2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 429Get this manual

2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 429

CARBURETOR TUNING INSP ADJ A Standard main jet Main jet whose diameter is 10 smaller than standard Main jet whose diameter
is operatedRegularly clean the air filter and keep it free from obstructions Low-speed tuning The carburetors are built so
that low speed tuning can be done by adjusting the throttle stop screw 1 CAUTION: Never run the engine without the air filter
case installedSevere engine damage may result1Set the engine idle speed by turning the throttle stop screw in (to increase
engine speed) or out (to decrease engine speed)Engine idle speed: 1,3001,500 rmin 2If low-speed performance is still poor