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
jecsr

Totally Confused – Clutch problem or ???

11 posts in this topic

Now this problem with my 04 YZ450F is about to drive me crazier. :ride:

When I place it in first gear, hold in the clutch, rev it up for 5 to 10 seconds. No movement at all. Then it is like I let the clutch out and it pulls away, But I’m still holding it in. :ride: This is kind of a problem when trying to do a hole shot. I changed the oil (Amsoil Synthetic) and filter, check the clutch basket, clutches and plates and everything looks great. Has anyone hear of this happening ? could it be the oil ? It just started happening when I bent my clutch lever on a gate. I replaced the lever and cable first and that didn’t fix the problem. So I went on to the clutches and oil change. Nothing seems to correct the problem. What else can I try ? :ride:

Share this post


Link to post
Share on other sites

Isn't the Amsoil a Full synthetic???

I'm not as familiar with their products, but make sure it doesn't have "Friction Modiifers" in it, or it will do funky stuff with the Clutch.

Share this post


Link to post
Share on other sites

If it's Amsoil MCF of MCV Synthetic Motorcycle Oil, it isn't the problem. The clutch itself is the likely cause. You say the plates look good; they may not be as flat as they seem.

Share this post


Link to post
Share on other sites

I've only used it since my last 2 oil changes. It was recommended by the local shop. He said he ran it in his bike and it was pretty good oil. As far as the plates, they seem flat, no wear on them at all. Almost looked new. I'll double check them. Could it be the springs ? Should I go with heavier ones ?

Share this post


Link to post
Share on other sites
I would go with the Yamaha GYTR cluth kit... and I would get rid of the amsoil synthetic too.
I agree on the clutch kit, but you're off base on the Amsoil.

We need to be clear: there are a number of Amsoil products available, and many of them are blended for purposes other than motorcycles. I'm not talking about those.

Their Synthetic Motorcycle Oil in 10W-40 and 20W-50 (MCF and MCV) are the two that I recommend and use. They are JASO MA compliant, AND API GL-1, which makes them the only real engine oil I know of that carries a label making it a legitimate transmission oil. It works very well, costs only $6/qt, and will not cause any problems with any wet clutch.

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