I got this advice on another forum of CD200. Might be of work to someone
A Free advise for everyone who has CD200*
Jin bhaion ko apni Roadmaster ke carburator ka issue hai ya unko samjh nai ata ke konsa carb use karen. Aap Honda CG125 ka non euro wala carburator lagayen orr uss mei Main Jet ka size 100 or Slow jet ka size 40 rakhen (yeh jetting geniune honda cd200 ke carburator mei ati hai). Or apni bike ke tappets 0.05mm pe adjust krwa den jo ke geniune setting hoti hai. Insha Allah your bike will give you above 30km/l. T