fastrthnu Posted February 4, 2007 Report Posted February 4, 2007 (edited) whats the gap measurment for a stock motor/gas mix? snot in my manual. well .030 over. not sure of comp ratio Edited February 4, 2007 by fastrthnu Quote
GEEZR Posted February 4, 2007 Report Posted February 4, 2007 spark plug gap: .030 gas/mix : 32: 1 works for me. :thumbsup: Quote
jet mech Posted February 4, 2007 Report Posted February 4, 2007 your gap range is 0.7-0.8 mm (0.028-0.31 in) NGK BR8ES your mix ratio depends highly on the oil you are running my friends and I all run Amsoil Sabor @ 80:1 with pump gas yamaha suggests yamalube R 24:1 or castrol R30,A545,or A747 @20:1 I have never used any of that but it sounds a little heavy its just what the book says Quote
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