I just installed a full RS-3 system and factory jet kit. My first question is if I let off the throttle when its roughly 5000 RPM or more it back fires so do I need to raise the needle some more or install the next size down on the jets. I don't have any problems when on the gas just when I back off. My second question is my bike now smells like molting lava. My friend told me his header smelled funny when it was new also but this smells like a nuclear meltdown. I do think a have a very small leak in one of the pipes because I hear a little ticking. The engine runs cool and doesn't over heat and I inspected the header after a ride to see if was red but its just blueing. The mid pipe turned yellow fast but I figured that was normal. Any help would be appreciated. Thanks.