I have this car since Jan 2013, till date it giving trouble while drive on petrol, its perfectly alright over CNG, already have done carburetor tuning many times from 2 different mechanics i.e. carburetor cleaning, plugs change, carburetor parts replacement. Now the drive is smooth over petrol but giving starting issues like long self starting. Mechanic told me that manual fuel pump is working perfectly.
Any suggestion to rectify this issue plz????