4. Fuel Injection System
Check the fuel injection system.
Is the fuel injection system normal?
NO – Faulty fuel injection system
POOR PERFORMANCE AT HIGH SPEED
1. Ignition Timing
Check the ignition timing.
Is the ignition timing correct?
NO – • Faulty engine control module (ECM)
• Faulty ignition pulse generator
YES – GO TO STEP 2.
2. Fuel Injection System
Check the fuel injection system.
Is the fuel injection system normal?
NO – Faulty fuel injection system
YES – GO TO STEP 3.
TROUBLESHOOTING
21-5
3. Valve Timing
Check the valve timing.
Is the valve timing correct?
NO – Camshafts not installed properly
YES – GO TO STEP 4.
4. Valve Spring
Check the valve springs.
Are the valve springs fatigued?
YES – Faulty valve spring
COMPONENT LOCATION
SERVICE INFORMATION
COMBINATION METER
SPEEDOMETER/SPEED SENSOR
TACHOMETER
FUEL GAUGE/FUEL LEVEL SENSOR
INDICATORS
HANDLEBAR SWITCH
MAIN RELAY
OFF-THROTTLE STEERING SYSTEM
SERVICE INFORMATION
GENERAL
• Use an electric heating element to heat the coolant mixture for the engine coolant temperature sensor inspection. Keep
flammable materials away from the electric heating element. Wear protective clothing, insulated gloves and eye protection.
• Check the battery condition before performing any inspection that requires proper battery voltage.
• A continuity test can be made with the switches installed on the watercraft.
• The following color codes are used throughout this section.
SPECIFICATIONS
TORQUE VALUE
TOOLS
Bu = Blue G = Green Lg = Light Green R = Red
Bl = Black Gr = Gray O = Orange W = White
Br = Brown Lb = Light Blue P = Pink Y = Yellow
ITEM SPECIFICATIONS
Bulb Warning indicator LED
Fuse Main fuse 30 A
Sub fuse 7.5 A X 3, 5 A X 2
Tachometer peak voltage 10.5 V minimum
Off-throttle steering limit switch nut 2.9 N·m (0.3 kgf·m, 2.2 lbf·ft)
Speed sensor wire setting nut 4.9 N·m (0.5 kgf·m, 3.6 lbf·ft)
WARNING BUZZER
Fit the safety lanyard clip to the base of the engine
stop switch.
Connect the Green/yellow and Green wire terminals
of the 10P green connector with a jumper wire.
The warning buzzer should sound.
If the warning buzzer does not sound, check the
power input line (page 19-5).
If the power input line is normal, check the following:
– open circuit in the Green/yellow wire between
the combination meter and warning buzzer
– faulty warning buzzer
– open circuit in the Red/blue wire between the
warning buzzer and junction connector
SPEEDOMETER/SPEED SENSOR
SYSTEM INSPECTION
Remove the passenger grab rail page 3-5.
Disconnect the speed sensor 2P yellow connector.
Fit the safety lanyard clip to the base of the engine
stop switch.
Measure the voltage between the Blue/white (+) and
Black/orange (–) wire terminals of the wire harness
side connector.
There should be battery voltage.
• If there is no voltage, check the Blue/white and
Black/orange wires. If the wires are OK, replace
the combination meter.
• If there is battery voltage, replace the speed sensor
with a known-good one and check the speedometer
operation.
SPEED SENSOR REMOVAL/
INSTALLATION
Remove the jet pump (page 14-8).
Disconnect the speed sensor 2P yellow connector.
Remove the wire setting nut, wire holder and the
speed sensor.
Insert the speed sensor 2P connector through the
wire holder hole.
Install the wire holder into the hole and tighten it.
Align the locating mark on the wire with the wire
holder end, install the wire setting nut and tighten it.
Connect the speed sensor 2P connector.
Install the jet pump page 14-24.
TACHOMETER
SYSTEM INSPECTION
Remove the storage box page 3-8.
Release the wire bands.
Disconnect the combination meter 8P gray connector.
FUEL GAUGE/FUEL LEVEL SENSOR
SYSTEM INSPECTION
Remove the storage box page 3-8.
Disconnect the fuel pump 5P connector.
Fit the safety lanyard clip to the base of the engine
stop switch and check the fuel gauge.
All segments and low fuel indicator should blink
and the warning buzzer should beep.
Pull the safety lanyard clip off of the engine stop
switch.
Connect the Gray/white and Gray/black wire terminal
of the 5P connector with a jumper wire.
Fit the safety lanyard clip to the base of the engine
stop switch and check the fuel gauge.
All segments and low fuel indicator should blink
and the warning buzzer should beep.
If the fuel gauge, low fuel indicator and warning
buzzer do not function properly, replace the combination
meter (page 19-4).
Remove the fuel pump assembly page 8-82.
Connect the fuel pump 5P connector.
With the fuel level sensor float at the top (FULL)
position, fit the safety lanyard clip to the base of the
engine stop switch and check the fuel gauge