Hi all, i have a 2007 ttr 250, ive removed the airbox for cleaning and the little box that is siliconed on the caburettor/airbox boot was all split around the silicone and taking dust. i have removed the box and it had bits of old silicone sediments etc.., question i need answered, does the ttr need this box on to run properly? can the hole where it sits just be plugged?
The resonator or boost bottle seems to be a "good thing" so best try and fix it if you can - see http://ttr250.activeboard.com/t51169250/yamaha-energy-induction-system-yeis-boost-bottle-air-chamber/ for more info