TRX250R.ORG
Workshop => Suspension and Chassis => Topic started by: 08IRS on April 08, 2014, 03:41:46 PM
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Is the bump stop on a OEM rear shock user replaceable or do I need to send the shock off to be serviced.
Thanks,
George
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schmidty_racing is one of our sponsors and I think he may have that.evan is the guys name
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Is the bump stop on a OEM rear shock user replaceable or do I need to send the shock off to be serviced.
Thanks,
George
I have never seen them for sale and could never figure out how to get to it. I do see they are available from the Pro's. Chances are if you need to replace it you need the whole 9 yards. Myself I like the aftermarket setup when I can afford it. That way everything is new and will last the rest of my riding lifetime
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I am working on my front suspension now but don't have the coin to throw at a new rear shock. Working on it but not quite there. I have two rear shocks and considered sending one off to be serviced but I am not sure if there are worth putting the money into or not.
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Yes you can replace the bottom-out bumper, but it requires disassembling the shock I believe.
I actually got mine changed to a softer bumper on my PEP rear, you can notice a pretty big difference when squeezing them. We'll see how it feels when riding
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Any direction on the disassembly?
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Yes you can replace the bottom-out bumper, but it requires disassembling the shock I believe.
I actually got mine changed to a softer bumper on my PEP rear, you can notice a pretty big difference when squeezing them. We'll see how it feels when riding
Tbone is right, you have to dissassemble the shock.
Any direction on the disassembly?
the easiest way to explain it would be for you to watch a youtube video on how to dissassemble. You will have to do a full dissassembly. Let the nitrogen out of the shock, remove the bladder from the reservoir, remove the dust seal and cap, remove the snap ring that holds the shaft assembly on, pull the shaft assembly out, grind the threads off of the top of the shaft (if it has never been revalved before), then remove the shaft nut, then the valve stack and piston, then you can remove and replace the bump stop. It's basically the last step in a complete revalve.
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if your wanting to take a stab at it yourself evan can sell you all the needed replacement parts.
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Here is a good read Vvvvv
http://www.suzukiquadracerhq.com/chassis-suspension/shock-service-rebuild-101-part-1/
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Here is a good read Vvvvv
http://www.suzukiquadracerhq.com/chassis-suspension/shock-service-rebuild-101-part-1/
After reviewing this, I am not sure I have the time to do this right now. Probably better to just send it off. I was hoping there was an easy way to replace the part without tearing the entire shock down. Bummer...
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Its hard to beat Evans prices.
http://www.ebay.com/itm/ATC-350X-TRX-250R-400EX-REAR-SHOCK-REBUILD-SERVICE-CR-Y-/220749788862?pt=Motors_ATV_Parts_Accessories&hash=item3365b676be&vxp=mtr
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if the bumpers are beat out Im sure the shock will need service also.usualy leaking shock oil helps destroy the bumpers
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I have two rear shocks. One is near perfect, no leaks just no bumper, the other is leaking, no bumper and in need of a good service. I may give them a call.
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Its hard to beat Evans prices.
http://www.ebay.com/itm/ATC-350X-TRX-250R-400EX-REAR-SHOCK-REBUILD-SERVICE-CR-Y-/220749788862?pt=Motors_ATV_Parts_Accessories&hash=item3365b676be&vxp=mtr
damn that is reasonable! guess hes getting my 250r shock next month lol
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I have two rear shocks. One is near perfect, no leaks just no bumper, the other is leaking, no bumper and in need of a good service. I may give them a call.
As already said it does have to come apart to change bumpers ,but it is not a hard thing to do . it will need to charged with nitrogen when done .If you want some help just say so
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I think I will tear the one apart that is shot so I can experiment with it. As far as it being refilled with Nitrogen, do you have suggestions on where I could take it to have this done or would I need to buy equipment?
Thanks
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I think I will tear the one apart that is shot so I can experiment with it. As far as it being refilled with Nitrogen, do you have suggestions on where I could take it to have this done or would I need to buy equipment?
Thanks
You would need to buy equipment unless you happen to know a shop with shock equipment or if you had a buddy with a nitrogen tank, you could rig something up.
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Some shops will do it for a fee if that service is available. Evan also sells the equipment for you to do it yourself. I was surprised to see that its pretty affordable. On the other hand and I know many will have different opinions, but I have heard of people using plain old air. Most of us are weekend riders and not sponsored supercross riders so I don't think its 100% nessary if your doing this all yourself.
Like I said others will have a different opinions. If you doing it yourself on a joy ride bike why not? I'll give it a shot one of these days. Worst case I'll perge the air and recharge with the correct gas.
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Air expands with heat,and should not be used.No offence to anyone who thinks otherwise.If you do start work on one of them make sure you release nitrogen pressure first.a lot if tire places are using nitrogen to fill tires with ,but I don't know what pressures they can go up to
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Air expands with heat,and should not be used.No offence to anyone who thinks otherwise.If you do start work on one of them make sure you release nitrogen pressure first.a lot if tire places are using nitrogen to fill tires with ,but I don't know what pressures they can go up to
Agree ^^^^. Don't use air. I also thought of the nitrogen that tire places are using but I doubt they go high enough as vehicle tires only hold up to 65psi tires pressure max and oem shocks need 200psi.
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You will need to completely disassemble the shock to get the bumper replaced.. as stated earlier, when the shaft assembly is out of the shock,you will see where the factory "peened" the shaft nut on . This peening needs to be partialy removed to get the nut off and be able to disassemble. However you must be careful to not remove too much, as the inner part holds the rebound assembly into the shaft center core.. I do sell individual seal kits and parts, as well as nitrogen tools for the DIY guys.. however if you've never done it before, the package price on ebay is hard to beat. Also, one of the extra and unadvertised extra for all trx and ATC 250r guys; is that they also get the lower spring retaining ring,C-clip and bumper-cup powdercoated silver.. I have built up a pile of those parts over the years , and have batches of them done, so for all the "r" guys who have supported us, they get a little extra bonus..Plus we do little extra's that many shops don't. Look at at the break down pics for a rebuild by us on ebay. And yes nitrogen in shocks, not air.. Air contains H2O which is corrosive in a confined space for a prolonged time, and also as states expands like crazy with heat(steam).. so no bueno.. Evan @ SRS