What causes Fuel injection throttle body sync issues on the Triumph Bonneville Scrambler 900?

Rough idle, stumble at low RPM, uneven throttle response Estimated fix cost: $100-$200

What causes Coolant leak from water pump seal on the Triumph Bonneville Scrambler 900?

Staining below pump, low coolant reservoir level Estimated fix cost: $150-$350

Battery not charging, voltage above 15V at idle Estimated fix cost: $80-$200

Cold start rattling noise, disappears when warm Estimated fix cost: $200-$400

Known issues to inspect before buying a used Triumph Bonneville Scrambler 900. What to check and how much repairs cost.

MODERATE

Rough idle, stumble at low RPM, uneven throttle response

Fix cost: $100-$200

MODERATE

Staining below pump, low coolant reservoir level

Fix cost: $150-$350

SERIOUS

Battery not charging, voltage above 15V at idle

Fix cost: $80-$200

MODERATE

Cold start rattling noise, disappears when warm

Fix cost: $200-$400

☐Check service history, cam chain tensioner replaced

☐Test battery voltage and charging output

☐Inspect for coolant staining under engine

☐Warm up fully, listen for idle smoothness

Generally solid, maintenance-sensitive parallel twin