What causes Cam chain tensioner shoe wear (pre-2006) on the Harley-davidson Sportster Xl1200 (1200 Custom/nightster Style)?

Rattle at idle, metal flakes in oil filter Estimated fix cost: $800-$1800

What causes Charging system: stator and voltage regulator failure on the Harley-davidson Sportster Xl1200 (1200 Custom/nightster Style)?

Battery voltage 13.5-14.5V at 2000 rpm Estimated fix cost: $250-$600

Oil film on fork tubes, saggy rear ride Estimated fix cost: $150-$500

Engine rock at idle, cracked isolator rubber Estimated fix cost: $200-$500

Known issues to inspect before buying a used Harley-davidson Sportster Xl1200 (1200 Custom/nightster Style). What to check and how much repairs cost.

SERIOUS

Rattle at idle, metal flakes in oil filter

Fix cost: $800-$1800

MODERATE

Battery voltage 13.5-14.5V at 2000 rpm

Fix cost: $250-$600

MINOR

Oil film on fork tubes, saggy rear ride

Fix cost: $150-$500

MODERATE

Engine rock at idle, cracked isolator rubber

Fix cost: $200-$500

☐Cold start, listen for top-end rattle

☐Check oil level and filter debris

☐Test charging voltage with multimeter running

☐Inspect primary/final drive belt and sprockets

Solid if maintained; simple, cheap to fix