Mercury 105 Jet 2-stroke specs
| Engine Model: Mercury 105 Jet |
| Engine Type: 2-stroke 6-cylinder gasoline outboard engine |
| Total Displacement: 121.9 cu.in (1998 cc) |
| Rated Engine Power: 150 Hp (111.8 kW) at 5600 rpm |
| Fuel System: Float type carburetor |
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Engine Model .............. Mercury Jet 105
Engine Type .............. 2-stroke 6-cylinder gasoline outboard engine
Number of Cylinders .............. Six
Displacement, cu.in (cc) .............. 121.9 (1998)
Cylinder Bore, in (mm) .............. 3.13 (79.4)
Piston Stroke, in (mm) .............. 2.65 (67.3)
Maximum Engine Power, hp (kW) .............. 150.0 (111.8)
Maximum Engine Speed, rpm .............. 5000-5600
Idle Speed, rpm .............. 650±50
Firing Order .............. 1-2-3-4-5-6
Ignition System .............. Capacitor discharge
Starting System .............. Manual Start / Electric Start
Electrical System Rating, Volts .............. 12
Charging System .............. Alternator
Alternator Rating, Amps .............. 40
Outboard Weight, lbs (kg) .............. 428 (195)
Fuel System Type .............. Carburetor
Carburetor Type .............. Float
Fuel Pump Type .............. Diaphragm
Fuel Type .............. Gasoline with oil injection
Recommended Gasoline .............. Unleaded gasoline (87 octane minimum)
Recommended Oil .............. Quicksilver or Mercury Precision Lubricants TC-W3
Operating Fuel/Oil Ratio .............. 50:1
Fuel Pressure (Idle Speed), psi (kPa) .............. 2 (13.7)
Fuel Pressure (Wide Open Throttle), psi (bar) .............. 8 (54.8)
Gear Ratio (Standard) .............. 2.00:1
Gear Ratio (High Altitude) .............. 2.30:1
Number of Teeth (Forward Gear, 2.00:1 Ratio) .............. 28
Number of Teeth (Reverse Gear, 2.00:1 Ratio) .............. 14
Number of Teeth (Forward Gear, 2.30:1 Ratio) .............. 30
Number of Teeth (Reverse Gear, 2.30:1 Ratio) .............. 13
Pinion Height, in (mm) .............. 0.025 (0.64)
Forward Gear Backlash (2.00:1 Ratio), in (mm) .............. 0.015-0.022 (0.381-0.558)
Forward Gear Backlash (2.30:1 Ratio), in (mm) .............. 0.018-0.023 (0.460-0.585)
Reverse Gear Backlash, in (mm) .............. 0.030-0.050 (0.762-1.27)
Water Pressure / RPM, psi (kPa) .............. 12 (82.2) / 5000
Transom Height (Short Shaft), in (mm) .............. 15 (380)
Transom Height (Long Shaft), in (mm) .............. 20 (510)
Power Trim (Total Tilt Range), deg .............. 75
Power Trim (Tilt Range), deg .............. 20
Tilt Pin Adjustment Positions .............. 5
Steering System ................ Tiller handle or remote control
Steering Pivot Range, deg .............. 60
Allowable Transom Thickness (Max), in (mm) .............. 2.37 (60.3)
Cylinder Block Type .............. V6, 2-cycle, loop charged
Cylinder Bore Type .............. Cast iron
Cylinder Compression, psi (kPa) .............. 110-135 (753-925)
Cylinder Bore Inside Diameter (Std), in (mm) .............. 3.125 (79.375)
Cylinder Bore Inside Diameter (Max), in (mm) .............. 3.128 (79.451)
Cylinder Bore (Max Out of Round), in (mm) .............. 0.003 (0.076)
Cylinder Bore (Max Taper), in (mm) .............. 0.003 (0.076)
Piston Type .............. Aluminum
