Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_16731248_1 (spi VARCHAR, number_on_cyl VARCHAR)

### Question ###
Are there SPI on the number 7 cylinder?

### Accurate SQL ###

SELECT spi FROM table_16731248_1 WHERE number_on_cyl = "7"