Messages

1

General Two Stroke Talk / Finally finished!!!! 2009 ktm 125sx resurrection

« on: August 05, 2013, 05:15:33 PM »

595,
You are going to like that bike. I have a 2009 125 SX (bought last summer new as a leftover). I've kept it stock. I ride MX, trails, enduros on it. For the enduro, I just put handguards on it, taped on the scorecard and rode. It  made every climb that day and scooted past many bigger bikes that had stalled on the faces of hills.

For a 125, it has a monster motor. I think the 09 puts out about 3-4hp more than the current 125SXs.

It's the same motor.  But in 2011, they added linkage which necessitated a curved airbox around the shock. also, at the same time, they changed their japanese ignition supplier to someone else, and it's not as good. (maybe from kokusan to someone else?)  the airbox and the ignition is the 3hp.

2

General Two Stroke Talk / Jerry Robin at Lorettas

« on: August 05, 2013, 05:10:48 PM »

someone needs to put him on a 125 for 2-3 arenacross races to satisfy his "road to supercross", then put him on a 125 for daytona.

not saying he would set the world on fire, but the publicity would be absurd.

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General Two Stroke Talk / Jerry Robin at Lorettas

« on: August 04, 2013, 06:26:14 PM »

Is there anymore of a write up on it anywhere, as far as in the 250 B class was he the only two stroke etc.

11th overall in 250B on the 85 CR.  Salvaged 3 bikes worth of parts to get it on the track.  Not bad, that's potentially 29 250Fs behind him.

A little birdie told me James Stewart himself tried to recruit him to Team Seven, and offered him brand new Suzukis.  He turned it down, however, I really hope he takes the offer after Lorettas.  You can't race an 85 CR at Anaheim 1.

They really jumped through their asses to get that 85 out on the track, and really only did it for the fans. 

4

General Two Stroke Talk / lets just say racer x is a two stroke boss.

« on: February 14, 2013, 08:58:57 PM »

An invisible man in the clouds saved you.





"Someone as intelligent as Jesus would have been an Atheist."

"There are men in the world who want to kill you, me, and themselves for what they believe is the highest ideal."

Glad to hear you made it out of that situation ok.

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General Two Stroke Talk / WE need a ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''08 - ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''10 YZ 250 frame..

« on: February 14, 2013, 02:55:24 PM »

I would need a certificate of origin that matches as well. I need that for my Croom sticker every year. They do check the numbers.

So crazy.

I used to go there 2-3 times a week and pound 20-30 minute motos in the front pit.  Used to be a fun place.  I'm hearing otherwise these days.

6

General Two Stroke Talk / CR250R......of doom. Testing positive for Beastmode

« on: March 04, 2013, 09:15:26 PM »

2T Institute, bullshit?

Here is bullshit.

"You can adjust the servo powervalve in ____ rpm increments."    -2T institute

Show me your Honda RC Valve adjustment tool/software.  Go ahead, I want to see you adjust the engagement of the Honda RC Valve. Where is your "video".  Because if you don't post a video of something, it's not good enough  for 2T Institute. 

You make this forum more and more like vital everytime I check back.  You're a f*cking douche, period.  I don't do this internet shit because of people exactly like yourself. Everything is an argument, everything is a debate.  Everything is bullshit.  You're negative, and negativity is contagious.  Look at the comment columns on yahoo news stories.  its all negative douchebags like yourself.  most forums are the same way.  you put a couple negative people in there, and it starts spreading.  The next thing you know, everyone is the same cynical, sarcastic, negative toolbag.

I have ridden/raced this CR250 for half a season.  and guess what...it has no low end. It's gutless off the bottom. So, don't come in here, tell me the crank case volume is perfect, you can adjust the powervalve blah blah blah based on what you "read" somewhere in some kiwi forum.  Get out there, and race a CR250. Otherwise, shut the f*ck up and keep tapping away at your sperm stained keyboard.


Now, for those of you who give a shit, I have acquired some Kashima coated upper fork legs off an 09 Kawasaki, and DLC coated lowers.  That's the dark, copper coated uppers and black coated lowers.  I figure it will go well with the "RC250" theme.  My seat cover came from Traction MX Seating, he was a pleasure to deal with, and was able to duplicate the seat cover on the RC250M perfectly, but with better more durable, gripper material.  I highly recommend the guy. 43 dollars SHIPPED.  and just as a reminder, I highly DO NOt recommend Eric Gorr, just had to throw that out there. he sucks.

I also  recently found a killer deal on a 97 CR125, last year of the steel frame for the 125 and I am considering going and picking it up. My suspension guy has a et of the 2000 Showa conventional forks from an RM along with the brakes, yokes and a wheel that I could put on that CR125.

 I don't know how much I'll keep up with this thread, as I like to keep my hobbies lighthearted and fun, which is impossible to do around here anymore, apparently.  I'm also toying with the idea of a scalvini pipe on this bike.  they're only about 30 bucks more than ap ro circuit.  I have a fresh DEP on there now, but we'll see. I really want a cone pipe, and the expansion chamber colume on the Scalvini looks much different from the PC and FMF pipes, almost as if he figured out something.

7

General Two Stroke Talk / Official 2009 KTM 125sx bike build

« on: February 06, 2013, 02:58:15 PM »

You're not going to keep up with the finish on your FMF pipe? 

