6A-8 - LOWER UNIT
90-830234R3
DECEMBER 1997
Gear Case Identification
CAUTION
Identify gear case design to ensure correct
components are being installed. Design I - “3 Jaw
Reverse Clutch” (a) gear case identified with
straight machined edge for trim tab screw
mounting surface. Design II - “6 Jaw Reverse
Clutch” (b) gear case identified with angled
machined edge for trim tab screw mounting
surface.
a
b
1987 – 1997
1998 and Newer
“3 Jaw Reverse Clutch” “6 Jaw Reverse Clutch”
a - Design I - “3 Jaw Reverse Clutch” Gear Case Identifier
b - Design II - “6 Jaw Reverse Clutch” Gear Case Identifier
Removal
WARNING
To prevent accidental engine starting, remove
(and isolate) spark plug leads from spark plugs
before removing gear housing.
1. Remove (and isolate) spark plug leads from
spark plugs.
2. Shift engine into forward gear.
3. Tilt engine to full “Up” position.
4. Remove fasteners.
5. Remove locknut and washer.
6. Remove gear housing.
a
b
53992
a - Fasteners (2 each side)
b - Locknut and Washer
Disassembly
Draining and Inspecting Gear
Housing Lubricant
WARNING
If gear housing is installed on engine, to avoid ac-
cidental starting, disconnect (and isolate) spark
plug leads from spark plugs before working near
the propeller.
1. With gear housing in normal running position,
place a clean pan under housing and remove the
two vent screws and one fill/drain screw (with
gaskets).
Summary of Contents for 100 FourStroke
Page 5: ...1 A 52485 IMPORTANT INFORMATION SPECIFICATIONS ...
Page 13: ...1 C IMPORTANT INFORMATION GENERAL INFORMATION ...
Page 23: ...1 D IMPORTANT INFORMATION OUTBOARD INSTALLATION ...
Page 37: ...A 2 53970 ELECTRICAL IGNITION ...
Page 81: ...B 2 11669 ELECTRICAL CHARGING AND STARTING SYSTEM ...
Page 108: ...C 2 22480 ELECTRICAL TIMING SYNCHRONIZING ADJUSTING ...
Page 119: ...D 2 ELECTRICAL WIRING DIAGRAMS ...
Page 146: ...A 3 53992 FUEL SYSTEM FUEL PUMP ...
Page 148: ...90 830234R3 DECEMBER 1997 FUEL SYSTEM 3A 1 Notes ...
Page 161: ...B 3 FUEL SYSTEM CARBURETOR ...
Page 190: ...C 3 FUEL SYSTEM OIL INJECTION ...
Page 192: ...90 830234R3 DECEMBER 1997 FUEL SYSTEM 3C 1 Notes ...
Page 211: ...4 20032 POWERHEAD ...
Page 215: ...90 830234R3 DECEMBER 1997 POWERHEAD 4 3 Notes ...
Page 292: ...A 5 MID SECTION CLAMP SWIVEL BRACKETS DRIVE SHAFT HOUSING ...
Page 294: ...90 830234R3 DECEMBER 1997 MID SECTION 5A 1 Notes ...
Page 317: ...5 51485 B MID SECTION POWER TRIM S N USA 0G360002 BEL 9934136 BELOW ...
Page 359: ...C 5 55331 MID SECTION POWER TRIM S N USA 0G360003 BEL 9934137 UP ...
Page 364: ...5C 4 MID SECTION 90 830234R3 DECEMBER 1997 Notes ...
Page 408: ...5 D MID SECTION SHOCK ABSORBER ...
Page 413: ...5 E MID SECTION MANUAL TILT ...
Page 451: ...A 6 791 H LOWER UNIT GEAR HOUSING ...
Page 489: ...6 B LOWER UNIT JET DRIVE ...
Page 491: ...90 830234R3 DECEMBER 1997 LOWER UNIT 6B 1 Notes ...
Page 513: ...A 7 50099 ATTACHMENTS CONTROL LINKAGE THROTTLE SHIFT LINKAGE ...
Page 543: ...7 B ATTACHMENTS CONTROL LINKAGE TILLER HANDLE ...
Page 545: ...90 830234R3 DECEMBER 1997 ATTACHMENTS CONTROL LINKAGE 7B 1 Notes ...
Page 567: ...51605 8 MANUAL STARTER ...
Page 569: ...90 830234R3 DECEMBER 1997 MANUAL STARTER 8A 1 Notes ...