- Wa state
Hello, and sorry for bringing back an old thread. Question to the group: I just finished reading this entire thread. I've noticed that almost all of these jet setting are way leaner than stock with a total jet load of anywhere from 220 to 240 seems to be the normal. A stock 760 (from a gp760) runs a jet load of 245 (front) and (247.5 rear) The only theory I can come up with is that all the mods we are doing to these engines causes the better, or larger air flow through the carbs making the jets more efficient. Is this true? If not can someone explain to me how you can run a leaner setting than stock ? Especially with these mods. Thanks, and great thread.