Yamaha WaveRunner VX 700 Service Manual page 176

TRBL
SHTG
Symptom 1: Poor performance
Symptom 2
Watercraft cannot
reach high speeds
9-5
Troubleshooting
Cause
Jet pump unit malfunction
Water entered hull
Checking step
Check the impeller, impeller duct,
and intake grate.
Check the drain plugs and O-rings
for damage.
Check the cooling water hoses for
damage.
Check the water lock and rubber
hoses for damage.
Check the exterior of the hull for
damage.
Check the bilge hose, bilge
strainer, and joint.
See
page
6-6
8-29
2-13
8-24
—
3-9