I iq600 Free Member Mar 15, 2009 #1 hey i was wondering if anyone knew what needle jet is one size leaner than the stock 9fh4-57. also does anyone have any idea why my new 800 bikeman motor with stock 600 carbs is running way to richer with stock needle then my 600 did.
hey i was wondering if anyone knew what needle jet is one size leaner than the stock 9fh4-57. also does anyone have any idea why my new 800 bikeman motor with stock 600 carbs is running way to richer with stock needle then my 600 did.