Operation
35
EJU31800
Fuel and oil
This engine uses Yamaha’s oil injection sys-
tem, which provides superior lubrication by
ensuring the proper fuel-to-oil ratio for all op-
erating conditions. No fuel premixing is nec-
essary, except during the engine break-in
period. Simply pour gasoline into the fuel tank
and oil into the oil tank.
The engine utilizes an electronic fuel injection
system to deliver the optimal air-fuel ratio re-
quired by the engine. By ensuring the optimal
combustion conditions, this system is able to
increase startability and improve fuel econo-
my.
EJU31850Gasoline
WARNING
EWJ00440
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!
Do not smoke when refueling, and keep
away from sparks, flames, and other
sources of ignition.
Stop the engine before refueling.
Refuel in a well-ventilated area with the
watercraft in a horizontal position.
Do not stand or sit on the watercraft
while refueling in case of fire.
Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags. Always properly dispose of
gasoline-soaked rags.
Avoid overfilling the fuel tank. Stop fill-
ing when the fuel level just reaches the
bottom of the filler tube. Do not fill up the
filler tube because fuel expands as it
warms up and could overflow. If tempo-
rarily leaving the watercraft with a full
fuel tank, do not leave it in direct sun-
light. Leave it in a well-ventilated areawith the watercraft in a horizontal posi-
tion.
Tighten the fuel tank filler cap securely
after refueling.
If you should swallow some gasoline, in-
hale a lot of gasoline vapor, or get gaso-
line in your eyes, get immediate medical
attention.
If any gasoline spills on your skin or
clothing, immediately wash the affected
area with soap and water and change
your clothes.
CAUTION:
ECJ00320
Do not use leaded gasoline. Leaded gas-
oline can seriously damage the catalytic
converter.
Use only fresh gasoline that has been
stored in clean containers.
EJU31860Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and the
fuel meets the minimum octane ratings.
Gasohol containing methanol is not recom-
mended by Yamaha because it can cause
fuel system damage and engine performance
problems.Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of
86 (Pump octane number) = (R +
M)/2
90 (Research octane number)
UF1G74E0.book Page 35 Monday, July 31, 2006 10:10 AM
Specifications
72
EJU34540
Specifications
Watercraft capacity:
Maximum people on board:
2 person
Maximum load capacity:
160 kg (353 lb)
Dimensions:
Length:
2930 mm (115.4 in)
Width:
1150 mm (45.3 in)
Height:
1020 mm (40.2 in)
Dry weight:
297 kg (655 lb)
Performance:
Maximum output (according to ISO 8665/SAE
J1228):
114.7 kW@7000 r/min
Maximum fuel consumption:
57.0 L/h (15.1 US gal/h) (12.5 Imp.gal/h)
Cruising range at full throttle:
1.05 hour
Trolling speed:
1350 ±100 r/min
Engine:
Engine type:
2-stroke
Number of cylinders:
3
Engine displacement:
1297.0 cm³
Bore & stroke:
84.0 × 78.0 mm (3.31 × 3.07 in)
Compression ratio:
5.90 :1
Lubrication system:
Oil injection
Cooling system:
Water
Starting system:
Electric
Ignition system:
Digital C.D.I.
Spark plug:
BR8ES-11
Spark plug gap:
1.0–1.1 mm (0.039–0.043 in)Battery capacity:
12 V19.0 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:
23.0 °+23.0 °
Jet thrust nozzle trim angle:
-10 °, -5 °, 0 °, 5 °, 10 °
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Minimum octane rating (PON):
86
Minimum octane rating (RON):
90
Recommended engine oil:
YAMALUBE 2-W
Fuel tank total capacity:
60.0 L (15.9 US gal) (13.2 Imp.gal)
Engine oil tank capacity:
5.5 L (1.45 US gal) (1.21 Imp.gal)
UF1G74E0.book Page 72 Monday, July 31, 2006 10:10 AM
