2001 Polaris SLX, PRO 1200, Virage TX, Genesis, Virage TXi, Genesis i Personal Watercraft Service Manual, Page 160Get this manual
CarburetonExhaust Mixture Screw Inspection and AdjustmentContinued
NOTE: Synchronize carburetors and adjust idle speed precisely with tachometer (in the water) before adjusting low speed mixture screws4Turn each low speed screw in clockwise to lightly seat, then back each out the specified number of turnsSee charts at the beginning of this sectionNOTE: This is base setting onlyFinal adjustment must be made by warming the engine to operating temperature, and adjusting low speed screws in (to lean) or out (to richen) mixture until smooth idle and good throttle response is obtainedIMPORTANT: Prior to performing any adjustments to carburetors check the following: Verify that no water is present in the fuel systemCheck the water trap for presence of water Verify all fuel and vent lines are routed and secured properly Verify aU seal and gaskets are in good condition (no air leaks present) Check engine compression (see engine section) Verify proper fuel flow (i.efuel flow through shut off valve passages, tank, lines, and filters) Synchronize carburetors; inspect throttle plates (butterfly) for damage