mercury thunderbolt 7.5 hp sn5017602, what year is it. Reply. Mario Alvarez says: August 20, 2021 at 1:25 pm. Hello Rick, i am looking for the real manual of my mercury outboard for what i can read the serial number must be something like OG678044 or OG678014 building year 1998 125ELPT can u let me know if this is the wright number and Mercury has never really used model years for much of anything other than "sales tools" in dealerships. We WILL need your serial number to look up correct parts. Arranged by Horsepower. 4 - 6 HP 7.5 - 9.9 HP 15 - 25 HP 30 - 40 HP (2-CYL) 40 (4-CYL) - 50 HP 60 - 100 HP 115 - 150 HP 175 - 300 HP SPECIAL HIGH-PERFORMANCE OUTBOARDS This Factory Service Repair Manual offers all the service and repair information about Mercury Mariner 45hp-225hp Outboards. The information on this manual covered everything you need to know when you want to repair or service Mercury Mariner 45hp-225hp Outboards. Models Covered: Mercury Merc inline 3 (1972-1989) Mercury Merc inline 4 (1972 • It is very important to refer to your engine's Owners Manual for important safety precautions when installing a propeller. • A new propeller's hub and blades must be checked for sufficient lower unit and trim tab clearances before use. • Make sure all propeller hardware is installed correctly. OEM parts for 1979 Mercury Outboard models. Over 1 million OEM parts for sale. Flat $4.95 shipping available. Shift into neutral and start the engine while holding the throttle arm. Adjust the idle timing screw so that it is 2 degrees before top dead center. Turn off the engine. Start the engine again, following the same steps as in the beginning, making sure you're in neutral. Adjust the maximum timing screw or timing of throttle at wide open (WOT) so In order to continue supplying handmade harnesses for older Mercury engines HP. YEAR. Serial # This is the range of numbers. Your serial number will fall between these numbers. Part # 40 Electric: 70-80. 4874704-5556229. 414-2770. 50: 1967. 2116318-2305100. 50: 70-75. 2858814-4357639. 50 Electric: 76-79. 4357640-5531629. 414-3369. 65: The Mercury Outboard Repair Manual is a comprehensive guide for Mercury/Mariner Outboard models as it lays out all the service procedures for DIY enthusiasts and mechanics. These manual are designed to equip you with the necessary knowledge to do justice to everything from your outboard's basic maintenance to a more in-depth service and repair. -- download this manual.. -- preview this manual 1996 Mercury Force 25 HP Service Manual 90-830894 895 Factory Service manual for 1996 Mercury Force 25HP outboard motors with starting Serial Number 0E127700 and Up Part #: 90-830894 895 Manual chapters: Service Manual Outline 1. GENERAL INFORMATION and SPECIFICATIONS 2. ELECTRICAL and IGNITION - 2A. installing to pump impeller 700-800-850 (Full Gear Shift)..Int. Conn. Color Code. (page top) ( PDF) 700-800-850* (Full Gear Shift)Starter Wiring & Ext. Harness ( PDF) (*note: some use Merc 1000 type ignition system below) 700-800-850-1000 (Full Gear Shift)Starter Wiring & Ext. Harness ( PDF) 950-1100Wiring Diagram & Ext Harness ( PDF) Mercury Parts Catalog. Find the right parts for your Mercury® or MerCruiser® engine here. Search by serial number to see detailed engine diagrams and part numbers, then contact your local authorized Mercury Marine dealer to place your order. You can also browse by model, but we strongly recommend