AlexThomson1994 Posted April 16, 2013 Share Posted April 16, 2013 I've just changed the exhaust on the ybr 125 fuel injected to a aftermarket Leo Vince one however there was a pipe on the exhaust going towards the air box from what I can make out although I've just left jt hanging as it won't attach to the Leo Vince, it does not effect the performance should I just follow the rubber pipe and disconnect it all Link to comment Share on other sites More sharing options...
Moderator Airhead Posted April 16, 2013 Moderator Share Posted April 16, 2013 yeah if it looks untidy remove it back to the airbox, leave a little on the airbox and plug the open end off Link to comment Share on other sites More sharing options...
Mrweso Posted April 17, 2013 Share Posted April 17, 2013 I've got the same exhaust on my ybr. The pipe is the AIS so just disconnect it. Don't really need to block it off as there's a reed valve. Link to comment Share on other sites More sharing options...
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