Here is a direct quote from DR Q. If you are not familiar w/DR Q he is one of the most knowledgable builders of 2-stroke suzuki's out there. This was a response to the question of what flaws do they have from the factory.
OK,
I'll spell it out in black and white in case anybody cares.
1987: The bike came out with a head w/only 6 X 8mm studs holding it down, a head chamber prone to detonate, a "bleed' type carb that had a lean spot/jetting issues and the case had no support around the magneto side crank bearing.
The bike detonated, beat the crank bearings/case out and then major vibration started. All this vibration f-cks evrything up........from the frame, bolts, pegs, flywheel,cylinder ears cracking etc, etc. The longer/harder the bike is run before it's fixed the more stuff is trashed.
I wrote an Rx on MacD that addresses these issues and more so you will end up w/a bullet proof LT500 that you can actually enjoy riding instead of learning the "finer points" of "tow rope wrangling"
$.02
RK