What causes Final drive spline wear and failure on the Bmw R Ninet?

Clunking on acceleration, check service history for greasing Estimated fix cost: $800-$1500

What causes Throttle body sync causes rough idle on the Bmw R Ninet?

Uneven idle, surging at low RPM in traffic Estimated fix cost: $150-$300

Oil residue on lower fork legs, check carefully Estimated fix cost: $200-$400

Battery draining, check voltage at idle below 13V Estimated fix cost: $300-$600

Known issues to inspect before buying a used Bmw R Ninet. What to check and how much repairs cost.

SERIOUS

Clunking on acceleration, check service history for greasing

Fix cost: $800-$1500

MODERATE

Uneven idle, surging at low RPM in traffic

Fix cost: $150-$300

MODERATE

Oil residue on lower fork legs, check carefully

Fix cost: $200-$400

MODERATE

Battery draining, check voltage at idle below 13V

Fix cost: $300-$600

☐Grease final drive spline history confirmed

☐Test ride in stop-and-go traffic

☐Check fork legs for oil residue

☐Verify battery holds charge overnight

Solid but needs attentive maintenance history