Kawasaki KFX450 Forum - KFX450Central banner
1 - 11 of 11 Posts

·
Registered
Joined
·
46 Posts
Discussion Starter · #1 ·
I dont no if everyone is having as many problems as i am with bearings and on this machine or if its just me. but before you jump to conclusions, and tell me yours are all fine, you might want to check yours.
My rear carrier bearings have gone out twice now and no my axle is not bent. I had to replace the carrier its self once. two of my lower a-arm bearings are shot and the other 2 are about to go. These are hard to tell if they are bad until you pull off the a-arms and remove the seals. I didnt no until i did this. My stearing stem bearing is shot, my swing arm bearings are just about gone and my upper a arm bearings are just about bad too. Every year i go through and put in all new bearings and bushings no matter what quad I have at the time. I must say that the kfx is the best one I have had so far but no grease fittings is killing us here. I am drilling holes in my a-arms and putting some in. I am also going to do this on my stearing stem and drill holes in the swing arm bold at bearing locations and put a grease fitting at the end of it.
 

·
Registered
Joined
·
78 Posts
The a arms use ball joints same as the steering stem. It costs 150 bucks to replace uppers and lowers complete. All Balls makes replacements. The stem ball joint is 83 bucks.

I haven't looked but my bearing lasted all season in my carrier. Do you cross a lot of creeks and water ways? I ususally try to avoid submerging the carrier as I hear it holds water.
 

·
Registered
Joined
·
8 Posts
teamdns.. your an idiot.. you are riding your bike way to hard.. obviously you just have a junk bike

maybe you should buy a YAMAHA RAPTOR!!! hahahaha
 

·
Registered
Joined
·
108 Posts
I'm still trying to figure out how putting a grease fitting in a rear carrier or steering stem will do anything for you when you have sealed bearings in those locations?
 

·
Registered
Joined
·
8 Posts
you drill a hole in the middle of where the bearing sits. .. and then you would tap it and put a grease fitting in that. why wouldnt that work?
 

·
Registered
Joined
·
108 Posts
QUOTE (Jordan1984 @ Dec 20 2007, 09:37 PM) index.php?act=findpost&pid=4914
you drill a hole in the middle of where the bearing sits. .. and then you would tap it and put a grease fitting in that. why wouldnt that work?
Most, if not all, atv's come with sealed carrier bearings and are pressed into the carrier. The seals will not allow grease to penetrate.

they look like this



Aftermarket carriers may not have bearings with seals and could include a grease zerk for lubrication.
 

·
Registered
Joined
·
79 Posts
I had the seal on the sprocket side of my carrier go In the middle of a race. Totally trashed the bearing on that side. But I mean of course it was the seal was gone.
Other than that no problems over here.
 

·
Registered
Joined
·
108 Posts
YFZ's are no different.. I've replaced three carriers/bearings on my YFZs over the last 4 years due to bearings/seals going bad.
 

·
Registered
Joined
·
24 Posts
QUOTE (teamDNS188 @ Nov 28 2007, 11:42 AM) index.php?act=findpost&pid=4583
I dont no if everyone is having as many problems as i am with bearings and on this machine or if its just me. but before you jump to conclusions, and tell me yours are all fine, you might want to check yours.
My rear carrier bearings have gone out twice now and no my axle is not bent. I had to replace the carrier its self once. two of my lower a-arm bearings are shot and the other 2 are about to go. These are hard to tell if they are bad until you pull off the a-arms and remove the seals. I didnt no until i did this. My stearing stem bearing is shot, my swing arm bearings are just about gone and my upper a arm bearings are just about bad too. Every year i go through and put in all new bearings and bushings no matter what quad I have at the time. I must say that the kfx is the best one I have had so far but no grease fittings is killing us here. I am drilling holes in my a-arms and putting some in. I am also going to do this on my stearing stem and drill holes in the swing arm bold at bearing locations and put a grease fitting at the end of it.
Lonestar racing has a rear carrier that has four bearings instead of the stock three. and i have been using Pivot Works bearings, and they have been holding up very well under the same riding conditions as the stock bearings were failing.
 
1 - 11 of 11 Posts
Top