According to the query on Xicai.com, the specific steps for Yinzhou Bank's temporary limit adjustment are as follows:

1. Log in to online banking and click "Temporary Limit Adjustment" in the "Credit Card" menu.

2. Enter the temporary credit limit to be increased and verify your identity after confirmation.

3. Enter the verification code and submit the application. Once approved by the bank, the temporary limit adjustment will take effect.

It should be noted that the upper limit of temporary credit limit adjustment is 20% of the permanent credit limit, and the temporary credit limit is generally valid for one month.