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3-18
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5. If the “LOCK” mode was chosen previ-
ously, choose the “START” mode before
starting the engine. (See pages 2-20 to
2-21 for selecting “PA D L O C” mode.)
NOTE:@ If the initial setting of the PADLOC has not
been done, the “START” mode is auto-
matically selected.
If you have previously chosen “LOCK”
mode, the engine will not start unless the
correct code is entered. This selects the
“START” mode.
@
6. While lightly squeezing the throttle lever,
push the start switch (green button).
WARNING@ On this watercraft, the engine is con-
nected directly to the jet pump. Starting
the engine immediately generates some
thrust. Apply only enough throttle to
keep the engine running.
@
7. Release the start switch as soon as the
engine starts to run.
CAUTION:@ Never push the start switch while the
engine is running.
Do not operate the start switch for
more than 5 seconds, otherwise the
battery will be discharged and the
engine will not start. Also, the starter
motor may be damaged. If the engine
does not start in 5 seconds, release
the start switch, wait 15 seconds, and
try again.
@
8. After the engine has warmed up, push
the choke knob in to its original position.
NOTE:@ If the choke knob is left pulled out, the
engine will stall.
@
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4
EJU01086
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
Inspecting the oil injection system ....... 4-12
Inspecting the steering cable ............... 4-13
Inspecting the shift cable ..................... 4-13
Inspecting and adjusting the
throttle cable ......................................... 4-13
Inspecting the QSTS mechanism ....... 4-14
Cleaning and adjusting the
spark plugs ........................................... 4-15
Lubrication points ................................. 4-16
Adjusting the choke cable .................... 4-19
Inspecting the battery .......................... 4-20
Adjusting the carburetor ...................... 4-22
Replacing the fuse ............................... 4-23
Bleeding the oil injection pump ............ 4-23
Specifications ........................................ 4-24
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4-5
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EJU01092
Battery
If the watercraft is not used for a month or
more, disconnect the (–) battery cable first,
and then the (+) cable and breather pipe,
and next remove the battery from the craft.
Clean the battery casing using fresh
water.
If the battery terminals are dirty or cor-
roded, clean the mating surfaces on the ter-
minals for the battery cables using the wiring
brush or equivalents.
Recharge the battery, and then store it in
a cool and dark place.
Apply the Yamaha marine grease/Yamaha
grease A to the battery terminals.
Recharge the battery periodically at least
2 months because a battery will discharge
electricity by itself while storing.
CAUTION:@ The battery may be impossible to use
again if you store it for a longer time
without recharging. Recharge the battery
periodically.
@
NOTE:@ The battery condition can be found by
checking the specific gravity of the electro-
lyte. However, you can also know the battery
condition roughly by measuring the voltage
at both battery terminals. Recharge the bat-
tery if the voltage is 12 volts or less.
Yamaha recommend checking the specific
gravity of the electrolyte and charging bat-
tery by a Yamaha dealer or a battery dealer.
If you maintain the battery yourself, read
carefully the instructions for the tool and
machine before maintenance.
Specific gravity of electrolyte
(for reference):
1.28 at 20 °C (68 °F)
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EJU01358
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)
*3: Grease capacity: 8.0 cm3 (0.27 oz)
*4: Grease capacity: 2.0 cm3 (0.07 oz)
MAINTENANCE INTERVAL INITIALTHEREAFTER
EVERYPA G E
10
hours50
hours100
hours100
hours200
hours
ITEM
3
months6
months6
months12
months
Spark plug Inspect, clean, adjust
4-15
Lubrication points Lubricate
4-16
Intermediate housing Lubricate❍
*1
*2
*2 4-19
Starter motor idle gear Lubricate❍
*3
*4
*4 4-19
Fuel system Inspect❍❍
4-10
Fuel filter Check, replace❍❍
4-11
Fuel tank Clean❍
4-11
Oil injection system Inspect, clean❍❍
—
Carburetor setting Inspect, adjust❍❍❍
4-22
Trolling speed Adjust
4-22
Carburetor throttle shaft Inspect❍❍
—
Cooling water passages Flush
(after
ever y
use)4-1
Bilge strainer Clean
—
Impeller Inspect
5-4
Steering cable Inspect
4-13
Steering master Inspect❍❍❍
—
QSTS mechanism Inspect
4-14
Shift cable and mechanism Inspect, adjust
4-13
Throttle cable Inspect, adjust
4-13
Choke cable Inspect, adjust
4-19
Stern drain plugs Inspect, replace
3-7
Battery Inspect
(inspect
fluid level
before
ever y
use)
4-20
Rubber coupling Inspect❍
—
Nuts and bolts Tighten❍❍❍
—
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4-20
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EJU01108
Inspecting the battery
Check the level of the battery electrolyte
and make sure the leads are secure.
