Ken, make sure you fill the cup under the burner about 3/4 full then light and wait til virtually all the alcohol is burned off. Then turn on the burner. Sounds like you have enough pressure. The burners themselves may need a little cleaning, but if you can get them to light, they actually are self-cleaning. (Parts for the burners will probably be pretty hard to find if you need them.) You will hear the pulsing of the air/alcohol mix. Multiple burners? Try them all. I''ve got a 33 year old Galley Maid pressurized alcohol stove w/ an oven an 3 burners in a lovely brown shade. Since I only use the oven two times I''m considering replacing with an Origo two-burner non-pressurized alcohol. Certainly safer.