I have a 2012 250cc Sport Sniper quad, made by Tao Tao,it has a 4 stroke watercooled Loncin engine,Im in need of replacing the top end of the engine, the cylinder jug,the piston and rings, and the head as it is cracked,was wondering if you had any ideas as to where I can purchase these parts,Im at wits end with trying to figure out the right avenue to locate the parts that I desperately need for repairs,we bought it used and were mislead and told at the time of purchase that the problem was only the carburator,that was false,as further investigation into the problem,and after doing a compression test, and having to tear down the top end, proved that it wasn't the carburator that was the problem with the engine not starting at all,the problem ended up being it needs a new piston and rings and the head.any help is greatly appreciated.Thanks