I also have visited a good old mechanic in G10 markaz, he did some tuning of engine on CNG and now i will check the milage , also there was some oil leak near distributed, he inserted new seal on that. Also he said that engine is in good nik and no need to adjust the timing/advance at the moment. He said come to me next week and share your experience, then he will adjust advance/timing if required.
Also while adjusting petrol setting, first he reduced the idle RPM which were quite high, but my RPM is not working so he can't tell that how much RPM is reduced but engine sound gets quite low and no vibration.
He also adjusted carburator settings, but it was disaster, because my carburator was leaking petrol, he said that for this he need seals which i need to brought from rawalpindi :(. Also there is a value through which we can control fuel input in carburator that was sealed with epoxy, and he said he can break the appoxy, but it is not a good idea as it can cause further leaks
He said I have two options,
1- Change the carburator and find some kabuli version
2- Find seals and install them
Unfortunatly i did not tak the picutres of carburator, but my carb looks almost same as mentioend in D15B3 carb. ANd there is a yellow thing in picutre, this whole part was covered with epoxy, also usky thora peechy hi ik nut hy spring ky sath laga howa waha sy petrol leak ho reha tha.
Also can you people share what speed you can expect from this car with A16A1, my car easily goes upto 60KM but after that acceleration is quite slow even if i press full padel as well.
He said This car is not very powerful with 1.6 genuine engine running on CNG when it has its orignal engine, however on long routs it can go upto 120,140.
Perhaps why i feel it under power because previously i have a coure and that runs like a rocket (all genuine, no alteration).
please share your experience incase you have orignal 1.6 liter engine installed