Hi Mate and Welcome,
Firstly the engine management light always comes on when you turn on the ignition so don't panic, i always wait till that light goes out before starting. What condition are your spark plugs? are they getting wet with fuel? if not then its a fuel blockage problem in the carbs or you have no fuel and need to fill up next question, will they spark out side of the engine (i.e earthed out on engine casing) if no then try a new set of plugs, if still no then new coils, if still now then check the wires to and from the coils.
Its always the simple things that make life hard so always check the cheap things first, keep a clear head and think logically.