[PDF] INSTALLATION INSTRUCTIONS 5 Tachometer - autometer 5" Tachometer 2650-1244-00 Rev. B QUESTIONS: If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s), please contact Auto Meter Technical Service at 866-248-6357. You may also email us at service@autometer. Resources - Installation Support - Instructional Downloads Misplaced instructions are never a good thing. AutoMeter's library of instructions ensures that you have the right installation information for your product.