Thread: chinese quad bike two stroke petrol mix

top man well organised -and the young fella I don't doubt learning some really good skills - at least today the spark plugs are simply way better quality than say 30 years ago - so is the oil quality- what I have seen stop two strokes is a carbon bridge on the plug - a small bridge of carbon builds up on the plug and instead of sparking it simply doesn't function- sometimes associated with to rich running but not always - and dirty air cleaners stops them to - idjits leaning out the carb to try and get the motor to rev harder not kind on engine either