Ok so I looked around but couldn't really find a good answer to my ?. I have an old blaster that has good rings/compression, carb has been cleaned , tanks been checked, has spark, but it will not start. If i put alittle gas in the cylinder it will fire but dies right after starting. I have tried a different carb that I know is in working order and same result. reeds are brand new as well. Any ideas im out of them?