What is wrong!!!

[comp_nerd4]

ok so i have built the basic spudgun and i stick the potato in push it down then spray in some hair spray of propane then screw it close and start click ing the bbq starter but no combustion! so i open it up click it and im getting spark and if i keep clicking it (wile it is open) some times i huge burst of fire comes out. so what is wrong!


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screw location for bbq starter!

[Shrimphead]

You have probably been putting too much fuel in. Try less fuel.

[SpudStuff]

dont use hair spray it is the WORST fuel ever it is not powerful and gums up a chamber. use ether or starting fluid for cars. Remember less is more. Mabae 1/2 to 3/4 of a second of fuel.

[jrrdw]

What ever you decide to use, after you fuel it up, shake it like nuts to mix the fuel and air better. A more even mix will light better then the heavy load, LESS can be MORE.

[MrCrowley]

the reason why it fires when you take the cap of is because there wasnt enough oxygen/air so you put oo much in,if you accidently put too much in just wave it around for a second and then screw on the cap and fire.

[OwThatsMyEye]

...use ether or starting fluid for cars...

That is going to gum up his chamber alot worse than hair spray will.

[carlbelcher]

Why would starter fluid gum up his chamber worse then hairspray?!

Last time I checked starter fluid is pure Ether...

[MrCrowley]

my starter fluid just turns the chamber white but easily comes off.

[jrrdw]

Starting fluid has oil's in it, i think to help protect parts. The bad thing about ether is it's real hard to get consistent effects, even when metered the same every time. If you can create a controlled injection like hybrds do, it would produce better results. I think you would get better results with a cheep can of carburator cleaner, i allways use that to prime engines instead of ether/starter fluid. Lessing the chance of blowing a cylinder head off the block.

[carlbelcher]

I don't think carb cleaner is a good idea...

I don't like the idea of spraying a harsh chemical degreaser on my plastic cannon.