7/8/2003 1000-208-00A
FloScan Instrument Company, Inc.
Tel: (206) 524-6625 Fax: (206) 523-4961
3016 NE Blakeley Street, Seattle, WA 98105 email: service@floscan.com http://www.floscan.com
Outboard Engines:
Tachometer calibration for standard point and electronic ignition outboard engines is usually based upon the number of alternator pole
pairs. EFI outboards sometimes use a CPU to generate its tachometer signal. Calibration for EFI engines is not always based
alternator pole pairs. Refer to your engine manual or check with a local dealer to determine the number of alternator pole pairs your
engine has.
Standard Points, Electronic Ignition, & EFI Outboard Engines
Coarse Synch Display, (Recommended) Fine Synch Display
Pole Pairs Black Switch Red Switch Pole Pairs Black Switch Red Switch
2 0 1 2 8 1
4 0 3 4 8 3
6 0 5 6 8 5
8 0 7 8 8 7
10 0 9 10 8 9
12 0 B 12 8 B
14 0 D 14 8 D
16 0 F 16 8 F
EFI Outboard Engines
Coarse Synch Display, (Recommended) Fine Synch Display
Pole Pairs Black Switch Red Switch Pole Pairs Black Switch Red Switch
CPU 0 1 CPU 8 1
Table II, 2&4-Cycle Gasoline Inboard Engines
Red Switch
100
RP
M
50
RPM
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 8 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.0 11.0 12.0 13.0 14.0 15.0 16.0
1 9 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.0 11.0 12.0 12.4 12.8 13.1 13.5
2 A 13.9 14.3 14.6 15.0 15.4 15.8 16.3 17.0 17.8 18.5 19.3 20.0 20.8 21.5 22.3 23.0
Black
3 B 23.8 24.5 25.3 26.0 26.8 27.5 28.3 29.0 29.8 30.5 31.3 32.0 33.5 35.0 36.5 38.0
Switch
4 C 39.5 41.0 42.5 44.0 45.5 47.0 48.5 50.0 51.5 53.0 54.5 56.0 57.5 59.0 60.5 62.0
5 D 63.5 66.0 69.0 72.0 75.0 78.0 81.0 84.0 87.0 90.0 93.0 96.0 99.0 102 105 108
6 E 111 114 117 120 123 126 130 136 142 148 154 160 166 172 178 184
7 F 190 196 202 208 214 220 226 232 238 244 250 256 268 280 292 304
Table III: Pulses/ Engine Revolution
