ah lai is at pj...go under the bridge after u've past dataran prima....if u r from sunway...u'll see his shop next to the road among the shophouses....
just tried to call the mugen's guy no... it's off la the hp....
1. Idle with black smoke.
2. Engine jerk when idling.
3. spark plug goes black and after replacement its ok for a while but later will be like running on 3 cyl.
4. Changed plug ...