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-   -   Ten Fork Oil ( https://www.xt660.com/showthread.php?t=20026)

enduro374 21-12-12 09:45

Ten Fork Oil
 
Anybody know what's supposed to be in there as standard and have any experience of thicker oils up front?

Does a spacer mod help?

Thx

Petenz 21-12-12 11:14

Kev's spacer mod helps.. I have 10wt Motul fork oil in my XTR..
Yamaha use very basic damper rod forks in the XT..
I had to build a set of adjustable valves.. made a big improvement..
I think the spring for the return/rebound damping is a bit heavy still.
The compression damping is adjustable by changein spring pre-load..
I will most lightly go to USD forks in the end..

http://imageshack.us/a/img140/7093/valvef.jpg
http://imageshack.us/a/img812/2962/ssa41924.jpg
http://imageshack.us/a/img233/8521/ssa41922.jpg
http://imageshack.us/a/img32/7183/ssa41921.jpg

Pleiades 21-12-12 11:22

Not absolutely sure what oil is in the forks out the box, but 5W rings a bell? It is pretty thin anyway!

Be wary that different oil manufacturers grade their oil differently – some use #W, some use SAE# and Ohlins have their own unique grading system; so when experimenting always use oil from of the same brand. I tend to stick with ones that use the SAE grading, because that is actually an international standard and consistent.

Spacers will only help with preload, so if you can’t get the rider sag you require (usually 25-33% of available travel) with the preload adjusters on the fork tops, then adding spacers will help. They will not change the spring rate compression, or rebound damping. Adding spacers will reduce the effective travel of the forks as they will get coil-bound much earlier in the stroke. If you can’t get the sag within spec then realistically new springs, set for your weight and riding conditions, are the only way forward (and they aren’t actually that expensive).

FYI - I am riding the Tenere with Ohlins 60N springs and Fuchs SAE10 oil at the moment – and it feels good.

duibhceK 21-12-12 13:00

Quote:

Originally Posted by Pleiades (Post 182038)
FYI - I am riding the Tenere with Ohlins 60N springs and Fuchs SAE10 oil at the moment � and it feels good.

SImilar for me: Wilbers progressive fork springs and 10W oil

phil ten 21-12-12 15:41

What about trying Cartridge emultors?

enduro374 21-12-12 16:09

Quote:

Originally Posted by phil ten (Post 182050)
What about trying Cartridge emultors?

Tell me more...

Pleiades 21-12-12 19:02

Quote:

Originally Posted by enduro374 (Post 182053)
Tell me more...

Emulators are basically...

Quote:

Originally Posted by Petenz (Post 182037)
I had to build a set of adjustable valves.. made a big improvement...

http://imageshack.us/a/img140/7093/valvef.jpg

This explains it all... click here


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