I sure hope my new '20 T2 doesn't have this issue. My last Kawasaki was a '75 KX125 that came with welding spatter inside the gas tank and no fuel filter. The spatter destroyed the chrome cylinder liner but was repaired under warranty. Unfortunately the Kawasaki mechanic failed to seat one of the wrist pin circlips which subsequently fell out, seized the engine, locked the rear wheel at 30 mph, scored the new piston and cylinder on it's first use. The dealer then refused to fix their screw-up so my dad had a steel sleeve installed in the cylinder and we rebuilt the top end ourselves. I guess I'll find out, only 20 hours on mine so far. Good luck.