Dear Seniors,
Would you please advice for my query, I got honda civic ex95 Dolphin,with d15b3 single carby engine, car is running on petrol since 1995,no cng (no kit is even install uptill now) i got very much gud petrol consumption as well as with the shoot, but the problm im facing rite now when i cross 100 my car does not response like it used to response on cumming to 100 km/h, it feels like that its easily coming on 100 km/h but after it goes very slow slow to 125 km/h & thats it, it wont goo further...after doing many experiments like putting (boch 4point plugs,6mm wire,simota carby intak,new oil+new oil filter,fully clean carburator but still my problem is not solve...my car pull 1st gear easili to 75,but after words its pulling 2nd & onwards gear uptil to 125 km/h only.....what is the problem?????can any 1 suggest??please help me out seniors... Earliest reply is highly appretiable. Thank you