Yamaha WaveRunner - Impeller Inspection; Water Inlet Strainer Inspection

3-27
E
INSP
ADJ
JET PUMP UNIT
JET PUMP UNIT
Impeller inspection
1. Check:
• Impeller
1
Damage/wear
→
Replace.
Nicks/scratches
→
File or grind.
2. Measure:
• Impeller-to-housing clearance
a
Out of specification
→
Replace.
Maximum impeller-to-housing
clearance:
0.35–0.45 mm (0.0138–0.0177 in)
Measurement steps:
• Remove the battery leads.
• Remove the intake grate and intake duct.
Refer to “INTAKE GRATE, RIDE PLATE,
AND INTAKE DUCT” in Chapter 6.
• Measure the clearance at each impeller
blade as shown (a total of three measure-
ments).
• Install the intake duct and intake grate.
Refer to “INTAKE GRATE, RIDE PLATE,
AND INTAKE DUCT” in Chapter 6.
• Install the battery leads.
Water inlet strainer inspection
1. Inspect:
• Water inlet strainer
Contaminants
→
Clean.
Cracks/damage
→
Replace.
Inspection steps:
• Remove the ride plate.
Refer to “INTAKE GRATE, RIDE PLATE,
AND INTAKE DUCT” in Chapter 6.
• Remove the rubber plate.
Refer to “JET PUMP UNIT” in Chapter 6.
• Remove the water inlet cover
1
.
• Inspect the water inlet strainer mesh
a
.
• Install the water inlet cover.
• Install the rubber plate.
Refer to “JET PUMP UNIT” in Chapter 6.
• Install the ride plate.
Refer to “INTAKE GRATE, RIDE PLATE,
AND INTAKE DUCT” in Chapter 6.