has a raw chromoly color that would look better than just putting clear over the chromoly.  So we, the proverbial we, may go with that.  Droppin it off at lunch time, with pics of frame, and maybe of Daryl the Powdercoater, if he isn't looking.
Title: The 125SX of Doom
Post by: Toadmeister00 on April 08, 2012, 05:38:01 PM
Apparently "Daryl the powdercoater" says he has a raw chromoly color that would look better than just putting clear over the chromoly.  So we, the proverbial we, may go with that.  Droppin it off at lunch time, with pics of frame, and maybe of Daryl the Powdercoater, if he isn't looking.

Is that "Daryl the Powdercoater" in Stafford, by chance? I'm looking for someone to do a frame. I'm in Warrenton.
Title: The 125SX of Doom
Post by: gpnewhouse7 on April 08, 2012, 05:42:26 PM
Keep us posted and I don't know if youv already got any colour scheme ideas but blue and silver looks amazing on those old 04 KTMs and a doma pipe is great for topend.
Great bike to do it all to, it will definitely be worth it.

Good luck and I hope to see pics when she's finished.
Title: The 125SX of Doom
Post by: burn1986 on April 08, 2012, 06:11:07 PM
Yeah Premix, we're definitely needin some photos! Congrats, is there any better rebuild than a completely dead bike. It's called "work therapy."
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 06:29:46 PM
Apparently "Daryl the powdercoater" says he has a raw chromoly color that would look better than just putting clear over the chromoly.  So we, the proverbial we, may go with that.  Droppin it off at lunch time, with pics of frame, and maybe of Daryl the Powdercoater, if he isn't looking.

Is that "Darly the Powdercoater" in Stafford, by chance? I'm looking for someone to do a frame. I'm in Warrenton.

DO NOT, I repeat DO NOT go to Daryl in Stafford off exit 133.

Go to ACS.  his name is Nolan.  His cell number is 703-851-5548.  He is behind the old auto auction at the intersection of Rte. 1 and 208 (courthouse rd)

If your frame is already powdered which I am sure it is, leave it alone, he can powder over it and its much cheaper.

Since I am building a semi-works bike to dominate the known universe on, I am having him completely blast it and go clear with it.

I'll have before/after photos this evening.

as far as the color scheme, i dont know.  I would like to do a redbull deal but those are hard to find.  I also thought about buying the white kit for it, and doing a 1986 KTM Danny Magoo Chandler deal.  I'll end up finding whatever graphics I can for it, then just going from there.
Title: The 125SX of Doom
Post by: JM82 on April 08, 2012, 06:34:21 PM
I think you should go with Factory GP team look from Tyla Rattrays bike. That is the one of the coolest 125 ever.



I had a 2002 125SXS with a Doma pipe and that thing was an absolute screamer....

Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 06:37:15 PM
Anyone have one of the KTM optional front fender braces laying around?  I want to have one re-made in dimple died aluminum for that works look.
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 07:19:31 PM
Well boys, I think I found my graphics scheme.



Title: The 125SX of Doom
Post by: gpnewhouse7 on April 08, 2012, 07:26:28 PM
Ye they look pretty badass too, I forgot about those. Though there are quite popular here so you might see a few other bikes that look the sam as yours. Not sure if that's a problem to you or not though but when I built my RM I wanted it to be the only one that looked that way. Sad I know.
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 07:29:33 PM
I've never seen a Jager KTM here.

Jagermeister.  Deer blood and opium  PERFECT for a wide open 125 going against 450s.
Title: The 125SX of Doom
Post by: JM82 on April 08, 2012, 07:32:34 PM
I have those graphics in my 150SX

Title: The 125SX of Doom
Post by: scooter042 on April 08, 2012, 07:42:24 PM
OK. I am starting to get fired up here. I had an 03 125sx and it was the fastest 125 I ever owned. I am also a vet and have had the "look" when I say I am racing it in vet or while pulling up on the line beside a row of 450's. I am finishing up my 03YZ right now. It's gonna be a fun year.

