1-2 - GENERAL INFORMATION and SPECIFICATIONS 90-817643R1 DECEMBER 1996
Master Specifications
Model 45 Jet/50/55 Marathon-Seapro/60/60 Marathon-Seapro/60 Bigfoot
HORSEPOWER
(KW)
Model 50
Model 55
Model 60
Model 45 Jet
50 (37)
55 (41)
60 (45)
60 (45)
OUTBOARD
WEIGHT
Electric Start (ELPTO)
(ELO)
Manual Start (ML)
217.0 lbs. (98.4kg)
213.0 lbs. (96.6kg)
213.0 lbs. (96.6kg)
CYLINDER
BLOCK
Type
Displacement
Two-Stoke Cycle – Loop Charged
51.8 cu. in. (849cc)
STROKE Length 2.520 in. (64.008mm)
CYLINDER
BORE
Diameter (Std)
Taper/Out of Round Maximum
Bore Type
2.955 in. (75.057mm)
0.003 in. (0.076mm)
Cast Iron
PISTON Piston Type
Standard
0.015 in. (0.381mm) Oversize
0.030 in. (0.762) Oversize
Aluminum
2.950 in. (74.93 mm)
2.965 in. (75.31 mm)
2.980 in. (75.69 mm)
REEDS Reed Stand 0pen (Max.)
Reed Stop (Max.)
Reed Thickness
– 45 Jet/50/60
– 55
0.020 in. (0.50mm)
Not Adjustable
0.008 in. (0.203mm)
0.010 in. (0.254mm)
GEAR
HOUSING
50/55/60
Gear Ratio
Gearcase Capacity
Forward Gear - No. of Teeth
Pinion Gear - No. of Teeth
Pinion Height
Forward Gear Backlash
Water Pressure
– @ Idle
– @ WOT
60 SeaPro/Marathon, 60 Bigfoot
Gear Ratio
Gearcase Capacity
Forward Gear - No. of Teeth-Type
Pinion Gear - No. of Teeth-Type
Pinion Height
Forward Gear Backlash
Water Pressure @ RPM
1.64:1
11.5 fl. oz. (340ml)
23
14
0.025 in. (0.64mm)
0.013 in. – 0.019 in.
(0.33mm – 0.48mm)
1 – 3 PSI
7 – 12 PSI
2.3:1
22.5 fl. oz. (655ml)
30
13
0.025 in. (0.64mm)
0.012 in. to 0.019 in. (0.30mm to 0.48mm)
10 to 15 PSI (69 to 103 kPa) @ 5250 RPM
FUEL
SYSTEM
Fuel
Recommended Gasoline
Recommended Oil
Gasoline/Oil Ratio
Fuel Pressure – @ Idle
– @ WOT
Pre-Mixed Gasoline and Oil
Unleaded 87 Octane Minimum
Quicksilver TC-W II or TC-W3 2 Cycle
Outboard Oil
50:1 (25:1 Break-In)
3-1/2 PSI
6 PSI
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