Last May I dropped my Zongshen ZS200GY-2 (Sierra) in a mud pool, and flooded the engine with dirty water. After pumping the water from the engine, I was unable to start the bike, so a friendly ATV rider delivered me home.
The next day I returned, and got the faithful Zong to start. After riding the bike down to the parking lot, I trailered the bike home.
After several oil changes, the oil filter finally stopped catching silt from the oil. I installed new piston rings, but after several hundred miles, the Zong was burning oil, and the bike didn't shift as well as before. Therefore, after riding my faithful Zong over 70,000 miles, I declared the original engine dead.
Here is the final odometer reading. I had ridden the bike for several hundred miles with a broken odometer cable, so I know I the final mileage was over 70,000 miles.
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Spud
"Never argue with an idiot. He will drag you down to his level, and beat you with experience."
Mark Twain
2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220
Mods made to my Zongshen ZS200GY-2:
http://www.chinariders.net/showthread.php?t=6894