overhaul engine is a tedious task... only attempt it if u have all the knowledge and tools... if not, better send to workshop.... even at workshop, mechs need to take a few days to complete... its not that easy....
usuali no nid to waste money if ur engine stil ok.overhaul oni when makan minyak hitam n kluar asap putih. change valve seal and grind valve should be enuf. unless kena piston ring then oni u overhaul lo.not cheap leh.
The high levels of competitiveness at the top rung of motorsports have ensured we’ve all been privy to some fine examples of overtaking from the pros such as Michael Schumacher, Aryton Senna and Juan Manuel Fangio...