Page 29 of 131
2-4
E
1Spark plugs/Spark plug caps
2Electrical box
Protects electrical components from water.
3Flush hose connector
Use to flush the engine cooling water pas-
sages.
4Spark plug lead
5Muffler
6Fuel filter
7Fuel tank8Oil tank
9Battery
Page 53 of 131

2-28
E
EJU00717a
Oil warning indicator
If the oil remaining in the tank drops to
about 1.4 L (0.37 US gal, 0.31 Imp gal) or
the oil filter is clogged, the lowest oil level
segment, the oil warning indicator, “OIL” and
the warning light begin to blink. The buzzer
also starts sounding intermittently.
If the oil warning indicator begins to blink,
refill with engine oil as soon as possible.
NOTE:
If the warning indicator blinks with adequate
oil in the tank, check the oil filter for clog-
ging.
EJU00718a
Engine overheat warning
indicator
If the engine starts to overheat, the engine
overheat warning indicator, “W.TEMP” and
the warning light begin to blink. The buzzer
also starts sounding intermittently.
If the engine continues to be operated at
higher speed after the warning system indi-
cators have come on intermittently, the warn-
ing indicator, “W.TEMP” and the warning
light will change to being on continuously.
Also, the engine will stop and the buzzer will
sound continuously. Refer to “Engine over-
heat warning system” on page 2-17.
NOTE:
When the warnings overlap each other, their
priority is as follows.
1. Final overheat
2. Initial overheat
3. Oil
4. Fuel
5. Battery
Page 101 of 131

4-8
E
EJU00536
Periodic maintenance chart
The following chart gives general guidelines for periodic maintenance. However, depend-
ing on your operating conditions maintenance may need to be performed more frequently.
(
●) This mark indicates maintenance that you may do yourself.
(
❍) This mark indicates work to be done by a Yamaha dealer.
*1: Grease capacity: 33.0–35.0 cm3 (1.11–1.18 oz)
*2: Grease capacity: 6.0–8.0 cm3 (0.20–0.27 oz)
MAINTENANCE INTERVAL INITIALTHEREAFTER
EVERYPA G E
10
hours50
hours100
hours100
hours200
hours
ITEM
3
months6
months6
months12
months
Spark plug Inspect, clean, adjust●●●●
4-14
Lubrication points Lubricate●●
4-15
Intermediate housing Lubricate❍
*1●
*2●
*2 4-18
Fuel system Inspect❍❍
4-9
Fuel filter Check, replace❍❍
4-10
Fuel tank Clean❍
4-10
Oil injection system Inspect, clean❍❍
4-11
Trolling speed Adjust●●
4-21
Carburetor throttle shaft Inspect❍❍
—
Cooling water passages Flush
●
(after
ever y
use)4-1
Bilge strainer Clean●●●
—
Impeller Inspect●●●
—
Steering cable Inspect●●
4-12
Steering master Inspect❍❍❍
—
QSTS mechanism Inspect●●
4-13
Shift cable and mechanism Inspect, adjust●●
4-12
Throttle cable Inspect, adjust●●
4-12
Choke cable Inspect, adjust●●
4-18
Stern drain plugs Inspect, replace●
3-7
Battery Inspect
●(inspect
fluid level
before
ever y
use)
4-19
Rubber coupling Inspect❍
—
Nuts and bolts Retighten❍❍❍
—
Page 102 of 131
4-9
E
EJU00537
Inspecting the fuel system
WARNING
Gasoline and its vapors are highly flam-
mable and explosive.
Check the fuel system for leaks, cracks,
or malfunctions. If any problem is found, do
the necessary repair or replacement as
required. If repair is necessary, consult a
Yamaha dealer.
Check:
●Carburetor for leakage.
●Fuel pump for malfunction or leakage.
●Fuel tank for water or dirt.
●Fuel tank for damage, cracks or leakage.
●Fuel hose joint for leakage.
●Fuel hose for cracks or other damage.
●Fuel filter for leakage.
●Fuel cock for leakage.
●Air vent check valve for leakage.
●Fuel tank filler cap for damage.
WARNING
Failure to check for and repair any fuel
leakage may result in fire or explosion.
Page 103 of 131
4-10
E
EJU00538
Fuel filter
This watercraft is equipped with a one-
piece, disposable fuel filter 1. The fuel filter
should be replaced once a year or after
every 200 hours of operation, or if water is
found in the filter. Have a Yamaha dealer
replace the fuel filter if necessary.
WARNING
Do not try to replace the fuel filter your-
self. An incorrectly installed filter can
leak gasoline, which could lead to fire or
explosion. If necessary, have a Yamaha
dealer replace the fuel filter.
EJU00540
Fuel tank
Check the fuel tank 1 for leakage or
water in the tank. If water is found in the fuel
system or if the fuel tank needs to be
cleaned have a Yamaha dealer service the
watercraft.
Page 118 of 131

5-1
E
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 —
Page 119 of 131

5-2
E
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
Page 120 of 131
5-3
E
Wate rcr af t slow or
loses powerCavitation Jet intake clogged Clean 5-4
Impeller damaged or
wornHave serviced by
Yamaha dealer—
Engine over-
heatedJet intake clogged Clean
5-4
Fuel filter Clogged 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
capsLoose Connect properly
4-14
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel Stale or contaminated Have serviced by
Yamaha dealer4-10
Bilge Water in bilge Drain 3-7 TROUBLE POSSIBLE CAUSE REMEDY PAGE