I had a bernzomatic that gave me trouble and I took it apart and blew it out with an air hose....may have been moisture...

 

This is consistent. If I crack the valve more than a hair, it'll blow out.

 

what kind of fitting did it come with ? if it came with a nut that screws directly on the tank then a reg. is prob. not needed. is there an air adjustment? if so may need to open it to get more air for combustion.

 

No air adjustment, just a propane valve. The hose is connected to the tank, but I don't remember it it came that way or I adapted it.

 

I looked at 2 on harbor freight dot com. did it always work like this or just start?
still sounds like too much gas/not enough combustion air? what color is the flame ? blue or yellow ....

 

It's the cheaper one, without the piezo igniter. Flame is a nice healthy blue. It's always done this, and it's beginning to get aggravating, ya know? Burn 3', relight, burn 3 feet, relight... I can't pull the trigger fully without it flaming out in a second or two.

 

ok so it burns good until you pull the lever then it goes out??? look around for some air vents . it should have a way to suck air in as it releases more gas . could be small holes which might be plugged. the pictures werent that great on the website so i could tell
in order to burn properly it needs equal amounts of air and gas

 

It mixes the air right in the burner head. I don't see any mixer vents before the burner nozzle.

I looked at the online manual. I did not see anything about using a regulator to stepdown the pressure.

If you light it with the knob/valve just cracked, will it stay lit when you squeeze the trigger?

Realize it is unlikely, but don't put cylinder on side it will push liquid out. Bad Thing unless you want a Daisy Cutter.

Good Luck. Be Safe. Burns Hurt.

 

There is a low-pressure "pilot" flame. When the trigger is pulled, the blowtorch comes on. I'll look for adjustments on the burner head.