How To Set Your Carb With Mugen’s Adam Drake [VIDEO] Trevor Duncan How To, Product News Comments From Mugen: Adam Drake from Mugen Seiki Racing talks about carburetor settings for the O.S. Speed B2101 engine. Settings: LSN .4-.5 in from flush HSN 1.35 – 1.45 in from flush Mid .1-.15 in from flush Idle .5 gap Visit MugenRacing.com See more posts about Mugen Subscribe today with a Digital Edition subscription or Print + Digital combo! Never miss an issue of RC Car Action! Subscribe today with a Digital Edition subscription or Print + Digital combo!