MAN " SEA FOAM " IS THE TICKET ! GOD SENT ! AFTER A YEAR & 3,000 MILES OF ONCE IN A WHILE SPITTING BACK & SURGING AT STEADY SPEEDS , 9 OZ. SEA FOAM IN THE FIRST TANK & 6 OZ. IN THE SECOND TANK , BIKE RUNS GREAT !!!!!!!!!!!!! I HAVE NOW GONE OVER 400 MILES & THE BIKE HAS'NT SPIT - SPUTTERED - OR...