What causes Fuel pump failure causing stalling on the BMW R12 G/S?

Cold start hesitation, stalling at low speeds or idle Estimated fix cost: $300-$600

What causes Throttle body synchronization drift on the BMW R12 G/S?

Rough idle, uneven power delivery between cylinders Estimated fix cost: $150-$300

Oil residue around rear drive housing and wheel hub Estimated fix cost: $200-$500

ABS warning light, inspect wheel speed sensor connectors Estimated fix cost: $200-$800

Known issues to inspect before buying a used BMW R12 G/S. What to check and how much repairs cost.

SERIOUS

Cold start hesitation, stalling at low speeds or idle

Fix cost: $300-$600

MODERATE

Rough idle, uneven power delivery between cylinders

Fix cost: $150-$300

MODERATE

Oil residue around rear drive housing and wheel hub

Fix cost: $200-$500

MODERATE

ABS warning light, inspect wheel speed sensor connectors

Fix cost: $200-$800

☐Check service history for throttle sync records

☐Inspect final drive for oil seepage traces

☐Test ride cold start fuel delivery behavior

☐Scan ECU for stored fault codes

Generally solid, maintenance-dependent, affordable upkeep