What causes Water pump seal failure, coolant leak on the Ktm 1090 Adventure?

Weep hole under engine for coolant residue or staining Estimated fix cost: $150-$400

What causes Stator/charging system failure on the Ktm 1090 Adventure?

Check voltage at idle and revs, look for dimming lights Estimated fix cost: $300-$600

Idle quality when cold, any hesitation or surging Estimated fix cost: $50-$150

Inspect welds around rear subframe junction closely Estimated fix cost: $500-$1500

Known issues to inspect before buying a used Ktm 1090 Adventure. What to check and how much repairs cost.

MODERATE

Weep hole under engine for coolant residue or staining

Fix cost: $150-$400

SERIOUS

Check voltage at idle and revs, look for dimming lights

Fix cost: $300-$600

MINOR

Idle quality when cold, any hesitation or surging

Fix cost: $50-$150

SERIOUS

Inspect welds around rear subframe junction closely

Fix cost: $500-$1500

☐Check full service history, especially valve checks

☐Test ride cold start, listen for top-end noise

☐Inspect radiator and coolant hoses for leaks

☐Verify ABS and traction control function properly

Solid adventure bike, maintenance-sensitive, buy serviced examples