hey I have recently bought an rx7 and it came with a minuki side feed carb and it sputters at low rpm like between 1k and 2k and the previous owner left me with some new jets for it and I was wondering if the jetting could be causing this sputtering

 

Its a whole tuning process to get it working right. Just swapping jets will not fix it. I would recommend reading the book below cover to cover and then start tuning. The link came from https://foxed.ca/index.php?page=rx7manual near the bottom of the page.

https://docs.google.com/leaf?id=0Bzy...0Y2Fl&hl=en_US