[AT] LP engine problem query

[Grant Brians]

I feel very lacking in knowledge and embarassed that I cannot find where I 
stored the ATIS messages that discuss how to fix a condition on LP engines. 
I have a forklift that is running badly. The fuel ine from the tank goes to 
a unit which I believe gasifies the LP liquid? In any case it is freezing up 
for me. I am having fuel starvation on the engine. I assume that I need to 
correct something either in the fuel line or the "gasification unit". The 
flexible line from the tank has a great deal of wear/age cracks in it and I 
assume there might be damage internally? Help!
    Additionally, the forklift worked fine until recently, but always with a 
bit of unevenness. I don't know if that is related. A gasoline engine would 
have a fuel filt, but I don't see one on this propane engine. Is that right?
    I will be working on this tomorrow and hopefully fixing it. Any clues? 
Thanks so much!
        Grant Brians
        Hollister California