What causes Water pump seal failure, coolant contamination on the Sherco Sef 300 Racing?

Milky oil, weep hole leaking, coolant level drops Estimated fix cost: $80-$150

What causes Stator and electrical gremlins on the Sherco Sef 300 Racing?

Erratic idle, hard starting, check stator output voltage Estimated fix cost: $200-$400

Hard cold starting, ask for valve service history Estimated fix cost: $150-$400

Inspect welds around pivot area for cracks or repairs Estimated fix cost: $300-$600

Known issues to inspect before buying a used Sherco Sef 300 Racing. What to check and how much repairs cost.

MODERATE

Milky oil, weep hole leaking, coolant level drops

Fix cost: $80-$150

MODERATE

Erratic idle, hard starting, check stator output voltage

Fix cost: $200-$400

SERIOUS

Hard cold starting, ask for valve service history

Fix cost: $150-$400

SERIOUS

Inspect welds around pivot area for cracks or repairs

Fix cost: $300-$600

☐Check oil color and coolant condition

☐Cold start test, note ease of starting

☐Inspect frame welds and subframe bolts

☐Request full maintenance and hours history

Decent but high-maintenance, needs meticulous servicing