engine oil YAMAHA GP1800 2017 User Guide

Pre-operation checks
59
EJU32424Water separator check
Make sure that no water has collected in the
water separator. If water has collected in the
water separator, drain it. (See page 29 for in-
formation on draining the water separator.)
EJU40182Engine unit check
Check the exterior of the engine unit for dam-
age or other problem.
EJU36886Engine oil level check
Make sure that the engine oil level is between
the minimum and maximum level marks onthe dipstick. (See page 51 for information on
checking the engine oil level.)
EJU32456Bilge water check
Make sure that no bilge water has collected in
the engine compartment. If bilge water has
collected in the engine compartment, drain it.
(See page 53 for information on draining the
bilge water.)
EJU32485Battery checks
Make sure that the battery terminals and
breather hose are not damaged and that the
battery leads and breather hose are connect-
ed properly. WARNING! Fire or explosion
could result if the breather hose is dam-
1Water separator
1
1Dipstick
1Maximum level mark
2Minimum level mark
1
1
2
UF3P70E0.book Page 59 Friday, September 2, 2016 11:32 AM

Maintenance
85
EJU43101Periodic maintenance chart
The periodic maintenance chart gives general guidelines for periodic maintenance. Have a
Yamaha dealer perform the checks in the following chart. However, maintenance may need
to be performed more frequently depending on your operating conditions. If you have any
questions, consult a Yamaha dealer.
This “√” mark indicates items to be checked and serviced by a Yamaha dealer.
Item OperationInitial Thereafter every
Page
10 hours50 hours
or 12
months
*1100
hours or
12
months
*1200
hours or
24
months
*1
Fuel lineCheck fuel hoses and
clamps√—
Fuel filler cap/Wa-
ter separatorCheck O-rings for cracks
and deformation√—
Fuel tankCheck installation and
straps√—
Water inlet strainerCheck for clogs and dam-
age√—
Cooling water hos-
esCheck for damage and
leakage, and check
clamps√—
Engine oilReplace√√87
Oil filterReplace√87
Intermediate hous-
ingLubricate√—
Spark plugsCheck√√—
BatteryCheck state of charge,
terminals, bands, and
breather hose√—
Battery leadsCheck terminals√—
Steering masterCheck operation and for
looseness√√—
Steering cableCheck exterior and con-
nections, and lubricate√—
Electric trim rodCheck exterior and con-
nections, and lubricate√—
Shift rod and re-
verse gate Check exterior and con-
nections, and lubricate√—
Air filter elementCheck for damage and
dirt√—
Air intake hosesCheck for damage, and
check clamps√
—
Throttle bodyLubricate throttle valve√—
UF3P70E0.book Page 85 Friday, September 2, 2016 11:32 AM

Maintenance
87
EJU36943Engine oil and oil filter
WARNING
EWJ00341
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming in con-
tact with or getting any engine oil on your
clothes could result in burns.
NOTICE
ECJ00992
Do not run the engine with too much or not
enough oil in the engine, otherwise the en-
gine could be damaged.
It is recommended to have a Yamaha dealer
change the engine oil and the engine oil filter.
However, if you choose to change the oil and
filter on your own, consult a Yamaha dealer.
UF3P70E0.book Page 87 Friday, September 2, 2016 11:32 AM