Piston Outside Diameter (Std), in (mm) .............. 3.115 (79.121)
Piston Outside Diameter (Wear Limit), in (mm) .............. 3.113 (79.070)
Reed Type .............. Steel
Reed Stand Open (Maximum), in (mm) .............. 0.02 (0.50)
Reed Stop .............. Not Adjustable
Engine Fuel Type .............. Unleaded 87 octane minimum
Engine Oil Type .............. Quicksilver TC-W3 2-cycle outboard oil
Engine Oil Capacity, gal (L) .............. 3.0 (11.4)
Lubricant Type .............. Quicksilver gear lube premium blend
Gearcase Capacity, qts (L) .............. 0.71 (0.67)
Fuel Filter Part Number .............. 35-877565T1
Spark Plug Type .............. NGK BU8H
Spark Plug Gap, in (mm) .............. 0.040 (1.0)
Maximum BTDC (Cranking Speed), deg .............. 21
Maximum BTDC (Wide Open Throttle), deg .............. 19
Carburetor Model .............. WMH 31 or WMV 2/2A
Idle Mixture Screw .............. 1-1/2±1/8 turn
Float Level .............. Bowl Edge / Bowl Inverted
Main Jet Size (WMH 31), in (mm) .............. 0.062 (1.57)
Main Jet Size (WMV 2/2A), in (mm) .............. 0.074 (1.88)
Off-Idle Jet Size (WMH 31), in (mm) .............. 0.050 (1.27)
Idle Air Jet (WMH 31), in (mm) .............. 0.052 (1.32)
Idle Air Jet (WMV 2/2A), in (mm) .............. 0.034 (0.86) / 0.038 (0.97)
Vent Jet (WMH 31), in (mm) .............. 0.086 (2.18)
Vent Jet (WMV 2/2A), in (mm) .............. 0.086 (2.18)
Low Idle Speed, rpm .............. 650±50
Wide Open Throttle, rpm .............. 5000-5600
Lubricate all lubrication points .............. Every 100 hours
Inspect and clean spark plugs .............. Every 100 hours
Check engine fuel filter .............. Every 100 hours
Check carburetor adjustments .............. Every 100 hours
Check corrosion control anodes .............. Every 100 hours
Drain and replace gear case lubricant .............. Every 100 hours
Lubricate splines on the drive shaft .............. Every 100 hours
Inspect battery condition .............. Every 100 hours
Check power trim fluid .............. Every 100 hours
Check and adjust carburetor .............. Every 100 hours
Check engine timing setup .............. Every 100 hours
Check control cable adjustments .............. Every 100 hours
Check tightness of bolts, nuts, and other fasteners .............. Every 100 hours
Replace water pump impeller .............. Every 100 hours
Cylinder Block Cover Screw, Nm (ft-lb) .............. 23.5 (17.5)
Crankcase Cover Bolts, Nm (ft-lb) .............. 51.5 (38)
Exhaust Divider Plate Bolts, Nm (ft-lb) .............. 22.6 (16.7)
Cylinder Head Bolts, Nm (ft-lb) .............. 40.5 (30)
Connecting Rod Bolts, Nm (ft-lb) .............. 40.5 (30)
Crankcase Cover Bolts, Nm (ft-lb) .............. 17 (12.6)
Fuel Pump Screw, Nm (ft-lb) .............. 8.1 (6.1)
Thermostat Screw, Nm (ft-lb) .............. 22.5 (16.5)
Crankshaft Drive Gear Screw, Nm (ft-lb) .............. 1.0 (0.75)
Steering Link Assembly, Nm (ft-lb) .............. 27 (20)
Drive Shaft Housing Nut, Nm (ft-lb) .............. 65 (48)
Gear Housing Screw, Nm (ft-lb) .............. 7 (5)
Propeller Nut, Nm (ft-lb) .............. 75 (55)
Spark Plug, Nm (ft-lb) .............. 27 (20)
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