A 41-year-old man from the Lincoln area died in a crash the B1188 at Norton at about 6.50pm on Friday evening.
The white Yamaha 125cc motorcycle collided with a blue Mazda car.
The rider of the bike was pronounced dead at the scene. The driver of the car was not reported injured.
Police are asking for anyone who was in the area of the B1188 at Nocton and saw either the white Yamaha or the blue Mazda before the collision or saw the collision itself to call 101 or the collision hotline on 01522 558855.
This brings to eight the number of people who have been killed on Lincolnshire’s roads so far this calendar year — and two within 24 hours.