More information is needed to give you an accurate answer. What is the complete model number of your engine? It will be printed on the serial number tag.
-- Travis McGee, main character in a book series by John D. McDonald
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.