I'm using all the discs that came in the basic e' series box. Should I be using MORE?

 

all that i know is that the more discs you run the better the flow of the exhaust. but to many discs may hurt performance. call wb and find out

 

From past experience on a two stroke you would want all the discs in and jet occordingly, On a 4 stroke however you still want some backpressure there for it to run properly. I would install all the discs that came and see if you can jet it in to run its best. If you cant get the jetting right, take one disc out and try that, and so on. If I remember the more discs the more top end you'll have and the fewer discs will bring the torque curve down in the rpm range some. I used to change discs depending on tight woods or more open riding.

 

Good info guys! My question to this is: are you running the "s" bend, or the full meg? The performance of these pipes is quite a bit different.
[img]i/expressions/face-icon-small-confused.gif[/img]

 

call WB then tell us what they ahd to say, I am also interested. I might be getting the Pro Meg.

 

i would try running without any discs, it seems to run a lot better for me. i also have a 162 main-jet, K&N, and took the air box lid off.

 

more disc for top end less disc for low end

 

str400ex- ...where did you hear about that? Is it a noticable difference when you remove all the discs?- (for bottom end)- why does it work that way?

 

i had the pipe and the directions told you that although i didnt mess with it to much i just ran all the disc they gave me,since then ive went with a sparks x6 and i like it better