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
Clod_Thrower

Clutch Boss

7 posts in this topic

Last night I tore into my clutch to install my PE clutch basket on my '00 426. After looking at the parts I noticed the clutch boss had some grooving along with the old basket which I round filed. Has anyone else had the boss problem? How many '00 426 guys have had to buy these? I smoothed out the grooves but I know this is a temp. fix at best. $$$$$$$$

Share this post


Link to post
Share on other sites

I used to file the gooves on my YZ250, several times in fact. It is temporary but I don't think it is necessary to replace it until you have filed it so much that it doesn't line up right. Lots of 2smkoe racers I know do this regularly. I hear that aftermarket baskets like the Hinson are much more durable so it may be worth the cash to upgrade...

Share this post


Link to post
Share on other sites

Just in case you're interested, I have a hinson inner hub (clutch boss). It is MUCH more durable, is machined (not die-cast) so it spins truer, and has extra oiling holes in it for better oil flow to the plates. A big improvement if you don't mind the cost.

It's about $285 from Hinson, but you may be able to get it cheaper somewhere. I couln't find anywhere that carried it other than Hinson! Hope this helps.

Share this post


Link to post
Share on other sites

Clod: That's a very interesting observation concerning the clutch boss. I only intalled the Hinson basket on my '00 426 and don't remember any grooving on my boss....not that I inspected it. Are these grooves on the boss splines where the plates make contact? Were these grooves noticeably deep? If my clutch becomes grabby again, I think I'll go with the Hinson boss and pressure plate as well.

Share this post


Link to post
Share on other sites

Boit, Yes they were on the splines. They were deeper than the grooves on the basket. It took me several hours to get them out. Hinson sounds like a good idea. I hope everything works got a race on Sunday. Still haven't got my lower fork tube (dented, parts guy ordered wrong part) so I will be oiling the track. Oh well, if the clutch works good at least I will be in front for awhile.

Share this post


Link to post
Share on other sites

My clutch boss was grooved and I replaced it with the stock one 35.00 ...And at the same time I drilled the whole thing duplicating the oil hole in every raised area . I figured that I could not hurt it to bad it's only 35.00. So far so good the clutch has never felt so good ...I will keep you informed on the mod after I get some more hours on it

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