MUST have YZ250 mods? 13' in particular

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1/4/2016 1:05 PM

Hey peeps!

So I'm 5'10" and 160lbs w/ all my gear on and ride tracks/trail/wherever...

My 2013 YZ250 is BONE stock and the bike is amazingly FUN to ride!

Suspension is great just a little bit stiff for me out of the box and I will most likely get a valve job done if needed.

What mods do you think are necessary for your YZ250's out there? Which made a difference and how much?

Thanks!

SP

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instagram: @ginger969

1/4/2016 1:12 PM

I have a 2013. Send the cylinder and head to Roth Racing for porting and head mod. You will be amazed at the eye-watering speed Mr. Roth can provide. Best money I ever spent on an engine mod. As a bonus, he's in Northern California, so not too far from you.

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1/4/2016 1:15 PM

Harry Backmon wrote:

I have a 2013. Send the cylinder and head to Roth Racing for porting and head mod. You will be amazed at the eye-watering ...more

I guess I should prob edit haha

In regards to power I don't need or want more power, but if anything maybe smooth out the bottom delivery and maybe stretch the power out a bit..With my weight and speed the YZ def has enough balls stock for my skinny self lol

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instagram: @ginger969

1/4/2016 1:18 PM

Harry Backmon wrote:

I have a 2013. Send the cylinder and head to Roth Racing for porting and head mod. You will be amazed at the eye-watering ...more

ginger969 wrote:

I guess I should prob edit haha

In regards to power I don't need or want more power, but if anything maybe smooth out the ...more

In that case, put a flywheel weight on that bad boy.

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1/4/2016 1:23 PM

Harry Backmon wrote:

I have a 2013. Send the cylinder and head to Roth Racing for porting and head mod. You will be amazed at the eye-watering ...more

If you're gonna port it you might wanna get the softer PV spring or else you may have a dip in your powerband.

Its a great bike, just add a flywheelweight and right jetting this bike is plenty good. Some are gonna say v-force or rad valves are a must but to me they didnt do anything.

Spend the rest of your money on tires and gas and your gonna have fun!

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1/4/2016 1:29 PM

For mx. Just suspension revalve, flywheel weight good tire and handlebars.

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1/4/2016 1:31 PM

coastlinecascott wrote:

For mx. Just suspension revalve, flywheel weight good tire and handlebars.

cool! I've seen quite a few people adding funky looking riser setups to the clamps? Is there a reason for this or just preference?

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instagram: @ginger969

1/4/2016 1:32 PM

Also - Anyone know the stock spring rates? Are they setup too stiff for 160lb rider?

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instagram: @ginger969

1/4/2016 1:50 PM

I had the exact same bike. The best modification I did to it was selling it and getting a 250F...True Story.

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Most excellent

1/4/2016 1:55 PM

CaptainRon126 wrote:

I had the exact same bike. The best modification I did to it was selling it and getting a 250F...True Story.

haha i hear ya! I went down that road and I truly enjoy the 2 stroke fun and flair lol i do LOVE the yz250f tho, they're amazing

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instagram: @ginger969

1/4/2016 1:56 PM
Edited Date/Time: 1/4/2016 2:00 PM

Aftermarket triple clamps offset 22 or 22.5mm. Seems to be the hot setup on the YZ's to get them to turn better. However, it is only worth it if you have tried everything you can with the stock setup first (fork height/sag/bar position).

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1/4/2016 2:00 PM

Harry Backmon wrote:

I have a 2013. Send the cylinder and head to Roth Racing for porting and head mod. You will be amazed at the eye-watering ...more

ginger969 wrote:

I guess I should prob edit haha

In regards to power I don't need or want more power, but if anything maybe smooth out the ...more

Retard the timing, #8 slide, re-jet for your conditions, +1 on the rear sprocket, flywheel weight if you like that sort of thing. I have a 13oz. on mine, used only for moto but I am 50+ lol.

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1/4/2016 2:00 PM

I have an '06, which is remarkably similar to that bike. When I bought it, I felt that a 250 was too much power for me, and I planned to drop a tooth on the rear to make the gearing a little taller. This would make the hit a little less abrupt, but not much. You may want to try that, or do as someone else mentioned and get a flywheel weight.

The suspension is awesome, even stock. I'd work on getting the adjusters dialed in first if I were you. I think the spring rates should be spot-on for your weight. Adjust the sag to 100mm and then see if you get any free sag - there should be about 1 to 1.5 inches with the bike off the stand (no rider) once you set the race sag.

Everything else on that bike is pretty solid. I did an oversize Braking rotor on mine, and I've done braided brake lines before for more stopping power; just be sure you know how to use that brake before making this mod.

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Braaapin' aint easy.

