What causes Fuel pump failure causing stalling or no-start on the Triumph Bonneville Bobber?

Test for consistent idle and hard start symptoms Estimated fix cost: $300-$600

What causes Rear shock leaking or blown prematurely on the Triumph Bonneville Bobber?

Inspect shock body for oil residue and bounce test Estimated fix cost: $200-$500

Check under seat for spliced or modified wiring Estimated fix cost: $100-$400

Inspect chrome headers closely for rust pitting Estimated fix cost: $150-$350

Known issues to inspect before buying a used Triumph Bonneville Bobber. What to check and how much repairs cost.

SERIOUS

Test for consistent idle and hard start symptoms

Fix cost: $300-$600

MODERATE

Inspect shock body for oil residue and bounce test

Fix cost: $200-$500

MODERATE

Check under seat for spliced or modified wiring

Fix cost: $100-$400

MINOR

Inspect chrome headers closely for rust pitting

Fix cost: $150-$350

☐Pull Triumph service history or dealer records

☐Check for open recalls via VIN lookup

☐Cold start the bike before test ride

☐Inspect frame near rear footpeg mounts for cracks

Solid bike, maintain it and it lasts well