024-55560
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INSTALLATION INSTRUCTIONS
COMPU-FIRE® 3 PHASE CHARGING SYSTEMS
(Evo Big Twin Engines)
Part # 55560 Evo Big Twin with wet primary. Inc. vented rotor.
Part # 55570 Evo Big Twin w/ open primary. Inc. rotor w/o vents.
READ THESE INSTRUCTIONS COMPLETELY BEFORE BEGINNING
INSTALLATION!
NOTE: REFER TO THE FACTORY SHOP MANUAL ELECTRICAL SECTION FOR SAFETY
INSTRUCTIONS PRIOR TO PERFORMING ANY ELECTRICAL SYSTEM REPAIRS OR
MODIFICATIONS!
CAUTION! ALWAYS DISCONNECT THE BATTERY CABLES BEFORE PERFORMING ANY
ELECTRICAL SYSTEM REPAIRS OR MODIFICATIONS.THIS WILL PREVENT DAMAGE TO
THE ELECTRICAL SYSTEM OR COMPONENTS IN CASE OF AN ELECTRICAL ARC
CAUSED BY SHORTING THE BATTERY POWER TO GROUND.
WARNING! SEVERE DAMAGE TO THE ELECTRICAL SYSTEM OR PERSONAL INJURY
MAY OCCUR BY NOT FOLLOWING THE ABOVE SAFETY INSTRUCTIONS.
CAUTION! The installation of the Compu-Fire 3-Phase Charging System requires factory Harley
Davidson® service tools in the disassembly of the clutch and primary chain sprocket. If you are
not familiar with the disassembly of the primary drive assembly, or do not have the proper tools,
Compu-Fire recommends the installation be performed by a trained Harley Davidson®
technician.
1. Disconnect the cables at the battery. Remove the ground (-) cable first and then the
positive (+) cable.
2. Drain the oil in the primary chain case and remove the outer primary cover,
compensating sprocket, primary drive and clutch as described in the factory manual.
3. Remove the alternator rotor using Harley Davidson® puller part no. 95960-52B. Note
the location of the washers. Discard the washer on the inside of the rotor.
4. Remove the stator plug retainer and the four Torx head screws attaching the stator.
5. Remove the sprocket shaft seal and spacer following the factory service manual
instructions.
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