1/4/2016 2:01 PM

Nevermind... thought you were rockin' a smoker. Haha

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1/4/2016 2:08 PM

Falcon wrote:

I have an '06, which is remarkably similar to that bike. When I bought it, I felt that a 250 was too much power for me, and I ...more

I def need to set my sag first haha I'll start there and do the clicks back to stock, any suggestions on the flywheel weights? GYTR? Steahly?

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instagram: @ginger969

1/4/2016 2:47 PM

Harry Backmon wrote:

I have a 2013. Send the cylinder and head to Roth Racing for porting and head mod. You will be amazed at the eye-watering ...more

ginger969 wrote:

I guess I should prob edit haha

In regards to power I don't need or want more power, but if anything maybe smooth out the ...more

Put a Pro Circuit 304 shorty silencer on it. I have a 13 also and this gave it more top end.

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1/4/2016 4:28 PM

Since YZ people are reading this, I'm building an 03 with a floppy kickstarter. Is there anything better than the stock 2 stroke one. ie:250f one?

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1/4/2016 5:11 PM

mxracer966 wrote:

Put a Pro Circuit 304 shorty silencer on it. I have a 13 also and this gave it more top end.

Putting a shorty on, as far as I know, would give the opposite effect that you experienced.
Usually a shorty will give you more bottom to mid, with a shorter power band.

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"Nothing happens until something moves"

1/4/2016 6:20 PM

RandyS wrote:

Since YZ people are reading this, I'm building an 03 with a floppy kickstarter. Is there anything better than the stock 2 ...more

Pretty sure 2004-2011 WR450F or 2004-2009 YZ450F kick starter will work, they're a bit beefier.

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21.5 350 XC-F
96' XR600r

1/4/2016 6:27 PM

RandyS wrote:

Since YZ people are reading this, I'm building an 03 with a floppy kickstarter. Is there anything better than the stock 2 ...more

Hcallz5 wrote:

Pretty sure 2004-2011 WR450F or 2004-2009 YZ450F kick starter will work, they're a bit beefier.

Got any pictures? I would love for the kicker to go far under the peg like the 4 strokes.

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1/4/2016 6:34 PM

+1 for the flywheel weight!

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Follow or donate to my girlfriend's spinal cord injury recovery efforts at Yvonne's Path Through Paralysis

1/4/2016 7:05 PM

Check the squish, that is likely the best bang for the buck.

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1/4/2016 8:24 PM
Edited Date/Time: 1/4/2016 8:25 PM

RandyS wrote:

Since YZ people are reading this, I'm building an 03 with a floppy kickstarter. Is there anything better than the stock 2 ...more

Hcallz5 wrote:

Pretty sure 2004-2011 WR450F or 2004-2009 YZ450F kick starter will work, they're a bit beefier.

mb wrote:

Got any pictures? I would love for the kicker to go far under the peg like the 4 strokes.

I don't have any pics sorry, I'm just relaying some info I saw on thumpertalk.

I did get the head mod done on mine and the difference is very noticeable, bike runs much more crisp.

Before and After pics: http://imgur.com/a/YvPx3

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21.5 350 XC-F
96' XR600r

1/4/2016 8:51 PM

Go ride that son-bitch and quit worrying about "must haves"

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1/4/2016 8:59 PM

Haha I would for sure but it's been about 10 degrees this past month lol

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instagram: @ginger969

1/4/2016 9:23 PM
Edited Date/Time: 1/4/2016 9:25 PM

Vforce 3. PC pipe r304 shorty silencer. Ufo restyled kit.

And that floppy kicker....just buy a new spring and bearing. $2 worth of parts. Will tighten it right up.

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GP740
Since 1987

1/4/2016 9:34 PM

ginger969 wrote:

I guess I should prob edit haha

In regards to power I don't need or want more power, but if anything maybe smooth out the ...more

mxracer966 wrote:

Put a Pro Circuit 304 shorty silencer on it. I have a 13 also and this gave it more top end.

tempura wrote:

Putting a shorty on, as far as I know, would give the opposite effect that you experienced.
Usually a shorty will give you ...more

Ran it back to back with the stock silencer on the same day and it pulled longer for me.

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1/4/2016 9:35 PM

stone881 wrote:

Check the squish, that is likely the best bang for the buck.

Boom

Flywheel weights aren't for everyone

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Tomac and/or Anderson for 2020.....

1/4/2016 9:36 PM

Just put on the 16' plastics tonight Photo

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instagram: @ginger969

1/4/2016 10:36 PM
Edited Date/Time: 1/4/2016 10:37 PM

ginger969 wrote:

Just put on the 16' plastics tonight Photo

Looks good, I'll be putting 16 plastics on my 08 125. Did the 16 fork guards fit ok?

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