..."Yewwer gunna rayyce vet awn uh wun twinny fiiiiiiiiiiive??"

Most fun you can have on a dirtsikkle.
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 08:12:49 PM
This is so ghetto, and I am almost embarrassed to ask it, but is there a plastic paint that looks good enough to use?  I.E. black? 
Title: The 125SX of Doom
Post by: twosmoke595 on April 08, 2012, 08:15:14 PM
This is so ghetto, and I am almost embarrassed to ask it, but is there a plastic paint that looks good enough to use?  I.E. black? 

a couple of my friends had some plastic painted by a very reputable auto body painter in our area, and it looked good for a little bit, but sooner or later it will start to peel off and look crappy, you'd be better off just buying plastic, look on ebay, there is usually some pretty good cheap used plastic on there
Title: The 125SX of Doom
Post by: Super Trucker on April 08, 2012, 08:25:15 PM
Trust me on this one, send your cylinder to Milenium technologies there the best. I had us chrome screw a cylinder up twice in a row, lost a whole riding season because of there shauty work. The 04 KTM 125 is a fast bike, Doma makes there pipes, shneider orange is an ugly color for a bike, black looks stupid, get white plastic.
Title: The 125SX of Doom
Post by: Super Trucker on April 08, 2012, 08:32:57 PM
This is so ghetto, and I am almost embarrassed to ask it, but is there a plastic paint that looks good enough to use?  I.E. black? 
  Yeah like 595 said painted plastic don,t last. A grey primer  old hotrod look would be cool, I never saw a grey primer bike before. Reflective yellow paint would be unique also ;D.
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 08:36:02 PM
Trust me on this one, send your cylinder to Milenium technologies there the best. I had us chrome screw a cylinder up twice in a row, lost a whole riding season because of there shauty work. The 04 KTM 125 is a fast bike, Doma makes there pipes, shneider orange is an ugly color for a bike, black looks stupid, get white plastic.

Cylinder is already on its way to US Chrome, and I am going to rip those Jager graphics all day long.

I have an FMF pipe and silencer already for it, I am going to shorten the FMF silncer by about 2 inches when I repack it, and probably replace the gold series pipe with a DEP or DOMa factory/raw finish pipe.  

I am focusing on the engine rebuild right now, I want it to be bullet proof and 125ccs because I am going to rev it until my balls fall off.

I'm just buying all new black plastic. fuck it.  this is, after all, a semi-works bike. hahahaha
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 10:07:06 PM
Sweet motor, bro.


Box of bullshit.


Before


Put a Mexican behind the trigger.


Title: The 125SX of Doom
Post by: scotty dog on April 08, 2012, 10:54:32 PM
This is gunna be mad, cant wait to see the finished product, cant ya die ya plastics black like people do with YZ tanks?  :D
Title: The 125SX of Doom
Post by: Recovered on April 08, 2012, 11:02:42 PM
I'm just going to buy all new plastics.

I am still contemplating the wheel rebuild.  to put new spokes in, that is about 70 per wheel.  powdercoat is 100 bucks for both wheels.  so, we are at 240.  add in new bearings.

A new set of black wheels can be had for 495 dollars shipped on ebay, which includes new bearings and hard anodized wheel spacers.  I think I am just going to go that route, and have a spare set of wheels. 

Just ordered a brand new Wiseco bottom end kit to include a whole new crank, bearings and seals.  Splitting the cases when I get home from teh gym.  Also ordered a full hardware kit for the bike. 

