ok i think i may have finally traced down the problem. the grill ignitor that im using had a 90 degree turn on one probe so i cut it off and removed the little plastic sheath over the wire because i assumed it would be like automotive wire and would still be insulated but i suppose im wrong because ...

ok turns out it wasnt the fuel mixture but the ignition system. i used two screws that where coated with something that isnt conducting electricity very well so i am switching to machine screws and soldering the leads to the screws so i think i may have fixed it. thanks for all the input everyone

so i could simply go to ace or lowes pick up one of those little blue propane torches and use it the same way i would hairspray?

thank you for the suggestion but i would prefer a cheaper solution to propane as i am on a very very limited budget

Hello i am a brand new member and i need some help if possible. today i made my second combustion type potato cannon and for some reason it will not fire. so here are the specs its combustion chamber is a 2 foot section of 4 inch pvc that has a coupling to the 5 foot section of 2 inch so its pretty ...