I have an 02 ZX6R bought new which is still stock. I would like to put an aftermarket yosh slip on and possibly a K&N filter, but I am not sure if I will have to re-jet. The service mechanic says the bikes are jetted very lean from the factory but a slip on would not require rejetting. However if the bike was running lean from the factory wouldn't if show signs of lean mixture? The bike runs great now so I do want to give myself more headaches down the road, but I would really like it to be less restricted. Anybody done similar mods with advice?
Thanks - Rogue
Thanks - Rogue