Been watching youtube videos of trial bike riding for a while now and taken the plunge! Got a SCORPA 250 1999! 
Few problems im trying to find out the best way to fix one of which is a silly loud aftermarket exhaust so its VERY loud is the best way to repack the muffler? not finding many exhausts on machinemart/ ebay!  and the same with fork seals, easy job if i can find a set >.< 
from what i understand i have the last of the rotax engined ones if that helps!  Also how do I adjust idle and mixture? Ie which screw does which! 
(is the larger screw the idle?)  
would help if i knew the model name haha 
and how easy are fairings to come by? 
Thanks