Thanks Grumpy. I'll put up some pictures of the snipper and the carby. I've already done some of the things you mentioned. New fuel, filter, spark plug, there are no external adjustments on the carby; It is all pre-set. the only adjustment is a throttle speed screw to move the throttle cable back and forth slightly. I will have closer look at the fuel tank and cap. As to brand...well I can't see any markings on it and when I showed it to the lawnmower shop they said it is a throwaway job. I'll get the pictures up today.