Posted this on "jetting" and got nothing not sure what's up w/ that. Hopefully some sympathetic 650 owners will chime in... Just put a WB E2 exhaust on with 6 six disks. I have a K&N filter with the snorkel still intact. No smog blocker. Bike idles fine and starts right up. It pops on decel. I'm wondering if I need to rejet the main jet or can I get by w/out? Just looking for a bit better performance and to shave off some weight, nothing radical. Thanks!