I would like to do some stealth riding in hostile territory, so can anyone out there suggest baseline jetting for a 1999 wr400 with the stock pipe with baffle installed? I searched for an hour, but could not find the info, probably because everyone was going the opposite way with a high flow pipe and airbox. I am currently running a Q4, and it is way too loud. here is the current jetting, which is pretty spot on. oh yeah, 80F and sea level (gotta love hawaii):
Needle: JD Blue
Fuel Screw: 1.5 turns out
I know it will kill the power, thats ok. i am assuming the new jetting will have to be way leaner, due to the lower O2 flow rate, but what sizes? 155MJ? 40PJ? clip in pos 2?
Mahalos in advance!
Edited by jivenene, February 25, 2010 - 12:50 AM.