Specifications
88
EJU34543
Specifications
Watercraft capacity:
Maximum people on board:
3 person
Maximum load capacity:
240 kg (530 lb)
Dimensions and weight:
Length:
3350 mm (131.9 in)
Width:
1220 mm (48.0 in)
Height:
1190 mm (46.9 in)
Dry weight:
349 kg (769 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
183.9 kW at 7500 r/min
Maximum fuel consumption:
83.7 L/h (22.1 US gal/h, 18.4 Imp.gal/h)
Cruising range at full throttle:
0.84 hour
Trolling speed:
1250 ±100 r/min
Engine:
Engine type:
Liquid cooled 4-stroke, DOHC
Number of cylinders:
4
Engine displacement:
1812 cm³
Bore × stroke:
86.0 × 78.0 mm (3.39 × 3.07 in)
Compression ratio:
8.5 : 1
Valve clearance-intake (cold):
0.14–0.23 mm (0.0055–0.0091 in)
Valve clearance-exhaust (cold):
0.36–0.45 mm (0.0142–0.0177 in)
Lubrication system:
Wet sump
Cooling system:
Water
Starting system:
Electric
Ignition system:
T.C.I.Spark plug (NGK):
LFR7A
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Battery capacity:
12 V, 19 Ah
Charging system:
Flywheel magneto
Drive unit:
Propulsion system:
Jet pump
Jet pump type:
Axial flow, single stage
Impeller rotation:
Counterclockwise
Jet thrust nozzle angle:
24+24 °
Jet thrust nozzle trim angle:
-6, -3, 0, 3, 6 °
Fuel and oil:
Recommended fuel:
Premium unleaded gasoline
Minimum octane rating (PON):
91
Minimum octane rating (RON):
95
Recommended engine oil:
YAMALUBE 4W or 4-stroke motor oil
Recommended engine oil type SAE:
SAE 10W-30, 10W-40, 20W-40, 20W-50
Recommended engine oil grade API:
API SG, SH, SJ, SL
Fuel tank total capacity:
70 L (18.5 US gal, 15.4 Imp.gal)
Engine oil quantity with oil filter replacement:
3.6 L (3.81 US qt, 3.17 Imp.qt)
Engine oil quantity without oil filter replacement:
3.5 L (3.70 US qt, 3.08 Imp.qt)
Engine oil total quantity:
5.3 L (5.60 US qt, 4.66 Imp.qt)
UF3P70E0.book Page 88 Friday, September 2, 2016 11:32 AM

