What causes Throttle body sync causes rough idle/surging on the Benelli Tnt 899?

Test idle smoothness, rev response at all RPMs Estimated fix cost: $150-$300

What causes Stator and charging system failure on the Benelli Tnt 899?

Check battery voltage at idle and 3000 RPM Estimated fix cost: $300-$600

Listen for rattling on cold startup near engine Estimated fix cost: $200-$500

Inspect underneath engine for coolant residue staining Estimated fix cost: $150-$350

Known issues to inspect before buying a used Benelli Tnt 899. What to check and how much repairs cost.

MODERATE

Test idle smoothness, rev response at all RPMs

Fix cost: $150-$300

SERIOUS

Check battery voltage at idle and 3000 RPM

Fix cost: $300-$600

MODERATE

Listen for rattling on cold startup near engine

Fix cost: $200-$500

MODERATE

Inspect underneath engine for coolant residue staining

Fix cost: $150-$350

☐Verify full service history with valve checks

☐Test ride cold start for chain rattle

☐Check voltage output with multimeter

☐Inspect fairings for crash damage evidence

Decent engine, weak electrics, needs diligent maintenance