HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
SLO_Rider

Fork Fluids: Yamaha 01 Vs. Amsoil Shock Therapy

8 posts in this topic

Has anyone compared Yamaha 01 (Pro Circuit 01, etc...), Amsoil Shock Therapy or even Mobil 1 ATF fork fluid? I'm looking make the initial stroke on my '05 Yz450 as plush as possible on motocross square edge acceleration and braking bumps, without compromising overall performance. Does Yamaha 01 or Amsoil Shock Therapy or even ATF have a "plusher" feel over the other? Any comments, tips or ideas greatly appreciated :cry::cry::cry:

Share this post


Link to post
Share on other sites

i was using straight mobil 1 atf and it did make the initial movement plusher,in fact the whole stroke was improved. i now run a mix of ohlins 5 wt and M1syn ATF,60/40. as i have stiffer valving now and wanted to reduce the viscocity a little. also i've come to learn there are a couple things lacking or added to the ATF that mixing balances out. :cry:

Share this post


Link to post
Share on other sites

The 05 YZ's have a completely different type of fork than older YZ's. The new forks are very complicated and require special tools.

When I changed my oil I was told by Factory Connection to use Honda Showa 5 weight oil.

The only reason I changed my oil was because I had to change springs. My forks are awesome but it took some clicker tuning. They are very sensitive, a few clicks can make a big difference.

Share this post


Link to post
Share on other sites

I have ran both race techs synthetic 5w and amsoils 5w in our 04 250f's. The amsoil fluid seemed plusher to me for some reason. And considering it's $9/qt. vs. $25/qt that race tech is selling for, it's a bargain too. Amsoil also sells 10w, which allows you to blend the two to get any weight from 5w to 10w.

Since trying the amsoil about a year ago, I havent ran anything else.

Share this post


Link to post
Share on other sites
The 05 YZ's have a completely different type of fork than older YZ's. The new forks are very complicated and require special tools.

When I changed my oil I was told by Factory Connection to use Honda Showa 5 weight oil.

The only reason I changed my oil was because I had to change springs. My forks are awesome but it took some clicker tuning. They are very sensitive, a few clicks can make a big difference.

Breezer: Looking at the manual it looks like you only need a 48mm wrench and the fork holding tool, are there other tools that are necessary?

Share this post


Link to post
Share on other sites

Those are the 2 tools you need. I made mine on a milling machine instead of buying them.

I'm married and the shop is peaceful.

The fork cap wrench is a big bastard. It would be very easy to round off the cap with the wrong wrench.

Great forks though.

Share this post


Link to post
Share on other sites
Those are the 2 tools you need. I made mine on a milling machine instead of buying them.

I'm married and the shop is peaceful.

The fork cap wrench is a big bastard. It would be very easy to round off the cap with the wrong wrench.

Great forks though.

Are there any suggestions or tips you have for changing the fluid in the '05 forks? I've changed the fluid in my '02 many times, this will be the first on the '05..... from looking at the manual it looks quite a bit harder!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0