Question about 2001 Yamaha WR 426 F

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Front forks will not seal - 2001 Yamaha WR 426 F

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Dissassemble forks and replace fork seals.(and oil) becareful forks are under a lot of spring pressue. use a workbench vise to hold fork tubes. you will need the manual for this. plus you will need to know the "proper" amount of fluid to put back into the forks.

Posted on Oct 05, 2009

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HOW DO I CHANGE THE FORK SEALS ON MY 1983 HONDA VT500C


cOULD LEAKING FORK SEALS CAUSE FRONT BRAKES TO FOUL? -- YES
You shuld get a manual, you must check the surface of the fork, if there are scratches, you will destroy a new seal.

Mar 05, 2013 | 1985 Honda VT 500 C Shadow

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Keep having leaking fork seals.have replaced seals and oil after every ride lately.(4)have tried two brands of seals last time disasembled whole of forks cleaned every part,shims everything and had...


G'day. A couple of suggestions-
Damage to the fork slider-chips or dings.
Too much oil in the fork on re-assembly can cause the seal to go.
Worn or loose fork bushes will flog the seal prematurely.
When you transport the bike-if you don't use a seal saver can pop the seals.

So let me help with these.

Be sure that the fork slider is not scored,dinged or damaged on th surface.

A good double check of the oil quantity is to ensure that when you have re-filled the tube with oil & primed it(worked the air out of it), the oil level should be 100 to 110 mm from the top of the leg to the oil with the fork fully compressed. If the level is less than this-drop it to 100mm.

To check the fork bushes-try pull on the front forks front to back(wobble) & feel for looseness in the bushes.

And finally-When you transport the bike-put a chock(I use an empty 5ltr oil container-but you can buy propper chocks from the bike shop) in-between the forks at top of the front wheel .
Now when you pull the front end down it will stop on the chock & stop the front forks being under excessive compression for extended periods-so it saves the fork springs from sacking out too.
I hope this proves helpfull.
Kind regards Andrew Porrelli

May 20, 2011 | Sherco 5.1i Motorcycles

1 Answer

If feels like a pogo stick sometimes and also wants the front end to wash out too and on the front forks i have a oil leak


Your front fork seal are bad and need to be replaced.
When you loose fork oil, your loosing suspension dampening and only riding on the springs.(POGO)

Replace both front fork seals and dust caps, and put same amount of fork fluid in both forks.

I bought my seals and caps for $30 on ebay, and then took my forks off my bike and took them to a shop and they charged me $75 to do the job.

You can take them the whole bike and they will charge $100 - $150 including parts to do the job.

Dec 12, 2010 | Yamaha YZ 250 Motorcycles

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My front fork seals need replacing on my 2005 model TE450, i don't know the specifications, and exactly how much oil to use in each fork


forks need to be removed,and disasemble,and cleaned,new fork seals,reasembleb fit new seals, refit damping cartridge,fill fork with 5w fork oil upto 120mm from top,refit spring, refit fork cap

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Replacing the front seal- located on the fork.


To replace the fork seal you must open the top of the fork and remove the spring. Then drop the fork tube out of the clamp. Once the fork tube is removed replacing the seal is simply pulling the old one off and putting the new one on. You will need to remove your front wheel.

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Front fork seals need replacing Honda vigor FX650


hi non usd forks are ok thers a allen key bolt at the bottom of the fork leg would be wish to change the fork guilds too thr fork seals can be prized out with a screwdirver carfully

Jun 24, 2009 | 2000 Honda Vigor FX 650

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Front fork leaking oil from bottom of the seal.


change the oil seals and oil in the fork,and avoid wheelies on the bike and off road biking 

May 17, 2009 | 2004 Honda CRF 250 R

1 Answer

Front fork seal is leaking


Yep, drain the fork oil, raise the front wheel in the air, remove the front wheel and axle. The nut to remove the lower leg is at the bottom, hidden by the axle. If it still leaks after seal replacement your fork tubes and lower leg sliders are worn out. Reassemble and remove the top fork cap. Pour in the correct cc of fork oil and ride.

Apr 14, 2009 | Harley Davidson FLHTCUI Electra Glide...

1 Answer

How do i dismantle front forks to replace the oil seals


You just needed to.... remove front wheel, support bike on something, undo retaining bolts on forks, tap out fork legs from the top, using a soft mallet. Take out fork seals with a seal pick, (halfords) Replace old seal with new seals, in reverse order) sliding over the fork leg, tapping into place. Then put replace forks etc in reverse order (from dissassembly). Hope this helps

Feb 21, 2009 | 1992 Honda CB 750F2 Seven Fifty

2 Answers

Steering shakes very bad,from 55mph down to 20mph. slowing down


Yes the leak is causing uneven pressure on the front of the bike! The pressure in the left fork is greater then the right fork and will cause shaking of the front end!
Replacing seals and oil to the right fork will fix the shaking!
Hope this helps!

Feb 12, 2009 | 2003 kawasaki ZX-12R

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