TRUE BUT YA GOTTA ADMIT GUTTING AND PIPING STOCK MUFFS IS PRETTY MUCH TRIAL AND ERROR. AT LEAST THE SINGLE 7/16 OUTLET STATEMENT IS CONFIRMED. YOU MENTIONED TIMING EARLIER. DID YOU KNOW MOST RYOBI FLYWHEELS HAVE 2 KEY WAYS. NOT SURE IF THEY ARE ALL INITITALLY INSTALLED WITH MORE ADVANCE OR LESS BUT IT'S SOMETHING TO CHECK. HOMEYS CAN RUN WITH NO WOODRUF KEY. USE JB WELD OR LOCKTIGHT. TIGHTEN WELL AND THE FLYWHEEL WILL STAY PUT ON THE TAPER. NOT SURE IT'S BEEN TRIED ON RYOBI BUT THE WORST THAT CAN HAPPEN IS SLIP AND THE ENGINE WILL QUIT FROM RETARDED IGNITION.??IF SOME IS GOOD MORE IS BETTER AND TOO MUCH IS ENOUGH