yernkie
05-30-2006, 12:09 PM
2001 400EX. Just installed a full Yoshi RS3 system. Removed the spark arrestor/sound insert. K&N filter, K&N Precharger filter cover, no airbox lid, and an Outerwears airbox cover. Yoshi said to change to a 178 main jet and leave everything else alone. Is it just me or does that sound way too rich? I could only get a 180 (I was in a pinch) and it seemed to run great and pull hard. I have not had time to pull the plug and take a look at it. Any thoughts? Anyone else run a setup similar to mine? If so, what is your carb setup?