WARNING@ Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Elec-
trolyte contains sulfuric acid. Avoid
contact with skin, eyes or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg or vegetable oil. Call physi-
cian immediately.
Eyes: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes, etc., well away.
If using or charging the battery in an
enclosed space, make sure that it is well
ventilated. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHIL-
DREN.
@
CAUTION:@ Be careful not to place the battery on its
side.
Make sure to remove the battery from the
battery compartment when adding bat-
tery electrolyte or charging the battery.
When checking the battery, make sure
the breather hose is connected to the
battery and not obstructed.
@
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4-21
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To replenish the battery:
1. Make sure that the electrolyte level is
between the upper 1 and lower 2 level
marks.
2. Refill the battery with distilled water if
necessary.
CAUTION:@ Normal tap water contains minerals that
are harmful to a battery. Use only dis-
tilled water for replenishing the battery.
@
To recharge the battery:
CAUTION:@ Do not attempt to charge a battery hast-
ily. Battery life may be shorter.
@
Yamaha recommend charging battery by
a Yamaha dealer or a battery dealer. If you
charge the battery yourself, read the battery
charger instructions carefully before charg-
ing and follow the points below.
1. Remove all caps from the battery cell.
2. Add distilled water to the specified level if
the electrolyte level is low.
3. Set the charging rate to 1.9 ampere and
charge the battery slowly until the explo-
sive gases become coming out vigor-
ously from battery cells.
To connect the battery terminals:
1. Make sure that the connections are cor-
rect when you insert the battery in the
watercraft.
2. Make sure that the breather hose is
properly connected and that it is not
damaged or obstructed.
3. Make sure that the battery is securely
held in place.
1Positive (+): Red lead
2Negative (–): Black lead
3Breather hose
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4-24
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EJU01366
Specifications
MODEL
ITEMUnit SUV1200
WATERCRAFT CAPACITY
Maximum people on board Number of people 4
Maximum load capacity kg (lb) 300 (662)
DIMENSIONS
Length mm (in) 3,850 (151.6)
Width mm (in) 1,510 (59.4)
Height mm (in) 1,140 (44.9)
Dry weight kg (lb) 370 (816)
PERFORMANCE
Maximum output kW (PS) @ r/min 99.3 (135)@ 6,750
Maximum fuel consumption L/h (US gal/h, Imp gal/h) 53.0 (14.0, 11.7)
Cruising range at full throttle hr. 1.3
Trolling speed r/min 1,250–1,350
ENGINE
Engine type 2-stroke
Number of cylinders 3
Engine displacement
cm
3 (cu in)1,131 (69.02)
Bore & stroke mm (in) 84 ×
68 (3.31 ×
2.68)
Compression ratio 6.0:1
Lubrication system Oil injection
Cooling system Water cooled
Starting system Electric starter
Ignition system Digital CDI
Spark plug BR8HS (NGK)
Spark plug gap mm (in) 0.6–0.7 (0.024–0.028)
Battery capacity V-AH 12-19
Charging system Flywheel magneto
DRIVE UNIT
Propulsion system Jet pump
Jet pump type Axial flow, single stage
Impeller rotation Counterclockwise (viewed from rear)
Transmission Direct drive from engine
Jet thrust nozzle angle Degree 26 + 26
Trim nozzle angle Degree -7, -2, 3, 8, 13
FUEL AND OIL
Recommended fuel Regular unleaded gasoline
Minimum octane rating PON
RON86
90
Recommended engine oil YAMALUBE 2-W, or an equivalent NMMA-
certified TC-W3 marine oil
Fuel tank capacity
Total L (US gal, Imp gal) 70 (18.5, 15.4)
Reserve L (US gal, Imp gal) 12 (3.17, 2.64)
Oil tank capacity L (US gal, Imp gal) 5.5 (1.45, 1.21)
UGU571.book Page 24 Tuesday, July 10, 2001 2:25 PM
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5
EJU01115
TROUBLESHOOTING
AND EMERGENCY
PROCEDURES
Troubleshooting ...................................... 5-1
Troubleshooting chart ............................ 5-1
Emergency procedures .......................... 5-4
Cleaning the jet intake and impeller ...... 5-4
Jumping the battery ............................... 5-5
Towing the watercraft ............................ 5-7
Submerged watercraft ........................... 5-8
UGU571.book Page 1 Tuesday, July 10, 2001 2:25 PM