Forks on Zong

[Pliskin]

First time I noticed oil on top of fork cap i thought it was from tree sap. I cleaned it and then few few days ago i saw oil again, so i
knew it was from forks. The oil has dried up and probably some has gone back in not visible in the picture. I am assuming it's o-ring
that I will need to replace. Would anyone know, which o-ring is compatible?

Spud has given compatibility list, but would o-ring be the same, as he was changing fork oil seals and dust wipers but not o-ring?

Honda bikes that Spud listed.
CR-80R (96-02)
CR-85R (03-07)

CRF-150R (07-09)

CRF-150RB (07-09)
NX-250 (88-90)
XR-250R (81-82)

Thank you.

[SpudRider]

The Zong employs the same forks as most of the Hondoid Chinese motorcycles, Pliskin. Therefore, if you can find an O-ring for one of the Hondoid forks, it will undoubtedly fit your Zong.

Also, you can remove the O-ring, and take it to a Caterpillar Tractor repair shop. They can measure the O-ring, and can usually find a replacement for just about any O-ring you can imagine.

I will check my records and see if I can find information on the O-ring which fits the fork caps. However, I doubt the O-ring from any of the Honda forks you mentioned will fit your Zong's Chinese fork. :(

Spud

[Pliskin]

Originally Posted by SpudRider

Also, you can remove the O-ring, and take it to a Caterpillar Tractor repair shop. They can measure the O-ring, and can usually find a replacement for just about any O-ring you can imagine. :wink:

Thank you Spud, that's what I was thinking of doing. I'll start my hunt tomorrow.

[Weldangrind]

I have an assorted o-ring kit that I picked up for cheap, and it has saved me several times. Can you buy something like that locally?

[SpudRider]

I'm not so sure your forks are leaking oil, Pliskin. I think you would see a much bigger mess if the O-ring in the fork cap had failed. You would also see oil around the circumference of the oil cap.

Spud

[FastDoc]

Originally Posted by Weldangrind

I have an assorted o-ring kit that I picked up for cheap, and it has saved me several times. Can you buy something like that locally?

+1. I have a few kits from HF that I use for non-critical situations.

[Pliskin]

Originally Posted by Weldangrind

Can you buy something like that locally?

I am sure you can, but never looked into it.

Originally Posted by SpudRider

You would also see oil around the circumference of the oil cap.

You are scaring me a little now Spud. :? I went for a short ride as i needed to change engine oil and after a short ride i could see oil coming out.
Took the picture as well. My guess is o-ring, what do you think it could be if not o-ring?

Need to buy a wrench of some sort first. The fork cap according to my measurement is 22mm.

[SpudRider]

Egads! 8O I now believe the O-ring is leaking.

Zonshen does not list a part number for the fork O-rings. If I were you, I would remove the O-ring and take it to a shop, such as Caterpillar, which can measure it for you. Once you know the size, you can surely find a replacement. Now is a good time to change your fork oil, as detailed in the following thread.

http://chinariders.net/modules.php?n...b785e6f#137744

Spud

[katoranger]

I think I can see a bit of a pinched o-ring in the picture.

[zingshoen]

nothin a bit of permatex silicon glue won t fix

but a set of o rings should be easy to find. try supercheap or autobarn. i bought a set from the vietnamese 2 dollar shop, and they are good little o-rings :wink:

[Weldangrind]

Originally Posted by katoranger

I think I can see a bit of a pinched o-ring in the picture.

That's what I thought as well. That's an amazing photo.

[FastDoc]

Bike is safe to ride in the meantime.

[SpudRider]

Originally Posted by katoranger

I think I can see a bit of a pinched o-ring in the picture.

Good eyes, Allen! 8O

Spud

[SpudRider]

Originally Posted by Weldangrind

That's what I thought as well. That's an amazing photo.

You've got a very good camera, Pliskin! That is a great photograph, indeed.

Spud

[SpudRider]

Originally Posted by Pliskin

...Need to buy a wrench of some sort first. The fork cap according to my measurement is 22mm.

That fork is also sitting too low in the upper triple clamp, Pliskin. Either the fork was installed too low at the factory, and/or or the pinch bolts in the triple tree are too loose.

I agree, it's safe to ride the bike for a while. However, as with most Chinese forks, your Zongshen forks don't contain much fork oil. :roll: Therefore, I suggest you service the forks, re-install them a little higher in the triple tree, and replace the damaged O-ring. You can temporarily repair the O-ring with some black RTV, as Zingshoen suggested. If you measure the O-ring after it is removed, you should be able to find a replacement, and install it later, with the forks in place. Just loosen the top pinch bolts in the triple tree before you either tighten, or loosen the fork cap.

You don't need a 22mm socket for the fork cap. The socket is nice, but an adjustable crescent wrench will work just as well. That's what I used when I serviced the forks on my Zong.

Spud