when i go to mx alot of the 4 strokes smell like they are burning engine oil or do they loose it somewhere else , so if all them 4 strokes are burning 20 to 40 mils whats the diff . they are still creating the dreaded pollution.
yeahh im with that too ,
went to supermoto races alot now and trained together with the 4S also...
but the smell coming off these 4s is sickmaking during riding,
its a combi of very hot fumes, oil burnin smells like ,and burning rubber
got to almost vomit when i hang around in these 4s backs to long...overtaking not often possible even on k5
cuss some of these stinkers making a good 65 bph which is nearby k5