Page 27 of 131
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1Fuel tank filler cap
2Rope holes
3Intake grate
Prevents debris from getting into the jet pump.
4Speed sensor
5Cleat
Use to attach a towrope for pulling water-skier,
or a rope for mooring the watercraft.
6Handgrip
Use for support when boarding the watercraft
or when seated facing rearward and acting as
a spotter for a water-skier.7Reverse gate
Controls direction of jet thrust when in reverse.
8Stern drain plugs
Use to drain water in the bilge when the water-
craft is on dry land.
9Jet thrust nozzle
Changes the direction of jet thrust according
to handlebar position.
0Ride plate 
         
        
        
     
        
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EJU00595
Troubleshooting
If you have any trouble with your watercraft, use this section to check for the possible
cause.
If you cannot find the cause, or if the procedure for replacement or repair is not described
in this Owner’s/Operator’s Manual, have a Yamaha dealer perform the necessary service.
EJU00596a
Troubleshooting chart
TROUBLE POSSIBLE CAUSE REMEDY PAGE
Engine does not 
startStarter motor does not turn over
Multifunction 
meter“LOCK” mode selected Select “START” mode
2-22
Engine shut-
off switchClip not in place Install clip
2-10
Fuse Burned out Replace the fuse and 
check wiring4-22
Battery Run down Recharge 4-20
Poor terminal connec-
tionsTighten as required
4-20
Terminal corroded Clean 4-4
Starter motor Faulty Have serviced by 
Yamaha dealer—
Starter motor turns over
Fuel cock Turned to “OFF” Turn the fuel cock to 
“ON”2-9
Fuel Empty Refill as soon as possi-
ble3-3
Stale or contaminated Have serviced by 
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by 
Yamaha dealer4-10
Spark plug Fouled or defective Clean or replace 4-14
Spark plug cap Not connected or loose Connect properly 4-14
Crankcase Filled with water Crank engine with plug 
out until clean5-8
Fuel filter Clogged or water 
pooledHave serviced by 
Yamaha dealer4-10
Choke Knob moves back on 
its ownTighten the choke knob 
adjusting nut4-18
Water 
temperature 
sensorFailed Have serviced by 
Yamaha dealer — 
         
        
        
     
        
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Engine runs irregu-
larly or stallsFuel Empty Refill as soon as possi-
ble3-3
Stale or contaminated Have serviced by 
Yamaha dealer4-10
Choke Knob pulled Push fully in 2-10
Fuel filter Clogged or water 
pooledHave serviced by 
Yamaha dealer4-10
Fuel tank Water or dirt present Have serviced by 
Yamaha dealer4-10
Spark plug Fouled or defective Replace 4-14
Incorrect heat range Replace 4-14
Gap incorrect Adjust 4-14
Spark plug cap Loose Connect properly 4-14
Cracked, torn, or dam-
agedReplace
—
Electrical wir-
ingLoose connection Tighten or connect 
properly—
Carburetor Incorrect idle adjust-
mentAdjust idle
4-21
Clogged Have serviced by 
Yamaha dealer—
Warning light or 
indicator blinksFuel level Empty Refill as soon as possi-
ble3-3
Engine oil level Empty Refill immediately 3-4
Oil filter clogged Clean 4-11
Engine over-
heatedJet intake clogged  Clean 5-4
Water temperature 
sensor failedHave serviced by 
Yamaha dealer—
Low battery 
voltageBattery voltage low Charge 4-20
Battery terminal con-
nected wrongConnect properly
4-20 TROUBLE POSSIBLE CAUSE REMEDY PAGE