Bajaj Auto — Facing problem after servicing

Address:

Agarpara pritinagar pin-700114 p.o-panihati, 28

After servicing I am facing start issue in my bike. I have changed my spark plug. But before changing my spark plug my bike start in one chance but now it will start after several try. After changing spark plug this issue will come. I have cleaned carburettor in last servicing after that bike will stopped when oil is in main line. When I switched into reserve then it will starting.