3-2
E
EJU01832
Gasohol
There are two types of gasohol: gasohol
containing ethanol and that containing meth-
anol.
Gasohol containing ethanol can be used
if ethanol content does not exceed 10% and
the fuel meets minimum octane ratings.
Gasohol containing methanol is not rec-
ommended by Yamaha because it can
cause fuel system damage or engine perfor-
mance problems.
EJU10441
2-stroke engine oil
If YAMALUBE 2-W oil is not available,
another 2-stroke engine oil with an
NMMA-certified TC-W3 rating may be used. Recommended gasoline:
Regular unleaded gasoline with a
minimum octane rating of
86 (Pump octane number) = (R+M)/2
90 (Research octane number)
Recommended engine oil:
YAMALUBE 2-W oil
E_F1N-70.book Page 2 Tuesday, April 26, 2005 12:03 PM
4-23
E
EJU01359
Specifications
*1: Pump Octane Number
*2: Research Octane NumberMODEL
ITEMUnit SJ700
WATERCRAFT CAPACITY
Maximum people on board Number of people 1
DIMENSIONS
Length mm (in) 2,240 (88.2)
Width mm (in) 680 (26.8)
Height mm (in) 660 (26.0)
Dry weight kg (lb) 132 (291)
PERFORMANCE
Maximum power output kW (PS) @ r/min 53.7 (73) @ 6,300
Maximum fuel consumption L/h (US gal/h, Imp gal/h) 29 (7.7, 6.4)
Cruising range at full throttle hr. 0.6
Trolling speed r/min 1,250–1,350
ENGINE
Engine type 2-stroke
Number of cylinders 2
Engine displacement
cm
3 (cu in)701 (42.78)
Bore & stroke mm (in) 81 ×
68 (3.19 ×
2.68)
Compression ratio 7.2
Lubrication system Pre-mixed fuel
Cooling system Water cooled
Starting system Electric starter
Ignition system CDI
Spark plug BR7HS (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 37, 41, 45, 49
FUEL AND OIL
Recommended fuel Regular unleaded gasoline
Minimum octane rating PON (*1)
RON (*2)86
90
Recommended engine oil YAMALUBE 2-W, or an equivalent NMMA-
certified TC-W3 marine oil
Fuel mixing ratio (fuel to oil) 50:1
Fuel tank capacity
Total L (US gal, Imp gal) 18 (4.8, 4.0)
Reserve L (US gal, Imp gal) 5.5 (1.45, 1.21)
E_F1N-70.book Page 23 Tuesday, April 26, 2005 12:03 PM