Does anyone know where I can get zinc plating done?  I'd like to just send off all my hardware, the brake rotors and some other things to get zinc'd.  Don't know where though.
Title: The 125SX of Doom
Post by: Charles Owens on April 09, 2012, 03:02:49 AM
I'm pretty sure U.S. Chrome does all kinds of plating. Zinc, chrome, nickel, etc.
Title: The 125SX of Doom
Post by: factoryX on April 09, 2012, 05:24:09 AM
Just a head up:

Title: The 125SX of Doom
Post by: Shawn36 on April 09, 2012, 12:12:55 PM
I would have recommended anything OEM over Weisco cranks.  A lot of guys with CRs have horror stories of getting 10 to 20 hours in on Weisco eBay rebuild kits before they explode again. 
Title: The 125SX of Doom
Post by: Recovered on April 09, 2012, 01:03:53 PM
The fact of the matter is, I could find an example of ANY product in ANY industry failing.  Whether it be a Dodge transmission, a Pepsi can, a Firestone tire, a Maytag washing machine, or a Wiseco crank.

I could find an OEM crank shitting the bed for each of the big 5 manufacturers.  I could find a Hotrods destroying itself too.

There's no point.  If it breaks, it breaks.  It's a dirtbike. That's what they do.
Title: The 125SX of Doom
Post by: gpnewhouse7 on April 09, 2012, 01:16:54 PM
The fact of the matter is, I could find an example of ANY product in ANY industry failing.  Whether it be a Dodge transmission, a Pepsi can, a Firestone tire, a Maytag washing machine, or a Wiseco crank.

I could find an OEM crank shitting the bed for each of the big 5 manufacturers.  I could find a Hotrods destroying itself too.

There's no point.  If it breaks, it breaks.  It's a dirtbike. That's what they do.

Good point
Title: The 125SX of Doom
Post by: Marco810 on April 09, 2012, 02:40:36 PM
Wiseco are hit and miss, like any Chinese product. Ive run them before without problems though
Title: The 125SX of Doom
Post by: Recovered on April 09, 2012, 03:37:28 PM
Just got off the phone with Eric Gorr.  

US Chrome was going to just replate the cylinder for 230 bucks. bare cylinder only.

Eric is going to take the whole jug/head/powervalves, rebuild the PV, weld/bore/plate the cylinder, port it, re-set the squish, and put in a wiseco piston kit plus gasket kit for 410 bucks.

So, I am sending it to Eric.  Much better deal, and it'll end up running a lot better.  It's staying a true 125 though.  I told him I want to holeshot 450s with it, we laughed.  So it's going to get some port work.

Using deductive logic ( a lost art)..   Eric Gorr is in WI.  US Chrome is in WI.  Eric Gorr, i highly doubt, has plating capabilities in his little shop.  So it would be safe to say that Gorr probably has a jobber account with US Chrome.  So in reality there is no "Eric vs. US Chrome" because it is the same thing, so, for an extra 180 dollars you get a 150 dollar top end kit.  That leaves 30 dollars.  So, for that 30 dollars you get, power valves rebuilt, cylinder ported, and squish set, and you dont have to disassemble the head to mail it.  On top of that, when it comes back, it is ready to install/slide over the piston and on to the motor.

I say you can not beat that.
Title: The 125SX of Doom
Post by: Super Trucker on April 09, 2012, 06:13:52 PM
Gorr might use Milenium technologies,there in Plymouth Wi. close to Road America road racing track. One thing they do differently is they ask ya, what piston you use. Because they spec the cylinder to that piston, for tight clearances, there plating process and materials are totally different than us chrome. In 09 when I used us chrome, something was going on there like a new guy or a experimental process, the cylinder was even shaped right, it had thicker plating in diff areas. They must have fixed what was going on, other wize they would be out of buisness.
Title: The 125SX of Doom
Post by: twosmoke595 on April 09, 2012, 07:34:52 PM
i used millenium tech for the cylinder on our yz250
Title: The 125SX of Doom
Post by: Premixed on April 09, 2012, 07:59:52 PM
Gorr might use Milenium technologies,there in Plymouth Wi. close to Road America road racing track. One thing they do differently is they ask ya, what piston you use. Because they spec the cylinder to that piston, for tight clearances, there plating process and materials are totally different than us chrome. In 09 when I used us chrome, something was going on there like a new guy or a experimental process, the cylinder was even shaped right, it had thicker plating in diff areas. They must have fixed what was going on, other wize they would be out of buisness.

