FX/EF Super Glide Fat Bob®
Technical Page


For information about Harley-Davidson books and manuals goto the documentation page
Many European Harley riders are faced with the problem that all Harley-Davidson manuals specify contents, weigth and distance in US measures. The following table helps in converting from US to European measures.

1 Inch
1 Inch3
1 Mile

1 US Gallon
1 US Quart
1 US Pint

1 lb
1 oz



0.0703 Bar

25.40 mm
16.387 cc
1.609 Kilometer

3.785 Liter
0.946 Liter
0.473 Liter

0.454 Kilogram
28.35 gram
1 Bar

1 mm
1 cc
1 Kilometer

1 liter
1 liter
1 liter

1 Kilogram
1 gram



14.22 PSI

0.0394 Inch
0.061 Inch3
0.622 Mile

0.264 US Gallon
1.057 US Quart
2.114 US Pint

2.203 lb
0.035 oz


Since almost every H-D Manual tells you exactly how to set the timing of your (electrical) ignition using an INDUCTIVE TIMING LIGHT (Part No. HD-33813) and a TIMING MARK VIEW PLUG (Part No. HD-9629565C), I will NOT discuss that here. Instead I will give a few tips that might help you when you want to replace the electrical ignition with a mechanical one (contact breaker points).
The first thing to bear in mind is that if you replace the breakerless inductive discharge ignition system by a circuit breaker system, you MUST ALSO REPLACE the ignition coil. This is because the inductive ignition system uses an ignition coil with 2.5 to 3.1 Ohms resistance (primary) while a circuit breaker requires a coil with 4.7 to 5.7 Ohms resistance (primary).
Something else to notice is that meaning of the timing marks on the flywheel varies for different models:
Before 1980  Timing mark  1980 and Later
Advance (35o) timing mark
Front cylinder top dead center (TDC)
Retarded (5o BTC) position of piston topcenter mark Front cylinder advance timing mark
n/a Rear cylinder advance timing mark (1985 and earlier)

When mounting the circuit breaker plate, the condenser must be at the bottom while the breaker contacts must be at the top.

Disclaimer: This information is supplied on an "as-is" basis without warranty, expressed or implied.
The application of the information and documentation is completely the responsebility of the user.

© 1998-2022 Skybird communications - modified: March 06, 2019 11:51:54