2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 430Get this manual

2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 430

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CARBURETOR TUNING Main jet selection chart Spark plug color Light tan or gray Dry black or fluffy deposits White or light gray Diagnosis Carburetors are tuned properlyMixture is too richMixture is too