Grumpy, Yes it is gravity fed, it starts easy usually 1 to 2 slow pulls with the choke on (choke comes on when speed control is at max) it idles very nice and smooth.
if i advance the speed control too fast it will stall after trying to speed up , if i do this very slowly it will get slightly faster but then die, only if i cover the carb half will it act like a normal mower, i have at one stage noticed it was spitting fuel out of the carby while running , much like it was getting too much fuel and forcing some back out ?? or could this be a valve problem? thanks for you help guys, look forward to getting this sorted , and Mark ,no i don't have another carb to try but i am looking around to do just that .