Doonesbury by Garry Trudeau for July 29, 1972
Transcript:
Mike: Mark! Welcome! Mark: Hi ya, Mike. Ready for the grand adventure? Mike: Sure! Bike working O.K.? Mark: You better believe it! My little two stroke piston port - is sportin' an 8-1 compression ratio but she's a high-revvin' racer in street trim! Mike: You've done this before haven't you? Mark: I confess it.