1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 125Get this manual
FUEL SYSTEMCARBURETION Carburetor Adjustment and ServiceKeihin IMPORTANT: 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 all 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 damageIII