Assalam o alaikom, how are all friends? Mujhe thora issue a raha hai liana main.. maine apni gadi ki poori service karwai hai service station waly ko bataya tha k engine wash nahi karwana, but unluckly jab main wapas aya to us ne engine wash karwaya tha.. ussi din maine uske engine oil aur plug bhi change karway thay, the problem is k meri gardi ki pic kam ho gai hai.. jab main race deta hon aur phir cluch chorhta hon tab proper utti hai, normal acceleration pe nahi uthti, i don't know whats the problem could be. can any brother help me plz what the exact issue could be. i have replaced the plugs from local mechanic , plug was NGK.