Ok, US Chrome NOW literally makes you put the piston in the box, so yes, they spec the cylinder to wall clearance.  Cars are no different.  Certain pistons, depending on whether they are cast or forged, have difference clearances.  I'm using aq 54mm wiseco pro-lite.

However, I asked the guy at US Chrome today about Eric.  Said he has not talked to him in 3 years.  So, he may use milenium after all.
Title: The 125SX of Doom
Post by: Premixed on April 09, 2012, 09:20:06 PM
This dude's pretty loose.

http://www.youtube.com/watch?feature=player_embedded&v=fXth5SVSurc#!
Title: The 125SX of Doom
Post by: Premixed on April 09, 2012, 10:22:44 PM
Ok, here is the head, going in the box for Eric Gorr.  I know for a fact he uses millenium now.  I saw some millenium boxes in his website.  Charles, I found those motor mounts, and one of them is cracked.  



Here is the frame, completely blasted, raw metal.  It's getting cleared now.  Picking it up on Friday.



and here is a shirt I found that I had made to wear when I am in the Philippines and everyone is trying to get some of that white man's money.  I rip this shirt daily there.


Title: The 125SX of Doom
Post by: Super Trucker on April 09, 2012, 11:01:53 PM
Ok that,s good, Mil. tech. has a chick with a hot voice, she works the tech. phone line if I remember right. Nothing is hotter than a sexy chick talking about opening up ports  ;D and stuff. Hey you ever use the wiseco gp piston, it has a thicker dome, center balanced,no holes in the piston it,s the high performance model, holds up very well. They cost more tho, 54mm is 129.99 , 56mm 152.99. I,ve been on the phone all day, because 1 of my incissions from surgery is infected, the 1 over the funny bone.
Title: The 125SX of Doom
Post by: Premixed on April 09, 2012, 11:10:22 PM
I'll call Eric and ask him if he'll use the GP one.  I'll see what he says.

I'm interested to see  what he'll do to the ports.  Told him I wanted it to stay 125, but rip.  And it's an MX bike, so all this talk about "good low end yada yada" is out the window, because if you are under 8,000rpms on a 125, you're doing something wrong, or you're in the pits.  Take your pick.
Title: The 125SX of Doom
Post by: Premixed on April 10, 2012, 01:10:11 AM

Called Eric.  He is using the GP piston, no extra charge.  ;D
Title: The 125SX of Doom
Post by: Premixed on April 10, 2012, 09:56:44 PM
Cylinder head is off to Gorr.


Game on.
Title: The 125SX of Doom
Post by: twosmoke595 on April 10, 2012, 10:22:41 PM
sweet man keep up updated!!
Title: The 125SX of Doom
Post by: 2T Institute on April 10, 2012, 10:23:42 PM
Will he fix the power valve?  It's quite easy to get usable power from 7000
Title: The 125SX of Doom
Post by: scotty dog on April 10, 2012, 11:10:26 PM
comin along nicely........
Title: The 125SX of Doom
Post by: Premixed on April 10, 2012, 11:36:01 PM
Will he fix the power valve?  It's quite easy to get usable power from 7000

I told him exactly what I wanted, and I believe he will deliver.  I wasn't aware that they needed fixing though.  By Sunday I hope to have the bottom end built, frame back from powdercoat, swing arm cleaned up and put back into the frame, shock re-assembled, subframe on it.  Maybe even forks rebuilt, I don't know.  Charles is going to help me out with that.
Title: The 125SX of Doom
Post by: Charles Owens on April 11, 2012, 12:30:57 AM
We'll get it done!
Title: The 125SX of Doom
Post by: MetalMike1982 on April 11, 2012, 12:45:17 AM
We'll get it done!


Thats what I'm sayin   ;D :P ;D
Title: The 125SX of Doom
Post by: 2T Institute on April 11, 2012, 11:07:26 AM
Will he fix the power valve?  It's quite easy to get usable power from 7000

 I wasn't aware that they needed fixing though. 

The PV action is very poor KTM should have never made it that way.