1990 Harley-Davidson FLHT Electra Glide Standard — 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 1990 Harley-Davidson FLHT Electra Glide Standard.
Inner Cam Bearing Failure
HighThe stock INA bearing uses a plastic cage that can disintegrate, leading to catastrophic engine failure.
Cylinder Base Gasket Leaks
MediumOriginal paper gaskets lose their seal over time due to heat cycles and cylinder stud expansion.
Anti-Dive Solenoid Power Draw
LowThe front fork anti-dive solenoid can draw significant current when the front brake is applied, sometimes causing the radio or lights to flicker.
Used Buying Inspection Checklist
What to look for when buying a used 1990 Harley-Davidson FLHT Electra Glide Standard.
Rear Cylinder Base
Check for 'weeping' oil; this is the most common leak site on the Evolution engine.
Swingarm Pivot Bushings
Worn Clevebloc bushings cause the 'bagger wobble' at high speeds; check for lateral play in the rear wheel.
Charging System Plug
Inspect the plug where the stator wires exit the engine case for oil leaks or burnt pins.
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