Question about Yamaha YZ 125 Motorcycles

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1976 Yamaha YZ 125 X how to replace the front fork seals

I have a 1976 yz 125 x. I would like to know how to pull the forks apart to replace seals. They are the air over oil forks. @

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  • Yamaha Master
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Hi, John for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere $10 you can download another one.
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vintage yamaha motorcycle fork seal replacement
1976 Yamaha YZ125X factory repair service shop manual on CD eBay $10
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Posted on Sep 02, 2018

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6 Suggested Answers

6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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SOURCE: oil amount in forks

Check the service manual I sent you. All sorts of good information in it.

Again, please rate this answer. > four diamonds would be nice.

Posted on Apr 06, 2009

  • 3567 Answers

SOURCE: 2002 kx 125 fork oil level

3.5 inches to 5 inches from the top of the fork with the cap removed.

Posted on May 03, 2009

  • 677 Answers

SOURCE: front fork leaking oil from bottom of the seal.

Before you take it to the shop try this.Get some camera film,Cut the notched edge of it and trim the top to an angle of 45 deg..Slide this up into the fork seal and working it up and down,slide it all the way around the seal.When you get the feel of it,you can feel tiny bits of grit.This will clean the grit out 99% of the time.I always keep a piece of film in the toolbox.

Posted on Jul 16, 2009

  • 1 Answer

SOURCE: YZ 250 F 2007 Fork oil level

how do i check my oil level on my yz 250

Posted on Oct 22, 2009

mxtras
  • 194 Answers

SOURCE: What are the specs for fork oil in a 99 YZ 125

Use a good quality 5Wt suspension oil (or 7Wt if you want more dampening but this will make it a little more stiff through the small stuff). With the springs removed, fill the forks to the top, cycle the damper rod up and down until it has consistant and firm resistance, top the fluid off to the top, lift the outer tube up about 6" then set it back down, top off, then let it sit until you see no more bubbles. Stroke the damper rod again to ensure there is no air and then **** out fluid until your level is between 110 and 150MM in each tube. Make sure each tube is filled to the same level. One quart per fork is enough to do the job but you might need three quarts to have both filled prior to sucking the excess back out. I usually start with three bottles.

For a firmer feel, use more oil (110MM). For a softer feel, use less fluid (150MM). This is measured from the top of each tube to the level of the oil. Just use a piece of clear tubing and an irrigation syringe - you can get one from a local animal vet. Just mark the tubing with a sharpie at the level you desire.

My standard setting was 135MM from the top using 7Wt oil. I am 160lbs and a mid pack A class rider using essentially stock valving with stock springs.

Posted on Jan 25, 2010

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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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