SQL in SQL Server Trouble-shooting

#1: Cannot insert explicit value for identity column in table 'table_name' when IDENTITY_INSERT is set to OFF.

SET IDENTITY_INSERT [dbo].[tbl1] ON
INSERT INTO [dbo].[tbl1]
([Id], [F1], [F2], [F3])
VALUES
(1, 101, 'FOO', 3400),
(2, 101, 'BAR', 3400),
(3, 102, 'YIK', 3400)

SET IDENTITY_INSERT [dbo].[tbl1] OFF
GO