2005 YAMAHA VX air filter

2-4
E
1Air filter case
2Water separator
3Fuel tank
4Battery
5Flush hose connector
Use to flush the engine cooling water pas-
sages.
6Electrical box
Protects electrical components from water.
7Oil tank8Muffler
9Spark plugs/Spark plug caps/Ignition coils
UF1K70.book Page 4 Friday, November 19, 2004 2:42 PM

3-7
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EJU21230
Engine oil level
Check the engine oil level before each
use.
CAUTION:@
When checking the engine oil level on
water, be careful of other watercraft,
boats, swimmers, and obstacles. The
water current and wind can cause the
watercraft to move and lead to a colli-
sion.

When checking the engine oil level on
land, supply water to the cooling water
passages. (See page 4-1 for proce-
dures on supplying water.)

Make sure that the engine has enough
oil but do not overfill it. If there is too
little oil, the engine can be damaged. If
there is too much oil, the air filter can
become saturated with oil, perma-
nently damaging the filter and reduc-
ing engine performance. Follow the
checking procedure carefully.

Make sure that debris and water do not
enter the oil tank filler hole. Debris and
water in the engine oil can cause seri-
ous engine damage.
@
To check the engine oil level:
1. Place the watercraft in a horizontal posi-
tion or launch the watercraft, and then
start the engine.
2. Run the engine at trolling speed for
6 minutes or more, and then stop the
engine.
NOTE:@ If the ambient temperature is 20 °C (68°F)
or less, warm up the engine for an additional
5 minutes.
@
3. Remove the seat. (See page 2-5 for seat
removal and installation procedures.)
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E
EJU18102
Capsized watercraft
If the watercraft capsizes, turn it over
immediately.
Be sure to carefully follow the procedures
below to prevent injury or damage to the
watercraft.
WARNING@ IMPROPER UPRIGHTING CAN CAUSE
INJURY:

Make sure that the engine shut-off
cord is removed from the engine shut-
off switch.

Do not put your hands in the intake
grate.

Watch so you are not hit by the water-
craft as it comes over.
@
CAUTION:@ If the watercraft capsizes, release the
throttle lever immediately. Oil could flow
into the air filter case and the engine
could be damaged.
@
1. Remove the clip from the engine shut-off
switch.
2. Swim to the rear of the watercraft. Pull
the watercraft over with your left hand on
the ride plate while pushing down on the
gunwale with your right hand or foot.
NOTE:@ If the port (left) side of the capsized water-
craft is tilting up, push down on the gunwale
so that the port (left) side is down before
turning the watercraft clockwise.
@
CAUTION:@ Do not turn the watercraft over counter-
clockwise, otherwise water can leak into
the engine, which can result in severe
damage.
@
UF1K70.book Page 27 Friday, November 19, 2004 2:42 PM

E
4
EJU10860
MAINTENANCE AND
CARE
Storage ...................................................... 4-1
Flushing the cooling system .................. 4-1
Lubrication .............................................. 4-3
Fuel system ............................................ 4-4
Battery .................................................... 4-5
Cleaning the watercraft .......................... 4-6
Maintenance and adjustments .............. 4-7
Owner’s/Operator’s Manual and
tool kit ..................................................... 4-8
Periodic maintenance chart ................... 4-9
Inspecting the fuel system ................... 4-10
Changing the engine oil ....................... 4-11
Checking the air filter element ............. 4-13
Inspecting the jet thrust nozzle
angle ..................................................... 4-13
Inspecting the shift cable
(for VX110 Deluxe) .............................. 4-13
Inspecting and adjusting the
throttle cable ......................................... 4-14
Cleaning and adjusting the
spark plugs ........................................... 4-15
Lubrication points ................................. 4-17
Inspecting the battery .......................... 4-19
Adjusting the fuel injection system ...... 4-21
Replacing the fuses ............................. 4-22
Specifications ........................................ 4-23
UF1K70.book Page 1 Friday, November 19, 2004 2:42 PM

4-9
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EJU13550
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.
PMC-F1B1(
) This mark indicates maintenance that you may do yourself.
(
❍) This mark indicates work to be done by a Yamaha dealer.
MAINTENANCE INTERVAL
INITIALTHEREAFTER
EVERYPA G E
10
hours50
hours100
hours100
hours200
hours
ITEM
6
months12
months12
months24
months
Spark plug Inspect, clean, adjust



4-15
Lubrication points Lubricate


4-17
Fuel system Inspect❍❍
4-10
Fuel tank Inspect, clean❍❍
4-10
Trolling speed Inspect❍❍
4-21
Throttle shaft Inspect❍❍
—
Cooling water passages Flush

*1 4-1
Water inlet strainer Inspect, clean❍❍
—
Bilge strainer Clean❍❍
—
Impeller Inspect❍❍
—
Jet thrust nozzle angle Inspect, adjust

/❍

/❍
4-13
Shift cable and mechanism
(VX110 Deluxe)Inspect, adjust
❍❍
4-13
Throttle cable Inspect, adjust❍❍❍
4-14
Stern drain plugs Inspect, replace❍❍
3-9
Battery Inspect ❍❍
4-19
Rubber coupling Inspect❍
—
Engine mount Inspect❍
—
Nuts and bolts Inspect❍❍❍
—
Air filter Inspect, replace❍❍
4-13
Engine oil Replace❍❍❍
4-11
Engine oil filter Replace❍❍
—
Valve clearance Inspect, adjust❍
—
*1: After every use
UF1K70.book Page 9 Friday, November 19, 2004 2:42 PM

