i was happily engoying my dhoom altered by myself to 107cc and enjoing it when i wanted to do another tweaks and the kharadia (Mohammadi kharadia .. comittee chowk destroyed the head chamber... ) they are nil when it comes to doing anything out of their ordinary .. i juste wanted to increase the chamber size a little to install a good compression pistion. that genuine head of china 4 wheeler which never required tappet adjustement for 6-8 k kms was destroyed.. later i took its parts and fitted in jenuine head .. though a lot better then stock head parts... but wo chass nai ha..
second was when i was feeling lazy one evening and just asked some random mechanic to change oil .. ustads being ustads do ustazi and told his chota to change oil .. he slipped the oil drain nut and from that day my crank case is leaking .. doing juggars with it but permanent solution is to replace that part of crank case which requires repening the entire engine . it happened just few days or weeks after i replaced (from mechanic ) its gear set as due to loose chain it broke and bike stucked and 2nd and 3rd gear teeth were broken..