2001-2005 Yamaha WaveRunner GP800R Factory Service Manual, Page 358Get this manual
E 2Remove any weeds or debris from around the drive shaft, impeller, pump housing, and jet thrust nozzleIf debris is difficult to remove, consult your Yamaha dealer
CAUTION:
Always avoid operating your watercraft in areas where weed growth is thickIf traveling in weeded areas is unavoidable, operate the engine alternately at partial throttle and full throttleWeeds tend to accumulate more at steady speed and at trolling speedIf weeds clog the intake or impeller area and cause cavitation, follow the cleaning procedure above
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