3B-18 - FUEL SYSTEM
90-830234R3 DECEMBER 1997
Main (High Speed) Jet Adjustment
The carburetor has a fixed high speed jet. Extreme
changes in weather (temperature and humidity) and/
or elevation may result in a too lean or rich fuel mix-
ture at wide-open-throttle, which may require a
change in the high speed jet. A smaller size main jet
will lean the fuel mixture, and a larger size jet will en-
rich the fuel mixture.
b
a
c
a - High Speed Jet
b - Bowl Drain Plug
c - Idle Mixture Screw
Jet Orifice Size Chart
NOTE: 10-32 Thread Size
Jet Orifice
Size-inches
Part
Number
0.034
19266034
0.036
19266036
0.038
19266038
0.040
19266040
0.042
1399-5315
0.044
1395-7394
0.046
1399-5317
0.048
1395-6246
0.050
1395-6028
0.052
1395-6359
0.054
1399-5225
0.056
1399-5213
0.058
1395-7831
0.060
1395-6487
0.062
1399-4217
0.064
1399-4216
0.066
1399-4215
0.068
1395-6029
0.070
1395-6030
0.072
1395-6207
0.074
1399-3794
0.076
1399-3796
0.078
1395-6680
0.080
1395-6201
0.082
1399-3518
0.084
1399-3517
0.086
1395-5815
0.088
1395-6202
0.090
1395-6247
0.092
1395-5733
0.094
1395-8423
0.096
1399-6249
0.098
1395-7335
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 ...