xulfiqar n ijax bhai,ive this weird issue with car on petrol..
car gives black smoke on petrol,so i adjusted it thru the screw tht controls petrol flow i guess (NOT THE RPM SCREW),black smoke was less but the rpm of car increased on petrol,so i again opened it up a bit,rpm came normal but black smoke is back..
no issues on cng wat so ever...but wen cng is not available,i run car on petrol n face this problem,ive used carb cleaner but its of no use till now..
any ideas?black smoke is clearly visible..n also,wen i press acclerator,car rpm goes down dramatically,n thn rises up again wildly...so on petrol,ive to keep very lite foot n release clutch accordingly...i also poured some hi -octane in normal petrol,lyk half tank was of normal petrol, some 6 liters of hi octane i throw in...car rpm became smooth,but smoke is there....