now when you fire it, if it doesnt idle just lean the LSN 1/12(1 hour) @ a time till it idles smooth and not too high!...THEN you adjust the HSN and hour at a time till you get the top speed you want without getting too hot!..you will probally have to richen the lsn alittle after you get the hsn tuned cause it has a DIRECT affect on the LSN!...