i am facing same problems in my cg 1984 model after i got my hands on it 1 month ago,
*when i start my bike on the morning it gives smoke but after some time it is gone and be like it the whole day, but the next day same problem,
*when i release the cluth no matter in whichever gear the bike is in, create really strange sound like ''khattak khattak''
*when i first got the bike it was fast like hell, its acceleration was awesome, i had rode many cg's 90,2008,2010 but never had that good feeling before, well after that i have fixed the deal and bought that in less than 30k, but now its missing the accelerator, ''Bike roti ziyada hai leqin bagti nahi hai'' i said to mechanic.. he said, clutch plates is dead...
anyone knows how to diagnose those problems without expending more dime on it, like 125 mechanics says ''600 bi lag sakte hai 2k bi lag sakte hain in maslo ko hal karne ke lia''