Dear Fellow members:
I have Toyota starlet 80 model. Recently I am having some performance issue after doing its tuning.
The stories goes like this that I went to workshop where i regularly goes for tuning work of my car. But this time they had new mechanic with them. So i decided to try the service of the new mechanic. He did all the tuning work in which he also adjusted car's tappet which were haven't done since I bought this car almost 1 year. After doing tuning, the car performance went down. Before tuning I was able to reach 80 speed easily in it but after tuning the car was not able to cross 60 easily and sometimes it move backward after shifting to forth gear. After that I did some discussion with previous owner of the car as he lives in my neighborhood. He told me to went to his mechanic to whom he used to do all its tuning when he had the car. I visited to that mechanic he told me that previous mechanic had adjusted tappet according to 660cc car and told me that we have to do its tuning again. I said ok do it. After their work I felt little better performance in the car but not that much. Still i feel like car is under power.
Please note that car is engine was overhauled by previous owner 3 4 years back and is in original condition means no extra modification done in car's engine.
Need your advice of what's going wrong or could you please recommend any good mechanic.