Seems like your having fun. We just got back ourselves from a few days out. Im on a qingqi also. Same iffy starter, especially when it's hot. Iv given it some (heavy duty ->) abuse but it held up great.

Just wondering tho... ive been thinkin about changin the tires myself but i thought those off road tyres were a bit shyte on road, my stock tyres have been pretty good off and on road so far. What do you reckon? Is it worth the change over?