2012 Harley-Davidson FLHX Street Glide — Common Issues & Known Problems
Known Issues & Owner Reports
These are the most commonly reported issues and concerns from owners, mechanics, and community forums for the 2012 Harley-Davidson FLHX Street Glide.
Voltage Regulator Failure
HighA manufacturing defect in 2012 models causes the regulator to overheat and stop charging, eventually draining the battery and stalling the bike.
Excessive Engine Heat
MediumThe catalytic converter is located in the header pipe right next to the rider's leg, causing significant discomfort in traffic.
Compensator 'Clunk'
MediumThe stock compensator lacks adequate lubrication and spring tension for the 103ci torque, leading to noise and eventual starter damage.
Used Buying Inspection Checklist
What to look for when buying a used 2012 Harley-Davidson FLHX Street Glide.
Voltage Regulator Date Code
Check if the regulator was replaced under recall 0147 (build dates Oct 2011–Mar 2012 are most affected).
Compensator Noise
Listen for a metallic 'bang' or 'clunk' when the engine fires or shuts down, indicating the compensator springs are weak.
Inner Primary Leak
Look for oil pooling at the bottom of the primary case, which often indicates a failing inner primary bearing or seal.
ABS Light
If equipped, ensure the ABS light goes out after reaching 3-5 mph; wheel speed sensor failures are common.
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