4-13
E
EJU21280
Checking the air filter element
Have a Yamaha dealer check and clean
or replace the air filter element every
12 months or every 100 hours of operation.
EJU18891
Inspecting the jet thrust nozzle
angle
Check for smooth operation of the handle-
bars and jet thrust nozzle.
Turn the handlebars as far as possible to
the right and left and check that the differ-
ence of distances A and B between the jet
thrust nozzle and the nozzle is within specifi-
cation.
If steering is stiff or misadjusted, have a
Yamaha dealer service it.
EJU21290
Inspecting the shift cable
(for VX110 Deluxe)
Place the shift lever in the reverse posi-
tion.
Make sure that the reverse gate makes
contact with the stopper 1.
If the reverse gate does not make contact
with the stopper, have a Yamaha dealer ser-
vice it. Difference of A and B:
Maximum 5 mm (0.20 in)
UF1K70.book Page 13 Friday, November 19, 2004 2:42 PM

5-2
E
Engine runs irregu-
larly or stallsFuel Empty Refill as soon as possi-
ble3-4
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 Replace 4-15
Incorrect heat range Replace 4-15
Gap incorrect Adjust 4-15
Spark plug cap Loose Connect properly 4-15
Cracked, torn, or dam-
agedReplace
—
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel injection
systemJet nozzle clogged Have serviced by
Yamaha dealer—
Warning light or
indicator blinksFuel level Empty Refill as soon as possi-
ble3-4
Engine over-
heatedJet intake clogged Clean
5-3
Check engine
warningFaulty sensors Have serviced by
Yamaha dealer—
Wate rcr af t slow or
loses powerYamaha
Security
System
(VX110
Deluxe)Low-RPM mode
selectedSelect normal mode
2-15
Cavitation Jet intake clogged Clean 5-3
Impeller damaged or
wornHave serviced by
Yamaha dealer—
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine2-22
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
2-21
Spark plug Fouled or defective Replace 4-15
Incorrect heat range Replace 4-15
Gap incorrect Adjust 4-15
Spark plug
capsLoose Connect properly
4-15
Electrical wir-
ingLoose connection Tighten or connect
properly—
Fuel Stale or contaminated Have serviced by
Yamaha dealer4-10
Air filter Clogged or oil buildup Have serviced by
Yamaha dealer4-13 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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6-1
E
EJU11250
Index
A
Adjusting the fuel injection system ........ 4-21
Approval label of emission control
certificate ................................................. 1-3
B
Battery ............................................ 3-10, 4-5
Beaching the watercraft ........................ 3-32
Bilge ........................................................ 3-9
Boarding alone ...................................... 3-24
Boarding and starting in deep water ..... 3-24
Boarding with passengers ..................... 3-25
C
Capsized watercraft .............................. 3-27
Changing the engine oil ........................ 4-11
Check engine warning indicator ............ 2-20
Checking the air filter element............... 4-13
Checking the trolling speed ................... 4-21
Cleaning and adjusting the
spark plugs ............................................ 4-15
Cleaning the jet intake and impeller ........ 5-3
Cleaning the watercraft ........................... 4-6
Connecting the jumper cables................. 5-6
Cooling water pilot outlet .............. 2-11, 3-14
Cruising limitations ................................ 1-12
D
Docking the watercraft .......................... 3-32
E
Emergency procedures ........................... 5-3
Emission control information
(For Canada only) ................................... 1-3
Engine break-in ..................................... 3-15
Engine compartment ............................... 3-6
Engine oil ................................................ 3-3
Engine oil level ........................................ 3-7
Engine overheat warning indicator ........ 2-22
Engine serial number .............................. 1-2
Engine shut-off cord (lanyard) ............... 3-13
Engine shut-off switch ............................. 2-9
Engine stop switch .................................. 2-9
Enjoy your watercraft responsibly ......... 1-20F
Filling the fuel tank .................................. 3-4
Fire extinguisher .................................... 3-11
Flushing the cooling system .................... 4-1
Front storage compartment ................... 2-24
Fuel and oil.............................................. 3-1
Fuel level ................................................. 3-6
Fuel meter ............................................. 2-19
Fuel system ............................................. 4-4
Fuel tank ............................................... 4-10
Fuel tank filler cap ................................... 2-6
Fuel warning indicator ........................... 2-21
G
Gasohol ................................................... 3-2
Gasoline .................................................. 3-1
Getting to know your watercraft ............ 3-20
Glove compartment ............................... 2-25
H
Handgrip ................................................ 2-14
Hazard information ................................ 1-16
Hood........................................................ 2-6
Hour meter/Voltmeter ............................ 2-20
Hull and deck .......................................... 3-6
Hull Identification Number (HIN).............. 1-2
I
Identification numbers ............................. 1-1
Important labels ....................................... 1-4
Inspecting and adjusting the throttle
cable...................................................... 4-14
Inspecting the battery ............................ 4-19
Inspecting the fuel system ..................... 4-10
Inspecting the jet thrust nozzle angle .... 4-13
Inspecting the shift cable
(for VX110 Deluxe) ................................ 4-13
J
Jet unit................................................... 3-13
Jumping the battery ................................. 5-5
L
Label location .......................................... 1-4
Launching the watercraft ...................... 3-16
Learning to operate your watercraft ...... 3-20
Leaving the watercraft ........................... 3-19
UF1K70.book Page 1 Friday, November 19, 2004 2:42 PM