Yamaha WaveRunner VX 700, Service Manual

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3-7
MNT
Maintenance
Nut and bolt check
1. Check the engine, deck, and hull for
loose bolts and nuts. Tighten if loose.
See “Specified tightening torque” (2-8).
Jet pump unit
Impeller check
Make sure to remove the battery before
checking the jet pump unit.
1. Remove the jet pump unit. See “Jet
pump unit removal” (6-4).
2. Check the impeller 1 . Replace if dam-
aged.
3. Measure the impeller-to-housing clear-
ance
a
. Measure the impeller housing
inside diameter if the impeller-to-housing
clearance
a
is out of specification. See
“Impeller housing check” (6-8).
4. Install the jet pump unit. See “Jet pump
unit installation” (6-4).
Water inlet strainer check
1. Remove the water inlet strainer cover
1
and water inlet strainer. See “Jet thrust
nozzle, impeller duct, and impeller hous-
ing” (6-5).
2. Check the water inlet strainer mesh
a
.
Clean if contaminated. Replace if
cracked or damaged.
3. Install the water inlet strainer mesh
a
and water inlet strainer cover
1
. See
“Jet thrust nozzle, impeller duct, and
impeller housing” (6-5).
Jet thrust nozzle steering angle check
1. Turn the handlebar lock to lock.
2. Measure distances
a
and
b
. Adjust if
out of specification.
Jet thrust nozzle steering angle adjust-
ment
1. Remove the service lid. See “Front hood”
(8-8).
2. Loosen the locknut
1
.
Impeller-to-housing clearance
a
:
0.35–0.45 mm (0.014–0.018 in)
1
a
Difference of distances
a
and
b
:
Maximum 5 mm (0.2 in)
a
1
a
a a
b
b b