carbs and k&n type filters

[Gil Gallad]

i've been trying to explain to a ts125 owner that k&n type filters are no good and he should use a pod/foam type filter instead. can somebody please explain [in layman's terms] the theory behind this? then i can copy and paste it to him. when it comes to setting carbs up i'm not the greatest  ;D
cheers, gil.

[m in sc]

reversion of the intake process will basically 'bounce back off the back of the hard backed filter and will interrupt the signal creating a flatspot. you either need to run a smooth runner between the bellmouth and the filter, or run an all foam unit. any oem engineered airbox uses the same parameters for this reason