Thanks very much everyone. Actually, the problem with the forklift is resolved! I literally saved $1K.

Basically, the person from whom I bought the forklift sent his mechanic to take a look at it as a courtesy. The mechanic tells me "One of the hoses that goes to the hydraulics was loose. What kind of a mechanic did take a look at this? How did he not notice it" So, I asked him if there are any issues with the fuel regulator, he says no. He said he also did some other adjustments. I think the forklift is a little louder (maybe works on a higher rpm) but regardless, it works and it is a pride of ownership for me, more beautiful than a $50K Mercedes in my eyes. Next thing, I will be painting it when I have time.

Now, one problem is, this forklift has solid tires (I don`t know the correct definition) that are obviously meant for outside use. It doesn`t have the cushion type tires. So, this causes the forklift to turn at larger angles and not as nimble as the cushion tires. It is like a clumsy monster in my warehouse (I already messed up a dry wall)

Quick Question: Can the two smaller tires in the back changed to those cushion type tires?

Thanks much everyone.