Question about 2003 Yamaha YZ 125

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Rear shock rebuilt bikebandit

Mono shock rebuild

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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
http://www.smartperformanceinc.com/YZWRSHOCKREBUILD.htm
yz 250f rear shock rebuild pt 1
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Posted on Jul 17, 2016

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Posted on Jan 02, 2017

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mxtras
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SOURCE: yz125 rear shock amount of oil on

The volume is less than about 1/2 quart - it's usually not measured going in since you fill the shock completely - there's no need to measure. Some guys assemble the entire shock, then fill with oil and cycle the shaft, then install the bladder cap last. My method is to install the shaft and seal head and the bladder, then put about 2 PSI in the bladder, then bleed through the compression cap. My method is a bit more complicated to explain, but it's effective at eliminating ALL the air from the oil and it keeps the bladder from being installed in a collapsed state.

As far as the nitrogen charge - 145PSI is stock. 130-160PSI is typical.

Posted on May 04, 2010

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1 Answer

Slight trace of oil at the bottom of shock


Front fork or rear shock ? Forks can be rebuilt with new sale,bushes and oil some rear shocks can be rebuilt but usually only good makes like white power and Ohlins.

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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Apr 24, 2012 | 2003 Yamaha YZ 450 F

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Fluid leaking from front shocks


Some units can be rebuilt with new seals and others you replace the whole shock. On the ones that can be rebuilt you may need other parts other than the seals like cleaner and new fork ( shock oil. Your dealer can give you a eatimate on the phone or you can look at website sales companies like bikebandit.com or cheapcycleparts.com and look at the breakdown of your machine to see what parts are being sold and how much they cost. Replaceing shocks is one thing and rebuilding them is another. if you've never built a motorcycle or car sturt before this is not a job to teach yourself from a book. Making mistakes can cause the bike to drive badly and crash. Have somone who's done this kind of work before help you, or hire the work done. Make sure the rebuilt or replaced fork works smoothly and what ever you do to one side do it the same way to the other. It might work OK at low speeds and surprise you at high speed and resulting in a crash. Be carful or find a pro to help you or do it for you.

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1 Answer

I have a 1993 honda goldwing. When i try to pressure up the rear suspension, I hear the air pump working, but the suspension pressure does not increase. can you help me?


You either have a leaking air line , but more likely you have blown a rear shock seal. You can replace the seal yourself. The seals will cost about about $20 per shock and $7 for a bottle of rear shock oil. http://www.bikebandit.com/houseofmotorcycles/1993-honda-gl1500a-gold-wing-aspencade/o/m2359#sch24899

May 10, 2011 | 1993 Honda GL 1500 Aspencade Gold Wing

1 Answer

I have a 1983 1100 aspencade and oil is leaking from one rear air shock. **can they be rebuilt?** I found an oil seal and o-rings at bikebandit.com. if so can i use standard hydrolic oil to fill shock


Yes , the oil seal is available from Honda. If too much air pressure is put into the shock it is not uncommon for the seal to pop. A 5wt or 10wt shock oil should work just fine. Consider changing the oil in the other shock also.

May 08, 2011 | 1983 Honda GL 1100 Aspencade Gold Wing

1 Answer

Kx250 rear shock is out of oil how do i add oil to it


If the bike is real bouncy with no dampining you need to have shock rebuilt you cant just add oil to fix.Most rear mono shocks have a little bottle of nitrogen gas on side of shock.When shock seals go bad the oil and gas leaks out. Most times it is cheaper to find shop to rebuild shock then buying new one.Mono shocks can run anywhere from 250.00 to 500.00$.you can get rebuilt for about 100.00 to 150.00$ depending on parts needed.

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Can a1975 Yamaha DT250 rear shocks be rebuilt?


Hi, Thornie968 no but they can have their springs and eyelets replaced for more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Feb 15, 2011 | 1974 Yamaha DT 360

1 Answer

My rear suspension has suddenly lost its spring


Thanks for contacting FixYa. I was reviewing some of the older un-answered questions trying to ensure your issue has been resolved.

Check for the obvious things first. If it happened suddenly maybe you lost a bolt or a pin in the linkage and the mono-shock is not connected. Secondly confirm that the shock shaft has not broken. This being said, if all confirms OK then you will have to remove your shock and take it in to the dealer for rebuild. You may have blown out the seals. There are some 2nd party services on line like "White Power, that may be less expensive.

TF

Nov 27, 2010 | 2005 KTM SX 250

1 Answer

Replace or repair shocks on a 1971 Honda cb100 motorcycle


they could be rebuilt with today,s technology but the cost and parts would make them very expensive, use the 125 set you mention..

Apr 04, 2010 | 1971 Honda CB 100

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