I have Mazda Rx7 1991 Convertible 13b rotory engine i got for $1500 but i ran into some problems driving it home It is Hesitating when i press on the gas kinda jumpy like if it didn't have gas but it does have gas.
Can anybody help me what this problem is ?

 

I have no experience with rotaries except for sampling a ride with this here bike:

It had some hesitation too.

Like in other engines make sure you have good spark and a clean throttle body. I would have a look at the spark plugs and wires first.