Maintenance & Technical > KX500 Original

Stock Silencer Clearance

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dmazz71:
Hi,

Is the rear tire supposed to slightly rub on the stock silencer on the KX500 when landing (small, not going 10 feet in the air) jumps?   The subframe seems to be straight as the rear tire is in the middle of it.  The bracket that holds the silencer to the subframe is also fine.

The two rubber bushings that are on the silencer are a little worn, but I didn't think that would matter?  Could the silencer be slightly bent? Not sure if this is normal or if something is out of alignment.

Thanks
Dan

Goat:
The tire shouldn't come up that high on small jumps. Sounds like the shock needs rebuilt or the linkage bushings need replaced. It will rub on larger jumps as most bikes do, especially if you run a wide tire. Rubber bushings are pretty much there to get rid of vibration noise and to give the exhaust some flex to prevent breakage. If you can, throw some pics up.

dmazz71:
Thanks for the reply.

I forgot to mention that I'm 200lbs, it that too much weight for the stock spring?  I haven't messed with the preload or anything on the suspension yet.  Is the linkage bushing the needle bearing that's on the swing arm?

kxpegger:
Looks like it's just barely rubbing. Spacers?

Polar-Bus:
I had the same issue running a 120 wide rear tire. I ended up using a stack of washers behind the bracket to space out the silencer about 3/8". 

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