@Harish Congrats for restoration of great legend Chetak. I am also going to restoration of my dad's 1998 Bajaj Super (3 port Without reed valve) In fact I have restored complete engine. New crankcase,crank,cyl.piston.stator & magneto,carburattor. Only color job is remained. BTW important thing is you have installed NGK Iridium IX BPR6HIX which is incorrect spark plug. Correct heat range plug for Bajaj 2 stroke scooter is NGK BPR5HS BPR6HIX is for CNG engine. So don't drive with incorrect heat range spark plug. You will not get proper fuel efficiency & power output from engine. Possiblity of damages. Coz spark plugs with incorrect heat range overheats the engine & can create criticle problems.