Question about 2003 Yamaha YZ 250

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Yamaha yz250 suspension settings

My bike bucked me off and i nearly broke a collar bone was wondering how to set the suspension up. i am a short dude at 162cm and light as like about 59 - 60 kgs. i have figured out the ride hieght but dont know which is damping or rebound screws and what to set them at. any help would be great

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  • Anonymous Jan 29, 2009

    how much oil do i need to have in my lower forks on a yz 250

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There is too much involved to include everything, but I can describe to you what everything does.

You have compression dampening which slows the rate at which the shock or forks can compress. Then you have rebound dampening which slows the rate at which the shock or forks can extend.

The compression adjuster on the rear shock is toward the top, sticking out sideways where the resivoir mounts to the side of the shock. The rebound adjuster can be seen below the swing arm on the side of the shock.

The compression adjusters on the front forks can be seen from the top. (its the one in the center, the other is an air bleed) The rebound adjuster is in the center of the lower fork leg, and can be seen from below the fork.



The settings are measured in the number of "clicks" from seated. More clicks from seated will be softer, and less clicks from seated will be stiffer. The best thing to do is to see where you are now and adjusting from there. I like to write them down as I go. Turn the adjuster clockwise untill it stops and take note of the number of clicks. DO NOT FORCE IT! You should also check your service manual and take note of the standard setting, and also take note of the maximum number of clicks you can go from seated. You dont want to screw the adjusters out farther than the max, shock damage can result.

You might try changing to the standard settings and try adjusting from there. If the bike doesnt ride at least moderately decent at the standard settings, your shock and/or forks may need a rebuild.


Generally speaking more compression dampening in the rear will result in less bottoming but a harsher ride. Less would result in the oppisite.

More rebound dampening in the rear will result in too slow of extension and packing up which will make the bike swap in the whoops, but it will not tend to buck you or throw you into a nose dive over a jump. Less would result in the oppisite.

In the front, more compression dampening will be about the same situation as described above with the shock.

More rebound dampening in the front forks can tend to take pressure off of the front wheel in corners causing washout, but too little can make the bike want to loop out over jumps.

Posted on Nov 21, 2008

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Rebound red, compression blue, the bike shouldn't come up fast but also not slow enough that it packs up . If you're unsure find a buddy that knows his shiznit and ask him

Posted on Mar 04, 2015

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Suspension is the most important part of your bike set up. With your height and weight I can guarantee you will need to respring that bike. But for now you could try this to help you out.
Set the rear sag at 115mm. Turn the high speed dampening all the way counter clockwise.(high speed dampening is on your rear shock on the side of the reservoir, the big nut looking adjustment)
Adjust the rear compression to 16 clicks out (this adjustment is in the middle of the high speed adjuster)
Adjust your rear rebound to 16 clicks out also ( This adjustment is on the left side of the lower portion of the shock below the swing arm)
On the front I would adjust the compression to 16 clicks out. ( this is the screw on the top of the fork tube)
And your front rebound to 13 clicks out ( this adjustmen is on the very bottom of your front fork tube facing the ground.

Hope this helps

Posted on Sep 13, 2014

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