1998-2000 Yamaha WaveRunner GP800 Factory Service Manual, Page 19Get this manual
1SPEC MAINTENANCE SPECIFICATIONS Item Carburetors Type Identification mark Main nozzle Mainjet Pilot jet Low-speed adjusting screw Throttle valve Valve seat size High-speed adjusting screw Trolling speed Reed valves Thickness Reed valve stopper height Reed valve warpage limit Unit Model GP800 Floatless
66E0102
mm (in) 3.0 (0.12) 157.5 (Cyl#1),155 (Cyl#2) 85 (Cyl#1), 90 (Cyl#2) 2-14 114 (Cyl#1), 1-78 14 (Cyl#2) 120 1.2 (0.05)
Turns out mm (in) Turns out rminmm (in) mm (in) mm (in)
1,300 50 0.52 (0.020) 11.1 0.3 (0.44 0.01) 0.2 (0.01)