hav an 03 z1000 with the muzzy exhaust map 004. the muffler tip is black around the inside but it pops during deceleration. does that mean its too lean? havnt checked the plugs yet.
:dontknow: not sayin it couldn't happen just repeating what I had been told. Just out of curiosity, how hard are you decelerating? I get a slight pop if I am really aggressively downshifting with my hacked stock exhaust..... (only had it happen once or twice during my ownership of the bike)04 ZED 4-1 full muzzy no pop ,no PC?
Hey notabiker,i am pleased that my MUZZY simi loud pipe is not poping on decell. i down shift a lot but not from high RPM much. i am not saying it never pops, but no sustained loud pop down shifting. on most down shifting i here nothing but a nice exhaust sound.
i am chicken to install a PC because my millage, performance and no pop on decell are just fine without it. no need to stir up a problem i do not have. i still would like to get a dyno pull and a A/F ratio test though.
Wow! Nice website there!
i blocked my cool air injection off over a 1000 miles ago with no problems. all the popping is gone.With my aggressive style of air cleaner I had a serious popping on decel. I read so many suggestions from people on plugging the smog plates on top the valve cover yet also had people say big no no so I've been up in the air. I did use a zip tie for a bit to see the difference and popping was gone. I will be running a dyno tune with a local yet well know guru soon and will ask his professional opinion. As of now I used a small k&n filter and an inline pcv valve as a compromise. If pressure builds up like some say problem solved. If it sucks air and feeds the popping poof stops that also. Seems fine for me now and we will see what billy says at rohm performance machine. He set a world record and built the motor on a death trap I rode daily in high school so ill gladly tell you what he thinks.