Johnson J10RSUR

18
SERVICE SPECIFICATIONS AND SPECIAL TOOLS
TECHNICAL DATA
TECHNICAL DATA
ENGINE
HP 9.9, 15
Full Throttle
Operating Range RPM
9.9 HP: 5000-6000
15 HP: 5500-6500
Power
9.9 HP (7.5 kw) @ 5500 RPM
15 HP (11.2 kw) @ 6000 RPM
Idle RPM in Gear 700 ± 50
Weight
R Models: 74 lbs. (34 kg)
RL Models: 77 lbs. (35 kg)
Lubrication
Evinrude/Johnson XD30 formula outboard oil
Refer to Oil Requirements on p. 44.
Engine Type In-line 2 cylinder
Displacement
15.6 cu. in. (255 cm
3
)
Bore 2.375 in. (60.33 mm)
Stroke 1.760 in. (44.70 mm)
Standard Bore
2.3745 to 2.3750 in. (60.31 to 60.33 mm)
To bore oversize, add piston oversize dimension to standard bore
Top Crankshaft Journal 0.8757 to 0.8762 in. (22.24 to 22.26 mm)
Center Crankshaft Journals 0.8120 to 0.8125 in. (20.63 to 20.64 mm)
Bottom Crankshaft Journal 0.7870 to 0.7874 in. (19.98 to 19.99 mm)
Rod Crankpin 0.8120 to 0.8125 in. (20.63 to 20.64 mm)
Piston Ring End Gap, Both 0.005 to 0.015 in. (0.13 to 0.38 mm)
Lower Piston Ring Groove
Side Clearance
0.004 in (0.10 mm) maximum
Test Propeller 340177
Minimum Test RPM
9.9 HP: 4900
15 HP: 5700
FUEL
Fuel/Oil Ratio 50:1
Carburetion One single-throat carburetor, float feed
Calibration
Adjustable low speed;
Fixed high speed
Low-Speed Setting
Refer to
FUEL SYSTEM section.
Starting Enrichment Manual choke
Carburetor Float Level Setting Float gauge, P/N 324891
Carburetor Float Drop Setting 1 to 1 3/8 in. (25 to 35 mm)
Preferred Fuel Regular unleaded, plus grade unleaded, premium unleaded gasolines
Acceptable Fuel Any of the above gasolines with 10% Ethanol or 5% Methanol with 5% co-solvents
Minimum Octane 87 AKI (R+M)/2 or 90 RON
Additives
2+4
®
Fuel Conditioner, Fuel System Cleaner, Carbon Guard
Use only Evinrude/Johnson recommended fuel additives.
The use of other additives may result in engine damage.
See Fuel Requirements on p. 43 for additional information.