shammon Posted July 11, 2015 Posted July 11, 2015 Hi,have a 125cc Superbyke RFX, its ideal for getting me to and from work and saves me having to use my bigger bike. I think it might be restricted? it has a strange valve on the down pipe. can anyone tell me if this a restrictor and if so can i remove it?Thanks.http://i7.photobucket.com/albums/y277/shammon/Mobile%20Uploads/20150711_112139_zpsylzedfez.jpg Quote
Guest Posted July 13, 2015 Posted July 13, 2015 Hi,have a 125cc Superbyke RFX, its ideal for getting me to and from work and saves me having to use my bigger bike. I think it might be restricted? it has a strange valve on the down pipe. can anyone tell me if this a restrictor and if so can i remove it?Thanks.http://i7.photobucket.com/albums/y277/shammon/Mobile%20Uploads/20150711_112139_zpsylzedfez.jpgThat valve leads to the airbox somwwhere. As the engine is revved , it pulls fresh air in to exhaust to make emissions cleaner (as part of Euro 3 i believe? Or just for it to pass MOT)My bike has a yamaha engine but i took it off to make the bike a *wee bit* more responsive on throttle lol.Attach the pipe back or remove it or block it completely. Most MOT testers wont bat an eye lid over that. Quote
Ricky Posted July 13, 2015 Posted July 13, 2015 I thought it was an EGR valve which reburns exhaust gasses? Quote
Guest Posted July 13, 2015 Posted July 13, 2015 I thought it was an EGR valve which reburns exhaust gasses? Thats for cars lol or 2 stroke bikes Quote
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