q: how far should i adjust the sprocket cam timing to achieve optimum output efficiency?  a: just a bawfraction to the left
glaswegian expression, derrived from 'a fraction of a baw-hair', ( see bawhair ) to describe a very minute increment
"q: how far should i adjust the sprocket cam timing to achieve optimum output efficiency?  a: just a bawfraction to the left" What is the definition of "bawfraction"?