"Little Buddy Heater" Fix?

[rgreenland]

I have a Little Buddy heater that doesn't want to stay lit.  It's my assumption that the little trigger that turns the unit off when knocked over is stuck.  However - Its just a guess.....and that's about as far as my (lack of) skills will get me.
Know anyone around that can take a look at it?  Don't know if its an easy $20 fix or if I just buy a new one for $65.
??

[meancuznalfy]

The flame orifice gets plugged on them sometimes and they won't run.

[lifeshort]

The flame orifice gets plugged on them sometimes and they won't run.

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I understand they are  very hard to clean. Seems to happen if you run them on a big tank instead of the disposable one without a filter.
Google  cleaning buddy heater orifice

[Bduck]

I use a tank top mounted Dyna Glo single head heater in my boat. Tried using a small portable Buddy type with a hose coming from tank to heater. Issue was the hose froze and couldn't get burner to light, but when installed a small propane bottle it worked fine.