speedfight 2 50cc?

yeah m ,they do suffer from that alot dont they,i have seen a fair few the last few years with the cats falling out of there holes they are pushed into and rolling about inside getting all battered and blocking the gas flow badly also the baffle packing blockes up the little holes in the baffles aswell,i even had an aprilia rs 125 do it the other day and a peugeot ludix blaster this week ,gone are the days that a blocked exhaust was due to carbon from burnt 2 stroke oil!i just cut them open and mig them back up again once ive gutted them no more probs then.

adam bike doctor
May 2010

race or normal exhaust, if normal they are prone for the cats collapsing in on themselves contracting and not letting the gas escape, this will normally make the fumes exiting, much more hotter than normal(yes there is a difference) check the output with the palm of your hand, be careful, anotherway is to use a digital thermo gun, but if you dont have one of these handy then you will just have to judge by taking the thing off

m
April 2010