1998-2000 Yamaha WaveRunner GP800 Factory Service Manual, Page 34Get this manual
l':grltill_F_uE_L_S_V_ST_E_M_ 2Adjust: Trolling speed Adjustment steps: Remove the exhaust chamber assyand carburetor unit cover assy Turn in the low-speed adjusting screws CD until they are lightly seated Back the low-speed adjusting screws out by the specified number of turnsLow-speed adjusting screw setting: Cyl#1: 2-14 14 turns out Cyl#2: 1-718 114 turns out Reinstall the removed parts Start the engine and allow it to warm up for several minutes Turn the throttle stop screw in or out until the specified trolling speed is obtainedTurning in Turning out Trolling speed is increasedTrolling speed is decreased