Remove flywheel cover and spark plug cover. Adjust tab if out of specification. As the throttle is closed, the throttle lever rotates back and the throttle lever link rod returns, causing the diaphragm in the dashpot to move back, As the diaphragm moves back, suction causes the air from the venturi of carburetor 4 to flow through a one-way valve in the carburetors and back to the dashpot. Re-check valve clearance using Valve Clearance Measurement Steps. Each 135hp engine repair manual covers every aspect of repair.
Measure and record the exhaust valve clearance for cylinders 2 and 4. Workshop Service Repair Manuals are needed for do it yourself servicing, teardowns, repairs, overhauls, adjustments, and complete specifications. Install tensioner spring and tighten timing belt tensioner. As the throttle is opened, the throttle lever rotates and pushes the throttle lever link rod. This Workshop Service Repair Manual contains all the technical information you will need to properly perform all repairs.
Covers Bigfoot Big Foot and Non-Bigfoot models. Each manual covers every aspect of repair, from simple maintenance to complete engine overhaul. The upper electrothermal valve controls fuel flow for carburetors 1 and 2, and the lower valve controls fuel flow for carburetors 3 and 4. If no adjustment is necessary skip to step 11 on. Covers Bigfoot Big Foot and Non-Bigfoot models. Workshop Service Repair Manual —. Measure and record the intake valve clearance for cylinders 3 and 4.
Install tensioner spring and tighten timing belt tensioner bolt. Two electrothermal valves are installed on the carburetor assembly. The workshop Mercury repair manuals listed are available for instant download, allowing you to start working on your outboard motor now. V-6 Cylinder, Two Cycle, Direct Injected. V-6 Cylinder, Two Cycle, Direct Injected. Insert the proper valve pad into the valve lifter.
Align timing marks on driven cams. Also, the diaphragm functions as a coasting enrichener during quick deceleration, preventing the engine form stalling. As the wax heats up the electrothermal ram needle begins to extend, partially closing the fuel enrichment valve, and reducing the flow of fuel from the float chamber into the venturi. Install timing belt and spark plugs. Remove cylinder head cover and spark plugs.
Connect fuel hoses and spark plug leads. Loosen timing belt tensioner bolt and remove tensioner spring. . Install spark plug cover and flywheel cover. Each manual contains step-by-step repair procedures, illustrations, diagrams and important specifications, as well as troubleshooting guides.
After start-up, the current supplied form the electric power source and then flows to the electrothermal valves causing the wax in the valves to heat up. If adjustment of intake or exhaust valve clearance is necessary out of specification follow Changing Pad Thickness below. Tighten timing belt tensioner and install tensioner spring. The air flows through the in-line, one-way valve, and then to all of the carburetors. With carburetor turned upside down, and carb scale seated on inner edge, check float level from top of float to float bowl flange as shown. Recieve a download straight to your computer in just seconds and fix your problems.
Measure and record the exhaust valve clearance for cylinders 1 and 3. Disconnect spark plug leads and fuel hoses. This additional air flows into the carburetors and mixes with the fuel from the main jets. This manual also contains advance troubleshooting to help diagnose and pinpoint the problem. Before start-up, the electrothermal ram needle is retracted the fuel enrichment valve is opened according to the temperature, allowing a high percentage of fuel to flow form the flat chamber into the venturi during start-up. With the outboard in forward gear, adjust idle speed screw to obtain the specified idle speed. Download a 135 hp manual straight your computer in seconds and fix your problems now.
Remove camshaft caps and camshafts. Remove driven sprockets and timing belt. Remove timing belt and driven sprockets. Whether performing basic maintenance or complete engine overhaul, this downloadable 135hp repair manual covers it all. Turn the flywheel 360° clockwise. Covers Bigfoot Big Foot and Non-Bigfoot models. Models Covered are Mercury - Mariner 9.