Are you referring to those guys that were dumping waste PCB's into the fuel supply,
pretty sure that was a regional thing and likely the result of nefarious actions on the part of fuel carriers, not fuel refiners.
Just get the exhaust up to operating temperature like I said in the first place, your cat will inherently run as hot as it needs to run or it is indeed broken because it works on chemistry and yes, the warranty on the cat converter is longer then anything else on your bike, that's the rules.
The question asked was what to watch for when you go to look at used KLX dirt bikes.
He should be looking for signs of cracks in the area of the top rad mounts and the rear subframe specifically.
I had one in my garage not long ago and the entire rear hub and brake was trashed but that was...
8 foot long landscape timbers are 5 bucks each, 6" lag bolts plus some 3/8" threaded rod is also cheap and makes for a great way to bolt landscape timbers into the shape of something useful. That makes for the cheapest and by far the most sturdy garage shelf support I have ever found.
I made a...
:| that's a relatively small scar on the landscape, is about 2 big trees wide at the widest spot, I think the forest might survive.
... but if you added that damage to all those other little trails you would have a serious problem. Those are quad trails you see, not motorcycle tracks.
Sand hills are easy to fix, you just send the sand from the bottom of the hill back up to the top. It's the top soil layer which supports vegetation that is fragile. Nothing promotes trail erosion faster then quads and horses, they are evil things. The quads that is, the horses aren't evil...