I contacted customer service on how to order the several different sized jet needles listed in the manual that comes with the carburetor. They said they sell them on their site, I ordered what was described as a "kit". This "kit" contains ONE jet needle. AND IT'S THE SAME ONE ALREADY IN THE CARBURETOR. Total FAILURE. This is incompetence.

Nibbi is a great company with a great product I bought my carburetor I bit my needle they sent me a pack of needles makes my bike run great thank you Nibbi

The quality of these needles is good as expected. I would not call this a kit though. All four of the needles are the same. I expected that as a Kit the needles would have varied in size for fine tuning your carburetor.