Agility 125 fork squishy sound

[jesionowski]

My 2008/09 125 Agility make a swishy liquid sound when full front brake is applied and I push down on the front, like would happen in a moving stop.

I went to the dealer saturday and tried to get the same thing to happen on the 3 Agility 125's they had on the floor.  They felt tight and didnt make any sound.

A guy a work said it sounded like a fork seal failure.

The manual and Kymco parts on line just show the whole fork assembly for $91.  What if its just a small part that I need to replace.

I am going to ride it for a little bit longer because I dont think I am damaging anything.


Anybody have a similar issue. I need to get better instruction on how to fix this.   Fork seals are non warranty wear item.



F

[Shaka]

Your seals should be fine if it is not leaking any oil.  It sounds like cavitation (air trapped in the oil).  Changing the oil should take care of it!  The oil breaks down over time as well as becomes contaminated with dirt and water.  This allows the oil to foam up when cycled and suspend the trapped air inside.  This is that squishy sound.  Just pull the fork apart and clean everything with rubbing alcohol and reassemble with the recommended amount and weight of oil.  Make sure you use fork oil, it has anti-foaming additives as well as won't deteriorate the seals!

[jesionowski]

Absolutely no oil leaking. Just the squishy noise. and the fact it isnt as stiff as the showroom models . Is fork oil available at autozone or walmart or do I have to pay 3x at a motorcycle store.

So whats involved.

Brake comes off
Speed o cables off
Wheel off  the forks come off.  Take them apart. How much oil goes back in. The manual doesnt say and actual says use engine oil.

Also can I hold off on this for a month or so.  I just use the thing to much to have it down for a while if things go sideways? 1700km since March.

thanks for you help.

Tad

[Shaka]

I'm not certain of the details of your specific fork.  You may have to talk to the dealer, or contact kymco.  On my zx50, it calls for 61cc of 8 weight fork oil.  Yours probably calls for the same oil, the volume may be different though.  I would definately use fork oil and not motor oil!  I have rebuilt probably 100 mountain bike forks and they all use specific oil, which is the same oil as used in motorcycle forks.  I know that motor oil will not work in those and have experienced the results when a customer has brought me one they tried to work on themselves first.  On mine you just have to remove the wheel and brake caliper.  Then the stancions unbolt from the crown so you can remove them individually and service them.  As for damage, you should be ok.  The only reason damage would occur is if there is no oil in the fork.  Sounds like you have oil, since that is what is making the squishy sound.

[Emil]

I've got the same thing going on now. Squishy sound and also the shocks aren't performing well at all. So, as I will soon work on the clutch and the squeaking front brakes already, I will also change the fork oil.
The repair manual says 38 +/-1 cc of oil type SS#8 is needed.
My only question so far is what does that mean? When I surf around for fork oil it always says something like 10W. Is that the same? Also, the closest it seems to get is 7.5W and there are ranges. The "Motul Factory Line 400-V1 Shock Oil" for example seems to be 2.5-20W. Any suggestions?
-Emil