Trouble recovery
90
Engine runs irregu-
larly or stallsFuel Fuel tank empty Refill as soon as pos-
sible49
Stale or contaminat-
edHave serviced by
Yamaha dealer—
Incorrect octane
numberUse correct fuel
49
Fuel tank Water or dirt present Have serviced by
Yamaha dealer—
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel injec-
tion systemFaulty or clogged in-
jectorsHave serviced by
Yamaha dealer—
Warning light or in-
dicator blinks or
comes onFuel level
warningFuel tank empty Refill as soon as pos-
sible49
Oil pressure
warningOil pressure dropped Have serviced by
Yamaha dealer39
Engine over-
heat warningJet intake clogged Clean
92
Check en-
gine warningFaulty sensors Have serviced by
Yamaha dealer40 TROUBLE POSSIBLE CAUSE REMEDY PAGE
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Trouble recovery
91
Watercraft slow or
loses powerWatercraft
operation
modeLow RPM Mode acti-
vatedDeactivate Low RPM
Mode 35
Cavitation Jet intake clogged Clean 92
Impeller damaged or
wornHave serviced by
Yamaha dealer92
Engine over-
heat warningEngine speed reduc-
tion control activatedClean jet intake and
cool engine40
Oil pressure
warningEngine speed reduc-
tion control activatedAdd oil
39
Spark plug Fouled or defective Have serviced by
Yamaha dealer—
Incorrect heat range Have serviced by
Yamaha dealer—
Gap incorrect Have serviced by
Yamaha dealer—
Electrical wir-
ingLoose connection Have serviced by
Yamaha dealer—
Fuel Stale or contaminat-
edHave serviced by
Yamaha dealer—
Incorrect octane
numberUse correct fuel
49
Air filter Clogged Have serviced by
Yamaha dealer—
Oil buildup Have serviced by
Yamaha dealer—
Throttle lever Faulty Have serviced by
Yamaha dealer— TROUBLE POSSIBLE CAUSE REMEDY PAGE
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98
Index
A
After removing the watercraft from the
water ..................................................... 77
B
Battery care.............................................. 79
Battery checks ......................................... 59
Battery, jumping ....................................... 93
Beaching and docking the watercraft ...... 76
Bilge water check..................................... 59
Bilge water, draining ................................ 53
Bilge water, draining on land ................... 53
Bilge water, draining on water ................. 53
Boarding alone ......................................... 72
Boarding and starting off from a dock ..... 75
Boarding the watercraft ........................... 72
Boarding with passenger(s) ..................... 73
Bow eye ................................................... 44
Bow storage compartment ...................... 45
Builder’s plate ............................................ 2
C
Capsized watercraft ................................. 75
Check engine warning ............................. 40
Cleaning ................................................... 82
Cleaning the watercraft ............................ 79
Cleat ......................................................... 44
Cooling water pilot outlet check .............. 64
Cooling water pilot outlets ....................... 29
Craft Identification Number (CIN)............... 1
Cruising limitations................................... 11
E
Electric trim system.................................. 33
Emergency procedures ............................ 92
Engine break-in ........................................ 55
Engine compartment check ..................... 58
Engine cover, removing and installing ..... 83
Engine idling speed check ....................... 65
Engine oil ................................................. 51
Engine oil and oil filter .............................. 87
Engine oil level check............................... 59
Engine oil requirements ........................... 51
Engine overheat warning ......................... 40
Engine serial number ................................. 1
Engine shut-off cord (lanyard) check ....... 61
Engine shut-off switch ............................. 27
Engine stop switch................................... 27Engine unit check ..................................... 59
Enjoy your watercraft responsibly ............ 19
Equipment ................................................ 42
F
Fire extinguisher check ............................ 63
Fire extinguisher holder and cover........... 47
Fire extinguisher holder, cover, and
band checks ......................................... 62
Flushing the cooling water passages....... 78
Fuel .......................................................... 49
Fuel level check........................................ 58
Fuel level meter ........................................ 39
Fuel level warning..................................... 39
Fuel requirements .................................... 49
Fuel system checks ................................. 58
Fuses, replacing ....................................... 94
G
Getting to know your watercraft .............. 66
Glossary, watercraft ................................. 20
Glove compartment ................................. 46
H
Handgrip .................................................. 43
Hazard information................................... 15
Hood check .............................................. 64
Hour meter ............................................... 40
Hull and deck check ................................ 63
I
Identification numbers ............................... 1
Information display................................... 37
J
Jet intake and impeller, cleaning.............. 92
Jet intake checks ..................................... 63
Jet thrust nozzle and reverse gate
check .................................................... 63
Jumper cables, connecting ...................... 93
L
Labels, important ....................................... 4
Labels, other .............................................. 8
Labels, warning .......................................... 5
Launching the watercraft ......................... 67
Learning to operate your watercraft......... 66
Leaving the watercraft.............................. 68
Limitations on who may operate the
watercraft .............................................. 10
Long-term storage ................................... 82
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Index
99
Low RPM Mode ....................................... 35
Lubrication ............................................... 82
M
Main components, location of ................. 21
Maintenance ............................................ 83
Manufactured date label ............................ 2
Model information ...................................... 2
Multifunction information center .............. 37
Multifunction information center check ... 64
O
Oil pressure warning ................................ 39
Operating in weeded areas ...................... 76
Operating the watercraft .......................... 68
Operating the watercraft in reverse or
neutral ................................................... 71
Operating your watercraft ........................ 66
Operation requirements ........................... 12
P
Periodic maintenance chart ..................... 85
Post-launch checks ................................. 64
Post-operation care ................................. 78
Pre-launch checks ................................... 58
Pre-operation check points ..................... 58
Pre-operation checklist ............................ 56
Primary Identification (PRI-ID) number ...... 1
R
Raising the reverse gate .......................... 93
Reboarding step ...................................... 43
Recommended equipment ...................... 14
Remote control transmitter ...................... 25
Remote control transmitter check ........... 61
Removable watertight storage
compartment ........................................ 47
RiDE lever................................................. 28
RiDE lever checks .................................... 61
Riding position ......................................... 67
Rustproofing ............................................ 82
S
Safe boating rules .................................... 18
Safety equipment check .......................... 63
Seats ........................................................ 42
Shift indicator ........................................... 38
Shift system ............................................. 31
Shift system check................................... 64
Speedometer ........................................... 37Start switch .............................................. 27
Starting off ............................................... 74
Starting off from a trailer .......................... 75
Starting the engine on water .................... 67
Steering system ....................................... 28
Steering system checks ........................... 60
Stern drain plug checks ........................... 63
Stern eyes ................................................ 44
Stopping the engine ................................. 68
Stopping the watercraft ........................... 70
Storage compartment checks.................. 62
Storage compartments ............................ 45
Submerged watercraft ............................. 96
Switch checks .......................................... 62
T
Tachometer .............................................. 38
Throttle lever ............................................ 28
Throttle lever checks ................................ 61
Tool kit ..................................................... 83
Towing the watercraft .............................. 96
Transporting on a trailer ........................... 54
Trim indicator ........................................... 38
Trim indicator check ................................ 65
Troubleshooting ....................................... 89
Troubleshooting chart .............................. 89
Turning the watercraft .............................. 69
V
Voltmeter .................................................. 41
W
Wakeboarding and water-skiing .............. 17
Water separator ....................................... 29
Water separator check ............................. 59
Watercraft characteristics ........................ 15
Watercraft control functions..................... 25
Watercraft operation functions ................ 31
Watercraft operation modes .................... 35
Y
Yamaha Security System ......................... 26
Yamaha Security System settings ........... 26
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