Then why bother with all the powdercoat, cosmetics, and building the thing at all man?  Just ride it and let it rot.

Blowing your bike off with an air compressor, and a light coat of W40 will keep a bike looking new for so long.

Would'nt the WD40 make it oily and slick?

That's right.  Hit everything but your grips and your seat cover.  DRag your brakes on the way down to the starting gate or you're in for a surprise in the first corner.  Trust me.

8

General Two Stroke Talk / Official 2009 KTM 125sx bike build

« on: February 05, 2013, 02:32:46 PM »

You're not going to keep up with the finish on your FMF pipe? 

Then why bother with all the powdercoat, cosmetics, and building the thing at all man?  Just ride it and let it rot.

Blowing your bike off with an air compressor, and a light coat of W40 will keep a bike looking new for so long. 

9

General Two Stroke Talk / CR250R......of doom. Testing positive for Beastmode

« on: February 05, 2013, 02:19:46 PM »

The best motor is the 04+ KTM.  It scared MC into retirement.

The 03+ KX, and 04+ RM are both clones of the YZ 02+ YZ. .  Honda did it's own thing in 02 with the RC valve motor, and like I said, it's got no low end because the crank case volume is too high and the intake on the case reed motor is too short.  It's like a road racing motor, which is no surprise as I am hearing the whole RC valve idea came from the NSR department.

No such thing as too high case volume, servo pv operation is far superior to crank governed, if the  engine has no bottom end the pipe will be the culprit. Fitting a servo power valve control will iron out dips in torque curves in minutes.

How many RC valve CR250s have you owned/built/ridden/raced?

fitting a servo valve means nothing if the actuation point is wrong.

2T Institute, here is a guy who learned it by "doing it".  All of the flaws of the motor that I found were solidified here.  Give it a read, you might learn something.

Its a combination of things, starting at a TMX Mikuni carb with a slide that doesnt seal well, rolling in to a case reed induction that is too short, into a crank case that is too volumuous, into a cylinder head with way too much squish, and a poorly shaped band all together.  PArt of it could be the pipe, which could be why Scalvinis pipe for this bike is so radically different than the FMF and PC.

http://www.thumpertalk.com/topic/639710-diy-cr250-engine-porting/page__hl__%20cr250%20%20self%20%20porting

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General Two Stroke Talk / CR250R......of doom. Testing positive for Beastmode

« on: February 05, 2013, 02:15:34 PM »

mc retired in 02

Incorrect.  He retired in January 2003, on KTM, to get out of his 2 year KTM contract (retirement clause).  He had a gnarly off-season testing crash, the motor was so strong he requested to ride it in stock form, plus, KTM promised him linkage, and never delivered.  put all of that together and he said "fuck it".

11

General Two Stroke Talk / CR250R......of doom. Testing positive for Beastmode

« on: February 05, 2013, 12:33:09 AM »

low end is for trail riding.

oh.

12

General Two Stroke Talk / Official 2009 KTM 125sx bike build

« on: February 04, 2013, 03:15:35 PM »

Oh, I'll have to try the WD40 thing, My pipes stock. I would have to agree if it was a FMF i would'nt touch it, Whats better a FMF combination or a Pro circuit with the 304?

I think FMF's silencers are a little higher quality, and I think FMF uses a little better quality metal on their "factory" finish pipes.  but as far as performance? You'll never notice a difference in the 2.  Strictly quality, FMF. 

Scalvinis are only about 30 dollars more than FMF.

13

General Two Stroke Talk / CR250R......of doom. Testing positive for Beastmode

« on: February 04, 2013, 03:11:47 PM »

The best motor is the 04+ KTM.  It scared MC into retirement.

The 03+ KX, and 04+ RM are both clones of the YZ 02+ YZ. .  Honda did it's own thing in 02 with the RC valve motor, and like I said, it's got no low end because the crank case volume is too high and the intake on the case reed motor is too short.  It's like a road racing motor, which is no surprise as I am hearing the whole RC valve idea came from the NSR department.

14

General Two Stroke Talk / CR250R......of doom. Testing positive for Beastmode

« on: February 04, 2013, 02:50:14 PM »

You have any idea as to what 250 motor was the strongest off the line?

Honda?  97-01 were the best 250 motors they ever made, but the 97-99 and 00-01 chassis sucked.  in 03 they got the chassis right, in 04 they got the forks right, but from 02-07 the motor was weak.  it made 45-46hp like the 97-01 motor, but it made it like a 125.  no bottom, no mid, then a 2,000rpm punch, then it falls on it's face if you don't shift it.  It's hard to even ride the clutch.

15

General Two Stroke Talk / Official 2009 KTM 125sx bike build

« on: February 04, 2013, 02:47:32 PM »

Good god, don't you guys spray your bikes with WD40 after you wash them?

 There is no need for spray paints and all that shit.  Wash your bike, and about every other ride, hit the pipe with an Scotch brite pad.  then spray some WD40 on it before you put it away.  It displaces water and keeps everything from rusting.  Buy the gallon jug of it at Lowes and use an old spray bottle.

It's your bike, do what you want with it, but I would never spray any sort of paint or anything on an FMF Factory finish pipe.