Also remember that electricity is like a lazy worker, if it can **** off home without doing its job, it will. Even with just a coil, lead, cap and spark plug there's a limited amount of things that could be wrong: Dead/dying/faulty coil Damaged or old coil lead Damaged or old plug cap Damaged or faulty spark plug Not much more than that, electrically. The other thing is CARBS CARBS CARBS with these bloody fizzers Swap the jet housings with jets in place with cylinder 2. Remember the inner and outer 2 are different to each other, but you can swap inner jets to inner jets and outer jets to outer jets. You will get it sorted, just go through your troubleshooting steps slowly and carefully.