user: Question: Which year has an Engine(s) of Yamaha V8?
Columns: ['Year', 'Chassis', 'Engine(s)', 'Tyres', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1985.0, 'Zakspeed 841', 'Zakspeed S4 t/c', 'G', 0.0]
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Engine(s)" = 'Yamaha V8';