2001-2005 Yamaha WaveRunner GP800R Factory Service Manual, Page 283Get this manual
E Turn the grip to or and the bow will go down while the watercraft is on planeBow down puts more of the bow in the waterThis gives the watercraft more "hook," which enhances turning performanceThis position will also help the watercraft get up on plane more quicklyAt higher speeds, however, the watercraft will have greater tendency to "bow steer" and follow waves and wakes in the waterFuel economy and maximum speed are also reduced