2C-8 - ELECTRICAL
90-830234R3
DECEMBER 1997
MAXIMUM TIMING
1. Hold control arm against maximum advance
stop. 1994/1995 Models – Crank engine with
starter motor and adjust maximum advance
screw to align 22
°
BTDC mark on flywheel with
timing pointer (due to the advance characteristics
of ignition system, this cranking speed adjust-
ment will automatically be reduced to 20
°
BTDC
at engine speed of 3000 RPM). Tighten locknut.
1996/97/98 Models – Crank engine with starter
motor and adjust maximum advance screw to
align 25
°
BTDC mark on flywheel with timing
pointer (due to the advance characteristics of ig-
nition system, this cranking speed adjustment
will automatically be reduced to 23
°
BTDC at en-
gine speed of 3000 RPM). Tighten locknut.
53429
c
a
b
a - Control Arm
b - Maximum Advance Screw
c - Locknut
INITIAL STARTING ADJUSTMENTS
NOTE: For adjusting carburetor throttle linkage and
synchronizing carburetors, see section “Timing/
Synchronizing/Adjusting” of this manual.
After service or replacement of carburetor, turn low
speed mixture screw adjustment in (clockwise) until
it seats lightly, then back off (each carburetor) to
specifications (80 JET/100/115/125 - 1-1/2 turns).
This will permit engine start-up.
LOW SPEED MIXTURE ADJUSTMENTS
NOTE: Only the top two carburetors on four cylinder
models have an adjustable low speed mixture screw.
1. Start engine and allow to warm up (run for several
minutes). Throttle back to idle for about one min-
ute to allow RPM to stabilize.
2. With engine running at idle speed (in water) in
“Forward” gear (prop on), turn low speed mixture
screw, IN (clockwise) until engine starts to “bog”
down and misfire. Back out 1/4 turn or more.
3. Check for too lean mixture on acceleration.
4. DO NOT adjust leaner than necessary to attain
reasonable smooth idling. When in doubt, stay on
the slightly rich side of the adjustment.
54171
a
a - Low Speed Mixture Screw
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 ...